Pacific Radio Vol 1 1 Jan 1917

7/23/2019 Pacific Radio Vol 1 1 Jan 1917

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VOLUME

NO.

r

i

i

y

i

4

JANUARY. 917

IN

HIS

SSUE

TEN

ENTS

D. Lee D Forest

vs.

O

oorkead

Tke

New

roposed

Rado

Act

First

and Only

Wireless

Magazine

published

on

the Pacific Coast

I

MM



THE

LECTRON

ELAY

PATENT

APPLIED FOR

The

Electron Relay s a

uper-Sensi-

v ive device

or he

eception

of

damped

and

undamped

waves

his

ube

eeds

no ntroduction as t

has

been

accepted

as

he

tandard

acuum

detector.

We are

now

able o

give

he ollow-

ing

guarantee:

If

or ny

eason

he

lectron

Relay s ound unsatisfactory,

or

f

the

ilaments do

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ast isht

hun-

dred hours,

or

f

he

Rel f

s

not

more

sensitive

than

the

deuPy.or

you

are

ow

sing, egardless f he

type,

e ill mmediately efund

your

money.

The Electron

Relay

has

een nder-

going

mprovement

within

he

last

thirty

days

and due o

he

arge

ale

oe

can

manufacture

hem

t

educed

ost.

The

mproved

ype

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Re-

lay bears

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etters

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ach

ube

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stamped in his

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e

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THE

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$5.00 repaid

We manufacture he panel

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batteries

rom 15.00 p.

Send for our descriptive

circulars n

all of

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apparatus.

Pacific

aboratories ales ept.

534 acific ldg., an

Francisco



YOU

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ADIO

EWS

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In

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s he only

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see

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Popular Science

of October, 915.

mitations

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ix

months—and n mitation s never

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undreds of estimonials

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Advertisers

please mention

h is

Magazine

J



PACIFIC ADIO

I-AVS

*

PACIFIC

OAST FFICE F

WM.

.

MURDOCK CO.

CHELSEA, MASS.

•I

liBl

N o .

5 5 Receiver

N o,

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AND

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IS

21

ECOND T., AN

RANCISCO

S E N D OR R EE

CATALOGUE

KEELER,

WHITE

C O G E N T S

When writing o Advertisers lease mention

his

Magazine



1

.pacific a6vo ws

l

m

A

Monthly

Magazine

of

Radio

Communication

Published

y

the an rancisco

adio

Club

H . . ICKOW

ditor

.

O. FASSETT.... Asst. Manager

P.

.

ENNER

anager

.

.

c G O W N

sst.

Editor

Volume A N U A R Y , 917 o.

Contents

Cover Design

Introduction

Facts

'To

ictory"

T h e

.

. adio

Club

T he ew roposed adio Act

Dr.

.c e

DeForest

s.

O.

.

Moorhcad

Radio

Constructors

Leave

Mare

sland

Sealing h e adio f

elligerent

erchantmen

T he nd

of

th e "Bear"

Coninmnication

ith

apan

Splashes

f

tatic

Johnny's

.xaniination

The "Providencia"

Disaster

Lightship nstallations

T h e

California-W ashington

ootball

Game

by W ireless

Editorial

T he

adio

Laboratory

at

he

University

f

California.

T h e

Query

Department

Handy

Hints

Marconi uperintendent esigns

C H A N G E OF

A D D R E S S — W e

should

be

notified

promptly

f

any

change

in

our ddress,

iving

both he

ld

nd

ew

ocation.

he Postmaster,

s

well as

the

Publishers,

should be notified

of

the change.

All

forms

close

on

the

first

of

th e

month

preceding

date

of

issue.

Published

Monthly by

he an

rancisco adio Club

50

Main

t. ,

S an

Francisco,

Cal.

Subscription

$1.00

per

year

in th e

U.

S.—$1.50

Foreign. ingle

copies

10

cents

J. . Saho

6

6

7

9

1 0

1 3

1 4

1 5

1 7

1 8

1 9

20

2 1

2 1

22

2 4

26

2 7

28



PACIFIC R A.OIO

F .W S

>

Pacific ado

ews

The publishers ereby disclaim

he ntire

e-

sponsibility f

he

tatements

made

n his

Magazine.

e

ish

o tate hat

he

Pacific

Radio

News"

s

an organ for

the

conveyance f nowledge

r

pinion

from uthor o eader, nd we

ill

publish any and all sides of

various

controversies

pertaining to the

art

of

adio

ommunication

ro-

viding

hey

re written n

presentable

manner

I

JANUARY

917

^

WIipu writing c i A.ivcriis.-is ilrasr n-ntion h is Magazine



PAC11"IC

ADIO FAVS

IntroJucmg

ke

Pacific

Radio

News

REASONS

FOR

PUBLISHING THE

MAGAZINE

A

publication hat ills he ongest

ell ant has

become

realitv at ast. low

often

have yon womlered-why a perioil

ical

elated

to

Pacific

Coast

radio

news

had not

been published

long

ago? ow often have you onged

or

just

such maga-

zine?

he

answer

s

he

Pacific

adio

ews", a agazine

on adio

subjects

hat has

conic

o

stay.

Verv ittle acific

Coast

ews

s published n

he

existing

radio

magazines,

mainly

due

to

he

act

hat

hey

are

Eastern

publications, and

n order o publish acific news hey ould

have

o

dig

deep

nto

heir

pockets. hat

s

naturally

o be

expected

; t

would be ust as

hard

or us

o

publish

astern

news

as t s or hem o publish Western news.

A

agazine

publisher

cannot

lease

he

entire

number

of

radio nthusiasts n his ountry ith ingle ublication,

thousands

are

bound o disagree with im n any espects,

and again

housands

will

ide

with

him

o

he

ery

ast.

I

o

publish

a

magazine even on he Pacific

Coast

s

a great under-

taking:

we

have

o

overcome

a

housand

and

one

difficulties,

and. ntil hese

are

horoughly vercome, e annot lease

the verage

eader

of

his

ublication.

e

ill ndeavor,

however, o atisfy he

emands

f he

reat ajority

of

readers,

or

we will publish

news

(hat

will p|>eal o ninety-

nine

out

of

a

hundred

adio

operators,

and

we assure you

hat

this agazine ill

e

one

of he

greatest

f

ts

ind

n

he

Cniled

Slates.

PACIFIC

COAST NEWS

Without

he

slightest

doubt,

an Eastern pttblicalioit

s

in

a

better

osition

o

ublish

ascinating

ireless

ews

imply

because

he

great

manufacturing concerns,

he

eading Radio

Telegraph companies, he great amount of oreign

news, etc.,

is originated on he

Eastern

coast.

Eel his

not

iscourage

you:

quite

he coulrary.

et

t

he

of

great encouragement o you because ite news hat e will

publish

will ie

equal n quality,

equal

n

aseiuation

and

equal

in

nstnictiveness

o hat published

n

other

adio magazines.

An

unlimited

supply

of

the

most nteresting

news

can

be

pub-

lished

monthly,

the

Pacific

Coast s

overflooded

with

news

and

the wireless ield has lourished as much on

he

Pacific Coast

as

t

as

anywhere

lse.

ut

you do

not

know

his,

and

t

may

e

difficult

o explain

t o you, and he

only ay hat

we

can

rove

his

act

s

o have ou ead

he

agazine

monthly. he reatest adio ngineers n he

ountry

ill



PACIFIC

ADIO A N ' S

agree

with

us,

many

having

already given

us

heir heartiest

support

and

have

assured

us

of

an

unlimited

supply

of

interest-

ing and nstructive articles.

OUR

NBIASED

PINION

I his

magazine

s

not published

by

any existing adio cor-

poration. t s ublished y

one f

he est

organized adio

clubs

n he

nited

tates—the

an rancisco

adio

lub.

I he articles

published will prove

to

be interesting and

fascinat-

ing

in

all espects,

or

we will publish articles hat

will

make

the

greatest

adio

engineers

hink,

and

assure you

hat

hey

will

be

written

so hat

he

humblest amateur can

understand

them.

We are n

a

position o

publish articles hat other maga-

zines

dare not publish.

hey

have their reasons,

and

it

would

be

an

act

of

great njustice

o them

o publish

certain

articles.

I

his case does not apply to

us,

we

are

not ncorporated with

any

manufacturing

corporation,

and

herefore we

can

publish

ABSOLUTE FACTS and give you

BOTH

sides

of

the storv.

\Ve

will

publish

articles

hat have never been een or heard

of

before

by

he

average

operator, our

unbiased

opinion

ill

lead us to certain

victorv.

LONG

LIVE

THE

ACIFIC

RADIO

NEWS

THE UBLISHERS.

FACTS

A

magazine

of

W estern ews,

A ublication

ine,

I

Ins ecome great eality

for

nce

nd

ll

h e ime.

H ow

often have you

wondered

wh y

A

ook

ou

eeded most,

H as not

been

ublished

ong

ago

On

our

acilic

Coast?

T h e

eason

s.

dear

eader

riend,

That

o

ne ad he

pep".

T o

iv e

ou

acts, nd nly acts,

And ak e h e irst

great

tep.

T h e

problem as

been

solved

by us.

W e

have

th e

ews

galore.

S o

help

us boost th e

"Radio

News"

For

nce

nd

vermore.

T h e an

rancisco

adio

Club,

I ts

members ried

nd rue,

Will

urnish ll

he

atest ews

That

may

ppeal o ou .

T o

inish

hen,

we

wish

o

say

T he irst great tep was made,

To iv e ou

acts nd nly

acts,

And

acts

hall

ever

fade.

—II.

W .

Dickow.

your

orth

projects

ith

"T O

ICTORY"

(Reproduced rom Herbert auf-

man eekly age

ow

ppearing

i n

he

an

rancisco

xa

miner.

Copyright.

9 1 6 ,

y erbert

auf-

man.)

They

may

oubt

ou,

They

may

lout ou,

Block

our

lans

nd

ie

bout

you.

Deprecate

vision,

I.ash

our

rision.

B ut he ltimate ecision

Rests

ith

ou.

f

eers

thrash ou,

Every incompoop ill

mash

you.

Go n

ith our

ork—don't

heed

hem;

Will nd

onfidence

don't

eed

them.

Every man who

as

mission

And

emains

ru e

o

mbition,

Downs h e rifles hat ppose

him

And

ollects

h at

ankind

owes im .

and

dc -

can



PACIFIC

ADIO

FWS

/

Of

all th e

great

wireless rganizations

in th e

United

States, it

will

be ifficult o

ame

ne hat as ccomplished

s

much

s

he

an

Francisco adio

Club,

considering

f

ourse,

he

ength

f

im e

hat

th e

lub h as een rganized.

A

rief history

f

he lub

was

llustrated

n h e

916 dition

f

th e

"Year

Book", bu t

as

a

scant thousand

wireless enthusiasts

received

a opy

of

this

book,

we

hink

t

dvisable

o ublish another

account

of

the proceedings of this well known organization. he club started

its

career

uring

he

arly

part

f

anuary.

916,

when

andful

f

local operators met in order o iscuss he

ossibility

f stablishing

a

wireless

organization.

T he

plans

were

successfully

carried

out,

and

the first steps towards

founding

the

great

organization

were

taken.

he

news

spread

quickly

and ffectively; many operators

esponded

o he all or members,

and

the

membership increased

at a

rapid

rate

as the

months

passed

by.

At he

im e

h e Year ook was ublished,

nly

6

adio perators

possessed he

lub

embership

ard,

ut onditions

av e

hanged

greatly

ince that

ime.

T he ask

f

ublishing he Year

ook

was

hought

o e n m-

possibility

y other adio

rganizations, ut

ur

plans roved o

e

successful n ll espects, the ook was rinted y ne

f

our mem-

bers

and

distributed

among

radio

operators

thruout

the

United

tates.

Hundreds

f

etters

were

eceived

ro m astern

nthusiasts sking

for opies

f

h is

ooklet,

nd

h e

upply

as

xhausted

ithin

period

f

three

weeks

fter he

dale

f

ublication.

At meeting

f

h e lub

eld

everal

months

go,

U.

.

adio

Inspector. r,

.

. tone, tated hat he an rancisco

adio

Club

was

he

only rganization

hat

has

undertaken he

ask

f

ub-

lishing a

Year ook, excepting, of

course, the

great nstitute of

adio

Engineers. h e

upply

f he ook eing xhausted, he members

desired o

ublish

econd ssue f he roceedings on an nlarged

scale,

and

he

Pacific

adio ews"

s

th e

esult.

It may e f o ittle nterest o

many

radio operators o

ealize

that

an rganization

f

ur haracter s

able

o ublish nd

inance

magazine

of

such

roportions

s

the

N ews" ,

but

evertheless

it

s

a

great

eality. e

av e ndertaken

omething

hat ould

ot

av e

been

ttempted

y undreds f ther imilar

rganizations

n h e

country. h e

time

was

ripe

fo r

a

great

organization

to

come

into

th e

field

n

an rancisco; our city lacked nothing

but

ood adio lub

and adio

magazine.

In

ormer

ears

here

nce

lourished adio rganization

lso

entitled

he

an

rancisco

adio

lub,

aving

embership

f

about

ifteen

perators.

h is

lub was

rganized

efore

he

.

.

Government

laws

went

into effect and

disbanded shortly

after

th e

laws

of

radio communication h ad been passed.

Out

of

th e fifteen members,

twelve

of

them successfully passed h e

U.

. overnment

ommercial irst

rade

xamination

nd

ere

assigned s

perators

o

arious hip nd

hore

tations

long

h e

Pacific

Coast. he

ormer

resident

f

h e lub,

M r.

.

.

Cowden,

is now

working

h e

econd

rick t

he

eattle

and

tation

f

h e

Marconi

W ireless

elegraph

Co.,

eing ormerly

mployed

s

pera-

to r board many ships

quipped

with

Marconi pparatus. n

letter



PACIKIC

ADIO

EWS

received ro m im

everal weeks

go,

e makes

he ollowing

tate-

ment

egarding

he

an

rancisco

adio

Club:

"I

hear...

.that here s onsiderable ctivity n an rancisco n

th e wireless game;

hat

there

is

quite

a

club in

existence,

being

wide-

awake

nd oing something seful.

"I also..

..hear

that

several of th e

original S ,

.

adio Club mem-

bers

are connected

with

th e new organization. ounds like

a

revival

of

th e

spirit

of

th e balmy old days."

Many of h e

riginal

members are still employed by various

wire-

less orporations n

he

acific

oast,

while

thers

av e

eft

he

game or ood.

T he

membership

is

divided

into

tw o

classes:

ull

Grade

Members,

and

Associates. nly

ull

Grade

Members

re

llowed the

rivilege

of

olding

he

ffices

f

resident,

ice-President

nd

xamining

Officers.

xaminations

or

ull

Grade Members

re

eld

quarterly

at he

lub

room under he supervision

f

tw o Examining Officers.

T he

xamination is

equivalent

in all

espects

to

he

U.

.

Govern-

ment examination or First Grade

Commercial

icense nd ny

mem-

ber

who successfully

passes

the examination will

be

sure

to meet

with

equal

uccess when e s

xamined y he

Government

Officers.

T he

lub

has

been

f material

ssistance

o

he adio nspectors

of

this city,

as

well

s

to

he ommercial and stations n he mme-

diate icinity. eports

f

nterference

etween

mateur

nd

om-

mercial

tations s apidly ecreasing; tations perated y members

are tuned

o omply

with

he

la w

by means f

accurately

alibrated

measuring

nstruments hat h e

lub

ossesses.

T he

ask

f

uning

tations

o

esonance

as

met

with

great

p-

proval

by

the

local

adio

Inspectors,

as

will be

shown

in a

statement

made

by U.

S .

Radio

Inspector

V .

Ford

Greaves, in

charge

of

th e

local

office at he

Custom

House.

is

tatement

ollows:

(From

etter

ent o

he

resident

f

he

Club,

M r.

.

W .

Dickow.)

"I

am

very

much

obliged

for

your

letter

of

September 11th,

and desire to ongratulate you and the members

of

your

club

upon

our

xcellent

rganization. elieve hat

your work

will rove

o

he mutual dvantage

f

h is

Department nd

your

members.

Signed)

.

FORD G R E A V E S ,

Radio

Engineer."

N othing

but

the

highest

praises

are

received

from

the

various

radio

engineers

n

h is ity egarding ur rganization, nd

we

an ruth-

fully

tate

hat

ew,

f any,

organizations

have

ccomplished

as

much

as

we

ave,

onsidering th e ength

f

im e that we

av e

een rgan-

ized. an y

prominent

peakers

address

he

members

at

he

egular

business

eetings,

adio nspectors,

aval perators. lectrical

Engineers,

nd

others

ave

elivered

ery

interesting

nd

nstructive

lectures n

arious

ubjects.

he

ew

lub

oom

s ocated n

h e

northeast

corner f rederick

nd

elvedere treets,

nd

s

mply

large

nough

o omfortably ccommodate 0 0 members. he mem-

bership

f

he lub pproaches

ery near

the undred

mark,

s

our

membership

directory

hows.

Commercial

and

experimental

operators

epresenting

lmost

every

wireless

orporation

n

he

acific

Coast

re

embers

f

he

lub,

thus nabling

he

members

to

eep

n

constant ouch

with he

many

developments

made

y

h e

arious

orporations.

T he nitiation ee

or

members

nd

ssociates

s

ne

ollar, he

membership

ard

eing

upplied po n ayment f he nitiation ee .



PACIFIC ADIO EWS

T h e onthly

ues

or

oth

rades

f

membership re

wenty-five

cents,

payable t

h e

irst

meetmg f

he

month.

„

T he large membership ertificate s

issued to all members

wfio are

in

ood tanding,

he

ppearance

f

he

card

aving

met

with

he

utmost pproval f he membership. t s imilar n ll espects o

the

membership

ertificate

ssued

y

other

arge

wireless

rganiza-

tions nd will ill prominent

osition

n

ny

adio tation. he

regular

bi-monthly

lectures

that

are

delivered

by

members

of

the

lub

are ent n

rinted

orm

o

all members, o

harge

eing

made or

this

ervice. t s

esirable

hat

he ay District

ommercial nd

experimental operators

pply

or

membership

n

order

hat

our lub

may

ecome ne f h e

eading

rganizations

n he

ountry.

ny

information

egarding he lub will

e

urnished

by

he ecretary-

Treasurer, H. . ee, 58 0

Grove

t., an

rancisco, Cal.

OFFICERS

OF

THE CLUB

H .

.

ickow

resident

D.

.

cGown

ice-President

H .

.

ee

ecretary-Treasurer

T

. yan ergeant-at-Arms

H .

. alarin

xamining

Officer

C. . eaney

xamining

Officer

Tke

New

Proposed

Radio

Act

To

B e

Placed

Before Congress At

Its N e x t S e s s i o n

GOVERNMENT

OWNERSHIP

OF

ALL

C OA STA L

STATIONS

S o . - ,

.

e t

nacted

y

he

enate

and ouse f epresentatives f he

United

tates

f

merica

n

ongress

assembled,

hat

herever

sed

n

h is

Act he erm radio ommunU'ai inn

shall o

orislrued

o

mean

ommunioa-

lii.ti

y

ny

ystem

or

method

«t

eleotrl-

< - h

ommunication

ithout

he

id

f

.tiler

conducting

conned ion;

he

word "npparains" . . mean

machines,

de-

v i . - . - s , nd il ilier

unipinent

sed n

radl minunicaUon:

he

words

Trans-

mitter"

nd

receiver" o

ean,

l i e

s.-n.ling

nd eceiving

|i|iarains,

espec-

llvcly,

sed

n

adio ommiinhali.m:

he

word

radiogram" o

mean

ny

message,

i-oimnnnication. r

ignal,

ransmitted

r

received

n

adio

nmmunlcation:

lie

term

radio iallon" o ean lace

where

apparatus

is

used or

transmlUing,

or or ransiiiilling

nd

eceiving,

he

signals sed n adio .ommnnicatlon; he

id-in

(

.overnment

land

stalion"

to

mean

any

adio

iallon

n

and,

r

n

er-

inanenlly

oored

essel,

ontrolled

nd

opera

led

y

ny department

f

th e

Gov-

ernment: th e term

"Government ship

sia-

llon"

o

oan

-

adio

tation n

ny

ship

f

i e

overnment

onlrolh-d

nd

operated

y ny epartment of he Gov-

ernment nd

ot

ermanently

oored:

and lie erm Territory f

he

Untied

Slates"

r

th e

word

Territory"

o

mean

any crrilory.

Dislricl,

Zone, nsular pos-

session, ater, r

ther

lace

uhjecl

to

he urisdiction

f

i e

United

tates,

and

ot within

ny

laie.

The word

person"

s used n this Acl

shall e onstrued

o

mport

oth

he

plural nd

he

ingular

nd

o

nclude

a

ciirporali.in,

o-partnership,

ompany,

i

association;

and

when

construing and

n-

forcing

lie rovisions

f

h is cl. he

ad, mission,

r

ailure f any irector,

oitlcer.

gent,

r mployee

f

uc h

or-

poral

ion.

o-partnership,

ompany,

r

Mssoclallon

cting

ilhin

lie

cope

f

his

mployment

r

l t l . - e

hall

n

very

case

.. - eemed o e

he

c t. mission,

or ailure f

ucli

orporal

Ion.

o-part-

nership, ompany, r

association, s well

as liat of he

person

acting

for

or

on be-

half

thereof.

S e c .

adio

tations re

ivided

or

I lie

purposes

of ids c l . nto

th e

ollow-

ing

classes:

1

oaslal

tation, tation

n ano

or

on

ermanenlly

moored

essel

sed

for

lie xchange f

orrespondence

with

ships t ea. oastal tations nclude

(a) liose pen o eneral

ublic orre-

spondence. nd

b>

hose

open o

imfled

pid.lic

orrespondence. oastal tations

of lass

h ) ransmit, nd

eceive

ublic

messages

o

nd rom

ertain

tations

(Continued n

age f)



Dr.

Lee

De

Forest

s. O

B

MoorkcaJ

B y

O.

. oorhead

T h e

ubject f acuum ube

e-

tectors as

een

ery

ell

overed

in he

ast

year

and

eference

o any

publication

ealing

ith

adio ill

reveal mass f echnical

data

ov-

ering

he

peration,

circuits

and

har-

acteristics

f

he

arious

ypes

f

these devices.

herefore av e elim-

inated

ll

atter

ealing

ith

h is

phase

f

he ubject.

ummary

f

th e

uit

ecently

eard n

he

. .

Federal ourt

nd

he

pinion

f

Judge

an

Fleet

hall

e

he

ubject

of

he ollowing

rticle.

On

he ifteenth

ay

f

ebruary,

this ear,

he

e

orest adio

el.

an d Tel. Co. iled a

complaint

gainst

M r,

H y d e

and

th e writer, who arc co-

inventors

of

h e lectron

elay,

al-

leging

nfringement

po n even f

his atents.

he

efense f h is uit

was mmediately

aken

p nd ocal

radio

xperts

ere

alled

po n

o

submit

estimony n

our

ehalf.

r.

llaller,

f

an

rancisco,

iled

lengthy ffidavit egarding he ction

of all

ypes

of

vacuum

detectors. o

trouble

as pared

o

ollect

ata

fo r

h is

ffidavit. ages

rom h e

writings

f

uthorities

n

h is

ub-

ject were opied nd

ncorporated

n

bis estimony

and

lie ompleted

ep-

osition

argely

ffset

h e

howing

f

M r.

ohn

tone

f

h e

e

orest

Company. r. .

.

prado, f

S an

rancisco, repared

aluable

affidavit

ouching po n h e heory

of

acuum

ube

detectors.

r.

Hyde

filed vidence

overing ie

manufac-

ture

f

h e elay, hile

he riter

submitted everal

epositions

n h e

operation

nd

amifacturc

f

h e

lube. he

irm

f

Whi le

nd

rost

was

etained

or

he

efense

nd)

M r. illiam

.

White

repared

n

argument

which

ealt

ith

ll ypes

of detectors

showing

th e dvance and

difference

n

ach.

After h is vidence as

iled,

he

Dc orest

ompany

rought

orth

several

ounter

ffidavits

n hich

they

ltempted

o

how ow ittle

radio

men po n h is oast new

of

th e ubject. t as lso

harged

that h e

efendants

ere

perating

in

ecretive

anner.

his as

done

o

reate

n

nfavorable m-

pression

f

he

efendants.

he

De

Forest

ompany as artially uc-

cessful

n

his, s udge an

leet

mentions n nfavorable

mpression

made

po n

h is

mind

s

o

he

man-

ner

n which h e defendants racticed

their

ights n he evices hey

were

niamifactnring.

he

nly

eason

c

I 'orest

as

uccessful

n

his, as

due

o

he ac t hat we

were

trug-

gling long

with very

imited

apital

and

ur

ompanies

ere

ot

ell

known.

owever,

when

our

asserted

rights

were ontested we were

uick

to

ome

orth

nd

efend

hem.

Of

ourse he rosecution

ndeav-

ored

o

urround

he

uestion

f

n-

fringement

with

o

many

petty

issues

that he ctual

uestion

was

ard

o

decide.

udge

an

leet

ade

very

air ecision,

nder h e

ircum-

stances,

y

merely

equiring

ond

from

he

efendants

n

rder

o

n-

sure our appearance at he inal rial.

John

I.

iller,

or

laintiff,

William

.

Whi te ,

or

efendants.

'I

h e

Court

orally):

ully

ecog-

nize

he alue

nd ropriety

f

he

general

ule

hat h e

uestion

f

n-

fringerncnt,

f

at ll lose hould

not

be

rejudiced

y

etermining

t ven

potentially

n

earing

f

h is ind.

I

hink

ffidavits, eing

holly

x

parte.

re

ery

nefficient

s

medi-

um

f

eaching

he

est esults

n

any lose

uestion

f

ac t o e

e-

duced

rom

vidence.

he ntroduc-

lion

f

vidence n pe n court n he

usual

anner,

here

h e

ight

nd

privilege

f ross

xaminalion

ay

he ad

s

uch ore

fficient

or

bringing ut

he ull

ruth;

hat

s

so ssential requently

n

etermin-

ing he

omewhat

efined uestions

arising

in

ases

of

h is haracter; nd



PACIFIC ADIO E W S '

1 1

I am nclined o think hat he how-

ing

ere

is

not

such s

hould induce

th e court

o

depart ro m he rotec-

tion

f

hat

ule, here

eing

ere o

showing

f

ormer alidation f

this

atent,

or,

o

y

ind,

ny

such

eneral

ublic

ecognition

f

ts

validity s

ould

eet h e ecessi-

ties

of

th e court

in

he exercise

of

its

discretion n avor

f

granting

n

n-

junction. ut

s

ave

oubtless

indicated y my uggestions o

oun-

sel or efendant

n

y omments

upon ome

eatures

f

h is

howing,

there

as

een

ade pon

y

mind

a ery npleasant mpression

s

o

th e

haracter f

ome f he

ircum-

stances nder

hich

he efendants

have

initiated

nd

practiced

th e

rights

they

assert

o

he

evice

omplained

of.

t

may

e

hat

heir

laim s he

result

f

erfectly

honest

iscoveries

by

h e

defendants

wh o

have

put orth

this lleged nfringing

nstrument.

N ow

that th e

aspect

of

the

showing

here

n

he

part

f

h e

laintiff

as

not o my

mind

een

ufficiently

met

and issipated y h e efendants'

showing,

nd

hile,

or

he

easons

stated, o

ot

hink t s

ase

or

an

njunction,

do

think

that

th e

case

is

proper

one

o

require

he

defend-

ants

o

urnish

n

ndemnity

bond

o

th e

laintiff,

at east

ntil

uch

im e

as

the

ase

nder ubmission

n

ew

York ay e

etermined,—that

hey

will espond,

hould

heir evice be

declared

an infringement, in ny dam-

ages

hat

hey

may

ause

he

plaintiff

in

he meantime by

continuing o

ut

their

device

upon he market;

hat

s,

of

ourse, nless

hey refer

o et

an njunction ssue.

f

he efend-

ants

prefer

o

av e n

njunction

o

giving

ond,

ill

rant

h e

mo-

tion.

he

nly

ifficulty s

he

amount of th e ond. here as

een

no

sufficient

showing s

to

th e

extent

of

h e raffic. To

M r.

W hite.) o

you now anything

s

o

he xtent

of

heir

usiness?

M r.

White: o,

our

honor;

but

do know hat M r. Hyde makes all

f

his

ulbs

imself.

T he

ourt

to

M r.

Miller); ave

you

ny asis n hich

o

stimate

th e

extent

of

th e

injury

that

you

think

you ill

uffer?

M r. iller:

ur

ffidavits how

that

he

amage

s

ery

xtensive,

because

he ublications

f

dvertise-

ments

f

hese

evices

nd

heir

ale

have

een

ery xtensive.

n

one n-

stance

here

were

nearly

tw o

hundred

sales,

early

ll f h e efendants

devices, nd onsequently

he

ates

of

our

evice ere urtailed

o hat

extent,

and

would

efer

your

Honor

on hat oint o ertain dvertise-

ments.

ere

s

h e

Electrical

x -

perimenter"

and

n

age

28 2

we find,

" Ne w

rice.

etector Amplifier nd

Oscillator 5,25,"

ur

rice was 7.50

when h is itigation tarted. ow we

have

ad

o educe

our

rice.

t

s

signed at

th e

bottom "Audiotron

Sales

Company, an rancisco."

hen

on

another age

n h is

am e

magazine,

on

age

73,

we

ind

h e am e

hing.

"Improvement otice." t

ays t

s

an

mprovement,

ut

h e ut hows

that t s he ame evice.

Double

filament

5.50:

ingle ilament

4.00."

And h is

s

igned he

Pacific

ab-

oratories

ales

Company,

34

acific

Building,

an rancisco."

hat

s

M r.

oorhead,

he

ther

efendant.

After h e plit p e egan manufac-

turing hem

nder

he

ame f

h e

Pacific aboratories

ales

ompany.

Then urther

long, n

age

89,

we

find

nother dvertisement. Double

Filaments"

T h e Court; ell,

M r.

iller,

h is

doesn't

urnish

e

with

ny

dea

f

th e

emand

or

he

rticle.

hat

s

th e

emand?

M r. M iller: h , he

demand s

very

great.

he

emand

s

ostly or

amateur ireless

perators. hey

bu y

ne

f

hese

hings. hey don't

last

forever,

and they

have

o bu y

an-

other

ne. here

re

housands f

wireless perators. ll

f

hem ake

these apers

o

ee what

s oming

out

very

ay . poke with he

at-

torneys, or onferred

with

he attor-

neys,

n

egard

o

his

matter

in

ase

th e

ourt hould ecide hat

t

as

most

oo

tringent

ourse

o e-

quire ond, and h ey

aid

hat they

thought

h e bond ought to

be

$15,000.

Apprehending hat here ight

e

some

uestions

n

egard

o

h e

mat-

ter,

sked

hose

uestions

f

h em

and

hat s he nswer

h ey

ave.

think ond n bout h e um f

$10,000 would

e

about

he

ight

um

to ive, ecause

ou

an

get ond

for 10,000

ractically

s

asy

s ne

for

5,000.

hey

would

e

iable

n

th e bond

only

in case (he

court

should

find here was nfringement.

f

here

has

een

o

nfringement,

s

hey o

confidently assert,

h ey

won't e

ut

anything

xcept h e remium.

T he

ourt:

f

ourse

f

here s

no

nfringement

h ey

ould

e

nti-



1 2

PACIFIC

ADIO EWS

tied to

recover

th e

amount

of

th e pre-

mium rom

our

lient s

roper

costs

r

isbursements.

M r.

White:

ou

would

av e

to

put

up

a

ollateral

ecurity to get

a

ond.

T o

ake

arge

iz e

ond

s

he

same hing

s

o grant

an

njunction

which

nderstand

he

ourt oes

not wish o o.

M r.

M iller:

bonding company

al-

ways

requires

some

ind of

a

uaran-

tee.

ou

an't

xpect onding

company

to

give

a

bond without some

kind

f

ecurity o

hemselves.

T h e

ourt;

re hese

arious

e-

fendants ll

ffending

n

h e

am e

way?

M r.

M iller:

o,

but

Moorhead nd

Hyde

nd Cunningham

re

ll

n

he

same

oat.

M r,

hite; o;

oorhead

ells

only he bulbs that e makes himself.

Hyde

makes

he ulbs or Cunning-

ham ,

T h e Court:

ell,

f

ourse m

bound y th e howing

as

o what he

situation was

at

h e

time

h e

suit

was

brought.

M r. White:

ell,

at

he

im e

he

suit as rought here was

o

on-

nection

etween

Moorhead

nd

Hyde.

M r.

iller:

h y. our

onor.

Their

own

ffidavits

how

hat

Moor -

head nd

yde

ere

h e oint n-

ventors.

I he

ourt: f unningham

ells

them

or

yde,

e

s

ort

f

ec-

ondary

nfringer.

M r. White:

r.

oorhead

ells

only

h is ow n ulbs.

yde

and

Moor -

head eparated

n

he

pring

of

ast

year.

M r.

lum: ay

ay ew

words

your

onor,

n

egard

o

he

ther

defendants?

M r.

iller

to

M r.

lum):

as

just

oing

o

ake

hat

p

ith

h e

court.

To h e Court): n

egard

o

th e Hallcr

Electric Co.

and

G.

F .

Hal -

ler, r. lum

ere

epresents hose

tw o efendants. hey

av e

ittle

retail tore own ere n Market

t.

in

hich

h ey ell lectrical ppli-

ances, nd mong

other

hings

h ey

have

ecured

hese ulbs

nd

old

them, nd or

hat

eason

h ey

re

joined

n

he

uit:

but

nderstand

that

h ey

av e

iscontinued

elling

th e

ulbs ince h is uit was rought,

and hat hey

do

ot

ntend

o

ell

an y

more

f

hem ntil h is

matter

has

been

etermined.

hink hat

as

to hem mall ond, say

in h e sum

of

500,

ould robably over

h at

th e

ourt

ias

in mind. ut

s

o "

the

other

efendants, oorhead, un-

mngliam nd

yde,

nd he udio-

Iron ales

Company,

hink hat

h e

bond

gainst

hem

ought

o

e

n

sufficient

amount

o

show

hat

h is

s

really

erious

atter

nd

ot

mere atter f aper nd

nsignifi-

cance.

nd

hink hat

ond

f

$10,000

ould

ot e

xcessive,

e-

cause

eally think that we

have

us-

tained

more amages h an

hat.

M r. White:

f the Court lease,

s

showing

h e

isposition f ounsel

c

ask or

xcessive onds,

ill

ay

that n

he

herman Clay

ase

oun-

se l

sked

or ond f 00 ,000 ol-

lars,

nd

our

onor

ranted

ond

of

$5,000.

M r.

M iller:

ou

an't

raw

nalo-

gies

f

hat kind.

1 lie ourt:

uppose

ounsel s

merely eferring

o

he eneral en-

dency

f

attorneys

o

xaggerate.

M r.

iller; urthermore,

ounsel

is

wholly

mistaken

n egards

o

ns

facts.

onsented

o

h e mount of

th e

ond

n he

herman

Clay

Com-

pany case. he case where he $500,-

000

ond

as

sked as n he Co-

hmibia

Graplioplionc

ase.

M r.

White:

hat

s

ll

he

ore

favorable o us. because the Columbia

Graplioplionc

ompany

s

arger

company

an d old millions

of

devices,

and

n

hat

ase your

Honor nly

e-

quired a bond

f

$5,000. s I

ay

this

is

mall

usiness

arried

n y

Moorhead nd Hyde.

i

he

Court: ill

equire ond

at he ands f M r.

Hyde

n he um

of

$4,000,

an d lic

am e in

h e

ase

f

M r.

oorhead;

nd

rom

r.

un-

ningham

a

bond n

he

um

f

$1,000.

1

on't hink he ther alls or

bond,—that

s

he

allcr.

M r.

iller; uppose h e rder

will

e

n h e sual

orm.

T h e

ourt:

nless h e onds are

given

ithin ertain

eriod, n n-

junction will ssue.

M r. hite: sk

hat hat

eriod

be

easonable

ime—for

ive

ays.

T h e Court: ery

well.

M r. Miller:

n

egard o

Cunning-

ham,

would

ike

t

nderstood

hat

if an

obtain

ata

howing

that

our

damages

will

be

much

arger than he

amount

f

he ond

s

ixed y he

court, that may make a motion hat

th e

mount

of

h e

ond

e ncreased.

M r. White; hat

s

ouble

iabil-

ity,

unningham

imply

andles

he



PACIFIC

ADIO

EWS

1 3

bulbs made by Hyde, nd

yde will

be nder

arge

ond.

T he ourt: hat ay e nder-

stood

as

to

all the

defendants.

f you

can

furnish

me

with

data

showing

that

your

damages

will

not

e

overed

by

th e onds

s

ixed,

will ntertain

motion o ncrease

he

everal

amounts.

Since he bove ecision,

De or-

est

as withdrawn he

riginal

om-

plaint

n

hich

e lleges nfringe-

ment

n

ll even

atents

nd

as

filed

ew omplaint,

n

hich

e

asserts nfringement n ne

atent

only.

ad

h e

ase

een eft

n

he

original orm ome ery

nteresting

questions

would

av e

een

iscussed.

FIven

s

t

s,

a

very elicate point s

to

e

ecided,

hat s

h e ifference

between aseous edium

nd

n

Electronic mission.

e

Forest

ays

in

h e atent po n hich

e

laims

infringement,

The

bjects

f

my

n-

vention are

o

ncrease h e

ensitive-

ness

f

scillation

detectors

ompris-

ing

n

heir onstruction aseous

medium

y

eans f

he

tructural

features

nd

ircuit rrangements

which re hown erein."

In

he

lectron elay

we laim

modification f h e ure electron

ur-

rent

lowing

between

he

ot

athode

and he

elative

old

node

by

means

of

rid

nterposed etween he

cathode

nd

node.

T he

ifference etween

he Audion

as atented y e

orest nd he

Electron

elay

an

e

emonstrated

practically

n

h is

manner:

If

a

De Forest Audion is exhausted

to

th e

degree

of

vacuua

o

that which

th e

lectron

elay s arried, he re-

sult

s hat he Audion s

o

nsensi-

tive that

it

may

be

called

in-operative.

T he ame applies

to

the Electron R e-

lay

h en

xhausted

o

he

imited

degree o

s

o rocure aseous

medium

s atented

y e orest,

th e Electron elay

n

hat

case

being

in-operative.

W e

can

produce

any

number

of

R e-

lays hat isplay

ractically

he ame

operating

haracteristics. his

s

impossible

with

h e udion.

In he

lectron

elay we ave n-

corporated etals which nvolve h e

theory f

hoto

lectric ischarge.

W h a t

part

h is

discharge lays

in

h e

operation f

h e ube

s xceedingly

complex nd ather entative. ut,

if

he late

nd

rid lements re

manufactured

f

other materials

hat

occupy

ifferent

ositions

n he

Electro-Chemical eries,

reat

if-

ference n he perating

haracteris-

tics

s

bserved.

There is no doubt that

the

Electron

Relay

nd

he udion

iffer ssent-

ially n

h e ode

f

operation,

ut,

it s

elicate

matter

o

ecide n-

asmuch

s

we

an

detect the

electron

only

y h e ffects roduced y t.

RADIO CONSTRUCTORS

LEAVE

M A R E SLAND

T h e

radio

crews

amed

for

installa-

tion

f

he ew

juipments

at

oint

Loma nd ureka aval adio

ta -

tions will

eave

Mare

sland

ovem-

ber

7. en

en

ill e ent o

equip th e Pt. Loma station, while

ive

will

be

sent

o

Eureka.

Among

he

ngineers

ppointed

o

install he

ureka et,

s

r.

.

.

Hubbard, ormerly f

he

arconi

Construction

epartment

n

ax

Francisco

nd

ho

as

een

n

he

employ

f

he

are

sland

adio

Laboratory

or

many

months.

EXTRA

COPIES

OF

THIS

M A G A Z I N E

Extra

copies can be

purchased from

th e

ublishers at 0

ents

per

copy.

Only

a

very

limited umber emain

on and

nd

ou ill ave

o

ct

quickly f ou

ish

o

btain xtra

copies

f

this ssue.

All subscriptions

will ereafter

start

with he urrent ssue; o ubscrip-

tions will e tarted

with

ack

um-

bers.



Sealing

ke Radio

of

Belligerent

Merckantmen

B y

V .

L.

Woolman, lec.

st

C.,

U. .

.

Th e

ethod

f

caling

he

adio

sets

n

h e hips

of

he elligerent

nations when hey enter h e harbors

seem

o e

ittle

nown

ven

mong

th e

operators

of

our

coast. his

arti-

cle

will outline the duties of th e oper-

ator n

neutrality

uly.

T o reserve

ur eutrality very

ship elonging o h e elligerents

M r . . ..

\

.uilman

at

he

ey

f a

Radio

et lioard

ne

f

fm-le Sam's Warships

must

e oarded mmediately n

ar-

rival nd

h e

adio

ealed

n laces

where

it

would

be

impossible

to

either

receive

or

ransmit without reaking

a eal; h e

enalty

f

which

s ery

severe

nd

ight

n

xtreme

ases

forbid h e

learance

f he essel

at

fault.

During th e

time

th e

writer

has been

on

eutrality Duty only

Japanese

and

British

essels

av e

rrived

n

an

Francisco;

lthough

ne erman

steamer, he Serapis." as een n-

terned

ince

h e

utbreak

f

h e

war.

The manner

in

which

h e

apparatus

is

sealed

must

of

a necessity

vary with

th e

ake

f

h e

ets.

here

lso

seems

o

e

difference

n h e

meth-

ods

f

h e

fficials

of ew

York

nd

those

of

this

coast.

For

instance

when

a

essel nters ew ork arbor

t

is

oarded,

h e

aerial

owered,

h e

i-

ta l parts

of th e receiver

and

ransmit-

ter ealed,

and

he

ffice

tself ealed

against admittance. n S an Francisco,

which

ery

ortunately

s

ituated

ar

from th e present

scene

of warfare, th e

apparatus

s

caled

s ecurely;

ut

th e aerial

is not

lowered or

is

it often

found

ecessary to

ea l

h e office.

T he

ritish

essels

which

av e

n-

tered

an

rancisco

ave s

ule

carried some style of th e

ld

Marconi

set.

although

ew arc

roud

osses-

sors

of an old

style

Telcfunken

equip-

ment.

he sealing of th e

ritish ves-

sels s

sually

ery

imple s

hey

carry heir

otor-generator,

rans-

former.

park ap ,

ondenser,

he

aerial onnection nd

ll

pare arts

in

mall loset.

he

erial

s

is -

connected nd

grounded, th e motor is

disconnected

r

hort-circuited,

nd

both ets

of

ead phones

re laced

inside he loset

nd

h e

oom

s

sealed.

The

Japanese

vessels

carry

a

system

which hey

laim

or heir wn

nd

is

known as

h e "Tcishinsho System."

The

erial

onnection

escends

hru

th e

oof

f

h e

ffice

hru

eavy

porcelain

nsulator

nd

s

onnected

to h e

ending nd

eceiving

witch

by

a

eavy

brass

rod

which

s

remov-

ed nd

h e verhead onnection

scaled. he

ransformers

rc iscon-

nected nd

hort-circuited

nd h e

primary

of

h e eceiver

s

rawn out

as

f

or

n

xtremely oose

oupling

and he ead phones

ealed

o h e

primary

n h is

osition.

W h e n

h e

ealing

as een

om-

pleted

t

s

nspected y h e

eutral-

ity

fficer

ho

s

n

fficer n h e

United

States

avy.

he

ship

is

also

boarded

nd

nspected

at

nexpected

periods

y h e

Neutrality

Officer.



TKe

End

of

ke

Bear

B y

H . W.

Underwood

• •

'

A

GIANT

COMHKR

W RE A KI N t

Amidships,

ust

here h e etal

keelson lakes th e

strain of

th e

engines

and

oilers, h e Bear" roke n wo

on

ov. 6th, ccording o onfirmed

>.v 14A

.

.\i

<

HIGH AN D DR Y

dispatches ro m ureka.

This

topped

very suddenly a promotion scheme

fo r

th e

alving

of

th e

vessel.

he

"Bear"

i

AVOC

WITH

H E

BEAR"

ran

ground

ear

ureka n une

14lh,

916, t 0:22 .

.,

hus dd-

ing

nother isaster

o

h e lready

overcrowded is t f

acific

oast

tragedies.

'The irst

distress

ignals

ent

ro m

th e essel

were

icked p y

Opera-

to r

W illiams at

h e

ureka

Marconi

station.

he

operators

on

he

Steam-

er Grace

ollar"

nd he . . .

"Oregon"

lso

eard

h e

all

or s-

sistance

nd

at

nce

tarted or h e

scene f

isaster.

ull

ccount f

th e

wreck

has

already

een

ublished

in

arious magazines but little,

f

any-

thing, was aid

egarding

h e alving

operations hat

ook

lace

uring

he

previous

months.

arconi

Operators

Grabow

nd

oods,

f

he

Bear,"

returned

o an rancisco. he

wrecking teamer

laqua"

f

he

Union ron Works was

ent

north

o

carry

out

he alving

operations.

As

s

lways

h e

ase,

h e ncident

was

oon

orgotten

y

h e

eneral

public

and

but little

attention

was

paid

to

th e alving

operations.

r.

H .

W.

Underwood as

ssigned o he

"laqua"

which

eft

an

Francisco

on

th e

night

f

June

5th

nd

rrived n

th e cene f

h e

wreck

n h e morn-

ing

of une 7th. o im e was ost

in

aying

h e

ooring

nchors

nd

placing

he owing

ppliances

board

th e

"Bear."

fter

en

ay s

f unsuc-



16

PACIFIC

ADIO

EWS

cessful fforts,

during

which

im e

h e

sand

hoaled

p

o eight f en

feet

n h e eaward ide f h e hip,

th e laqua"

was

rdered

o

eturn

o

S an

rancisco.

On

une 8 th he

alvage

pera-

tions

were esumed

po n

he

rrival

of he

ritish recker, Salvor" f

th e

ritish

olumbia alvage

om-

pany.

Upon

h e

arrival

f

h e laqua" at

S an

rancisco, r. nderwood as

assigned to th e "Bear,"

traveling over-

land nd

e-installing he

quipment

which

ad

been

emoved

n

h e

mean-

time.

e

rrived

t

.

m.

n

uly

7th

and

ad

h e

main

et

in

operation

at :30 . ., h is eing

n

ccom-

plished eat f o

ittle

mportance.

Although h e

water

had

looded

the

engine nd boiler oom

o

onsid-

erable

epth,

t

ad

ot yet eached

th e

ynamo

room

r h e onkey

boil-

er .

hus

th e main set was placed into

immediate

peration

nd ommunica-

tion

with

ureka

was

nce

more

s-

tablished.

As

he

ureka tation s

ituated

but

5

miles

ro m

he wreck,

t

was

unnecessary o se h e

main

et

nd

for h is eason h e uxiliary et was

resorted

o

nd

endered

atisfactory

service fo r many weeks.

n

h is

man-

ner t was nly

ecessary

o

un he

ship's

dynamo

every

ten

days

in order

to

e-charge

he

torage

ells.

he

traffic with the

Eureka

station

and th e

steamer Salvor"

an

nto

h e

hou-

sands f ords ac h onth ut o

delay

or

rouble f any

ind was

x -

perienced

with

he spark

oil

or

other

apparatus.

A

ew words n egard

o

he al-

vage operations

would

probably

prove

interesting o

great

many eaders.

In h e

ase

f

h e "Bear"

hree

arge

anchors

ere

laced

pproximately

1,500

feet

from h e

ship

and ro m

one

to

wo undred eet art.

arge

steel owing

ables

ere ed

ro m

each anchor

o

he

tern

of he

h ip

and

hence hru ystem f locks

and tackles

to

he

team

winches. An-

other teel able was ttached o

he

port bo w and hru lock nd ackle

to

a

large

donkey

engine

on th e

beach.

On

account

of

th e

heavy

swells

which

arc

o

ommon

n

he

endocino

coast,

preparations

for

heaving

on he

numerous ables were not ompleted

fo r nearly

tw o

months,

it being neces-

sary

to

await

th e

igh

ides

and om-

plete

h e argo ischarging.

With

he ombined fforts f he

"Salvor" and wrecking appliances, h e

vessel

as

oved

ut

wenty

eet,

th e

sand

soon

anked

th e

ship

in

such

a

osition

hat

h e

was

igh

nd

dry

on

h e

each.

he ext attempt o

float th e "Bear" was also unsuccessful,

large

an d

umps

eing

mployed

o

wash

h e an d way

ro m

he hip.

T o cap th e climax a heavy nor-wester

se t n n h e

night

of

Sept.

0 th

nd

obliterated three weeks'

work

in

a

sin-

gle

ight. ourteen ays ater h e

powerful eas ounded he

h ip

with

such

errific

orce

hat

ole

wenty

five

eet by twelve

eet was

orn

nto

th e

lower

old

near

th e

ngine

oom,

th e

an d

uickly ashed

n

nd

ll

means

of

aving h e h ip were

ban-

doned.

A ireless

operator's ife

board a

wrecked h ip

s

ot s

astidious

as

it

would

probably

appear,

but to

those

wh o

are

willing

to

isregard

uch

it-

tle

nconveniences

s

aking

our

ow n

unk,

leaning

your

oom, ook-

ing

part

of

your

meals,

packing

water

up

he many

ompanion

ways, opy-

ing press

during

th e wee

hours

of

the

morning,

nd

eing

llowed

o eave

th e ship for

only tw o hours daily, and

trying o walk n

ec k

ith 4

degree is t

here

re

any ew nd

varied

xperiences o

be

gained

while

doing

alvage

work.

T h e

extreme

ospitality

of the

peo-

ple

n

h e icinity

of

he wreck will

never

e

orgotten s

ell

s h e

many

appy

ours

hat

ere pent

with

he most

congenial re w

imagin-

able.



PACIFIC

ADIO

EWS

1 7

A M E R I C A N S

N

OKYO

EN D

WIRELESS GREETINGS TO

PRESIDENT WILSON

T he

an

rancisco-Japan

ireless

service

was

stablished

n

he

morn-

ing

f

ov.

6th,

y

he

arconi

Wireless

Tel.

Co. essages were ex -

changed

t

even

'clock,

acihc

Time,

avorable

tmospheric

ondi-

tions

prevailing. message of greet-

ings

was

ent

ro m

resident

W ilson

to

h e

mperor

f Japan,

ffering fe-

licitations on he

ew

means

f

om-

munication between

he tw o countries.

T he

Marconi

tations

at

M arshalls.

near olinas, at

ahuku,

Hawaii, nd

Funabashi, apan,

ere

sed

or

h e

initial

ervice.

he message

was e-

layed

by

th e Hawaiian

station

but it

is

expected

hat

irect

ommunication

with he apanese tation s nly

matter of ime.

r.

G.

. DeSousa,

Traffic

Manager

of

the

Marconi

Wire-

less el.

ompany,

nd

r.

. .

Ginman,

General

Manager

f

h e

a-

cific

Coast

division,

supervised he

in-

auguration f h e ervice.

Jiro

anaka,

irector

eneral oi

posts

nd

elegraphs n apan, nau-

gurated

h e

ireless

ommunication

from

h e apanese

tation

y

sending

three messages o he United States

via h e M arshalls

tation.

he wire-

less

elegraph

lant

sed

n

ending

messages

ro m

he

Japanese

ide

was

erected rimarily or h e se f he

Japanese

avy

ut

t

s

oped

y

Japanese

fficials hat egular ound-

the-globe ommunication ill e s-

tablished

at

the

conclusion of th e war.

A

message of greetings

to

President

W ilson was

ent

by

h e

argest

gath-

ering f

mericans

hich

as

ver

assembled

n

okyo. he

eeting

was

eld

o

elebrate

he

pening

f

th e

ew

ommunication

ervice, he

message

o

h e resident

xpressing

th e

esirability

f o-operation

e-

tween

h e wo

nations

fo r

the

promo-

tion

of

ommerce

nd

ightening h e

bonds of friendship.

INSTITUTE

F ADIO

NGI-

NEERS

RGANIZES AN

F R A N C I S C O

R A N C H

At eeting

f

he

nstitute

f

Radio

ngineers

eld

n

he

Mechan-

ics'

uilding

n

an

rancisco.

ues-

day

vening, ov .

st,

t

:30

o'clock,

h e

ecessary teps oward

organizing

an

rancisco

ection

of h e

nstitute

ere

aken.

Announcements

o

h is ffect

were

sent

o

ll

members

esiding

n

an

Francisco nd icinity, equesting

large

ttendance

n rder

hat

h e

local

ranch

ould

e

rganized.

T h e

ames f 3 5 members re ec-

essary

n

order

o

organize

ection,

th e

full

number of endorsements

were

received

nd h e rganization f h e

section

ecame

eality.

M r.

.

ord reaves, ocal

.

.

Radio

nspector,

cted s

Secretary-

Treasurer, hile r. W.

.

ans-

corn

f h e ational adio

Telephone

Company

filled

the

office

of

Chairman.

An

lection

f

fficers

as eld.

M r.

.

W. anscom eing

lected

Chairman or

he

eason,

hile

r.

V. ord reaves

was

lected

ecre-

tary-Treasurer.

M r. . G. Aylsworth, f

he Ayls-

worth

Agencies n h is

ity,

was h e

successful

andidate

or

he

xecu-

tive

Committee.

It

as

ecided

hat

eetings

re

to

be

eld

monthly

n

h e Mechanics '

Building,

h e eeting all eing t

th e

isposal

f

h e nstitute

without

charge.

T he

onthly eetings re

o

e

held

n he

uesday vening

f

h e

month

earest

he iddle f hat

month. nnouncements

to

h is

effect

will

e

ent

o

members

monthly.

For

he

onvenience

f

embers

who

eside

n he ay Cities

nd

are

unable

o

e

resent at h e ppointed

meeting

our,

rrangements av e

been ade or inner

ervice

n h e

clubroom.

(Continued

n

age 8 )



Spaskes

of Static

MALICIOUS

NTERFERENCE

(From

an

Amateur's

Viewpoint)

There's

a

station

ut

of

Crocker

Tract

that

holds the air all night,

H e always tells

h e

kids"

o break

and

early

tarts

a

ight.

He's

lways

starling rouble, e ever racks mile.

H e tells

you

with h is

furious

spark,

o

keep

out

for

a while.

T h e

amateur

s

rightened

tiff,

and

ashes

for

h is

ey,

"O.K., O ld Man", he answers, "A good boy I

hall

be".

T he

Commercial

M an

forgets th e

days

when h e once was a

H e

ever

thinks

of

looking back,

for

he's

a

grown

p

man.

'ham"

There

used

to

be

a

im e

when

he

was

once

a

kid,

N o better than

h e

est

of

us,

malicious

things he did.

H e aughed nd elled uite oudly when e was

old

o uit,

H e

kept

right

on

a-sending

with

h is

sassy

little

"mitt".

And

ow

he

often wonders why

the kids o as

they

please,

They

keep

on

nterfering,

like

a

bunch

of

busy bees.

And when

h e

asks them

fo r

their

call,

they

jump

right on their

key,

They

ell

h im uite

olitely,

"M y

all

s

.

V ,

D."

»

IDA/T

nuth-

C

IN

©

€>

COMMERfl

IAL STATION)

T H i O

BSIILT OP N T K R P K R E N C E



PACIFIC

ADIO

EWS

1 9

JOHN H A M M Y ' S FIRST C O M M E R C I A L EXAMINATION

H e

sat

before

h is

tuner,

a stogie in

h is

mouth,

T he

foncs

lasped

ightly o is ars, istening o he

outh.

H e

copied

Point

Arguello,

NPL

came

strong,

B ut

Johnny's

yes grew heavy and e slept right

n

long.

H e

ad

a

dreadful

adio

Dream, th e kind

hat ne'er comes

true.

"To the Custom House 'll o," ays h e, "and how what

an

o."

"The irst Commercial Ex 'll ake, 'm

ure

cannot

ail,

T he

ercentage

hey

will give

me

will

make h e

est

ook

ale.

A reference book was opened, its

contents

read with

care,

"I

know that

dope,"

he

shouted,

as

h e

rose

up

from

h is

chair.

A axicab e

mounted,

he

Custom House

is

oal,

"Stop own he treet," e rdered, close o hat wireless

ole."

T h e

Taxi

Driver

saw

th e

pole,

and

the

Custom

House

white

walls,

"Two dollars,

lease,"

e

murmured,

but

ohnny Haramy talls:

"I

cannot

pare

t,

river, ave but ifty ents,

The

Notary

Public must

pa y

fo r

legal documents."

"But listen, T ax i

Driver, the bill

hat

hall

ay ,

Will

bringyou more than

what

you

ask,

some

bright old Summer

day,

A millionaire I'm bound to

be,

brass buttons I

hall wear,

Enormous

pay

I

hall

receive,

your

bill

'll

pay

uite

air."

H e walked into

the Custom

House,

and questioned th e

Director,

"What

levator

must

ake

o

h e adio

nspector?"

"N umber

our,"

e

houted;

ohnny

rotted

n,

H is

face

grew

white with

fright,

as th o of

some great

sin.

T he

nspector's

office e

entered, with

xpressions

f despair,

"A n pplication lank,"

e

whispered, s e at own n hair.

His

excitement

grew intense,

his

face grew aler et,

T h e

pplication inished,

h e peed

est e

must

et.

T h e

nspector

viewed

im

iercely. Look

here, you Ha m , e aid,

"Twenty

words

I'll send

you,

to

copy in

your

head."

"M y

nly means

of

copying,"

aid ittle

ohnny Ha m m ,

"Is

on a piece

of paper, that's th e only way an."

"Don't

talk so

much,"

th e

Inspector

said,

as

he

grasped

the

buzzer

key,

'If

you have

your

doubts

of passing th e EX ,

at

school

you

ought to be.'

John

Ha m m y trembled fiercely, h is end

ad

ome at

ast,

"I'm

oing

home

to

study

first,

fo r

another

chance

'll sk."

"Three

months

from

ow

'll

ome

gain,"

e

rembled

s

e

poke,

H e

left

th e office in a hurry,

h is

heart

was nearly broke.

"WAKE

UP",

somebody

shouted,

as h e tumbled ro m

is

hair,

"It's time

or

you

o go to school," said

a

voice

ro m

up

h e

tair.

B y "ONE WHO N O W S . "



20

PACIFIC

ADIO EWS

v

.

r<

j

T

? .»

Wm

THE

"PROVIDENCIA"—"HUMBOLDT"

DISASTER

W

1

Ti

16

r^nrvu'"?

cco

"

nt

c

0f

he

Humboldt"

isaster

was

elated

y

r.

rint,

.„h

0y

ecretary-1

reasurcr

f

h e

an rancisco adio

Club

and

employed

by

he Haller-Cunmngham lectric Co., of

S an

rancisco

as

wireless

operator

board

h e

.S .

Providencia."

ormerly he Olson

nd

Mahony

he essel was

quipped with

4

.W . Hy-Tone

uenched

ap

transmitter

and

h e

tandard

cabinet

ype

HALCUN"

eceiving

et.—Ed.|

W 'e eft

an

rancisco on ri-

day, August

25th.

or

Fort

am-

hie,

Washington, to

load props'for

Mexico. pon

earing

ort

1 ownsend

he

eather

ecame

very

foggy,

so we

laid

n

that

port

from

.

.

ntil .

.

n

August

29th.

t

6

a.

m. we pro-

ceeded on our

way

o Port Gam-

ble.

he

eather

was

till

ery

f'JffS.v.

I

as tanding n he

fter

deck

hen

eard

hree

lasts

from

our

whistle,

and

he engine

bell

rang.

ooking forward I saw

the

Humboldt"

coming

hru

he

foR-

rasped he

ailing

nd

waited

or

her

to hit. t seemed a

full

minute

before

he excitement

happened,

ut

t

ast

he

ame

crashing into our

port

bow,

dent-

ing_

five

lates.

t

as

xactly

8

5

a. m. he

mpact

threw

he

'umboldt" apart rom s, only

to

ave

er come crashing

ack

again nto

our

port

ide, earing

off

the

guard.

1

he

ife

boats were

mmediate-

ly swung

out

and everybody was

ordered n

he

oat

eck.'

he

captain, ho

as

n he ridge

when

he ccident happened, or-

dered e o ind ut ow he

"Humboldt"

as.

alled

er

and

asked

how

hey

were

making

out. he operator on

he

Hum-

boldt"

WHX) aid e id ot

know

ow

hey ere, hat hey

h ad ll he ife boats swung out

and

or

us o stand by. e

also

asked

ow e

ere.

eplied,

saying

that

we

were

all ight and

would

tand

y.

eanwhile

ll

the boats

in

he

vicinity

were

ask-

ing

What's

up"?

We

swung around

and

stood by

for

about three

minutes,

when

the

captain

yelled

hat

hey

were

not

taking

ny

ater

nd

ere ll

right.

The

"Humboldt's" bow

was



PACIFIC

ADIO

EWS

2 1

badly

damaged

and her stem was

completely

roken off.

She

proceeded o

Seattle

under

her

own

steam,

the "Providencia"

following,

s

onvoy.

he

"Humboldt"

as ound

or

Alaska

with orty passengers and

a

arge

mount

f

reight.

e

arrived n

Seattle

at p. m.,

and

after

wo

eeks'

tay

or

e-

pairs, proceeded o Port

Gamble.

LACK OF

FUNDS

PREVENTS

LIGHTSHIP

NSTALLA-

TIONS

(From

lie

,

.

Call")

The

nited

tates

ife

aving

service

and he

ederal adio

er-

vice

ill co-operate o eport by

wireless

he arrivals

of

ncoming

ships

off

he

heads and ave

he

customs and mmigration depart-

ments uch asted ime

nd

money

f

ongress

an

be ade

to see

he

economy of spending a

small

ppropriation

or

quip-

ment.

Congress ill

e

sked

t ts

next

session

o provide

money

o

install

nd

perate

ireless

plant

on he San Francisco

ight-

ship,

nd

o

nstall

eceiving

plant

n

he

eadquarters

of

he

radio

ervice.

Despite he se

f

ireless

these

days,

he

ime

of

arrival

of

incoming

ships is

uncertain.

Even

the

ig

assenger

iners

o

ot

arrive

as

predicted.

There

are requent imes when

the ntire

oarding

taffs

of

he

customs

and

mmigration

depart-

ments. umbering

ome

hirty

men,

limb

ut

f

heir

eds

half

our

head

f

he un

nd

get down o

Meiggs

harf, ans

breakfast,

t

aybreak

o

oard

an xpected

iner,

nly o

ait

anywhere

rom

wo

o ix

hours

until

t

eally

nters he

arbor.

Then here

re

hips

ithout

wireless hat

re

lways

ncer-

tain. ith ireless n he

lightship,

en

iles

utside

he

heads, a

essage

an

e lashed

in

hen

ny

hip

tarts

or he

Golden

ate.

his

ould

ive

an

our's

ertain

otice

f

ts

arrival.

The

ife

aving

ervice

ants

to

ut

lant n

he ightship,

but

t hasn't the money.

t has a

radio

utfit

n

he

ender

Se-

quoia,"

ut

here sn't

ven

fund o pay an operator, o t s

idle. he

opinion

is

that

the

pro-

tection

o

ife

which

he

wireless

would

give

would

alone

be

worth

the

expense.

RADIO

STATION

AT

THE U .

C.-

WASHINGTON

FOOTBALL

G A M E

Under he upervision

of

h e Uni-

versity

f alifornia adio lub

complete

ransmitting

nd

eceiving

equipment

was et p n

he

ield

at

th e

ootball

ame

eld

n

erkeley,

Calif., etween h e

niversity

f

Washington

nd

he niversity

f

California, n ov. 8th.

T he

ransmitter

used

onsisted of a

five ilowatt, ixty ycle quipment,

with

ixed

park

ap ,

operating

n

five

undred nd

hirty

eters

the

standard

press wave

length).

he

re -

sults of each

quarter's plays

were

sent

out

broadcast,

and also the

inal

score

at

he nd

f

he

ame.

he

ignals

were icked p y any perators,

who were nable

o

attend

he game;

most

operators

within

wo

undred

mile range

eing able

o

pick

h e

ig -

nals up . he

apparatus

was

operated

by

essrs. .

. undt,

.

.

Maynes,

G.

F. McMullen and

W.

Le-

land.

THIS

A G A Z I N E

WILL

BE

N

S A LE

on

h e

ifteenth f h e

month

n

an

Francisco

nd

will

e

eady or

is -

tribution n

or

about

he

1st

f

he

month n

astern

ities.



22

PACIFIC ADIO EWS

pacific \a6lo

The

irst nil nly ireless

Magazine

ublished

n

th e

Pacific

Coast

H .

W . DICKOW, Editor

P . . E N N E R , usiness Manager

$ 1 . 0 0 per

Year

n U.

S.

and

Mexico

$ 1 . 5 0 per Year I n

oreign

Countries

Single Copies, 0 Cents

Photographs, ood rawings

nd

articles are

highly

desirable.

Pacific Radio

ew»

5 0

Main

t.,

an

rancisco,

al.

Vol.

I

A N U A R Y , 1917

o.

EDITORIAL

The object and urpose of he

Pacific

adio

ews

as lready

been

placed

before

you,

and ittle

remains

to

be

said

on

this

subject.

As his

agazine

oes

o ress,

an

normous

mount

f

orre-

spondence

s

eceived

rom Radio

Engineers

rom

ne nd f

he

Pacific

Coast

o

the

other.

aith-

fu l upport s promised by hese

men and hey

ave

rged s o

make

the

Pacific

Radio

News"

a

monthly magazine, due to the fact

that

n

nlimited

upply f

he

most fascinating news is

available

in

his

part

of he country. he

more

hat

hey

ear

bout

his

publication,

he

ore hey

hink

of

it,

and

the greater support they

offer us. his is

what

we

need—

co-operation. We

need

the

assist-

ance of

every

adio

enthusiast on

the

acific

Coast.

he humblest

amateur may

be

n a

position o

support

us,

as

well

as

the

highest

class

f

adio

ngineers.

his

magazine

had

o

be published;

we

have easons or making

his

ib-

eral statement,

and

within a

short

time e ill ell

ou

ust what

our

reason

is .

his

great publica-

tion ill estore

he

ld-time

spirit

n

he

acific

oast o

surprising

egree.

he

ublica-

tion

s

ased

n

BSOLUTE

FACTS;

he tatements

ub-

lished

will be

authentic

n

all

e-

spects.

We ill

publish

ews hat no

other

adio eriodical n his

country an,

r

ill, ublish.

They

ave

easons

or

ot

ub-

lishing

certain

articles

which

may-

do hem

reat

njustice.

he

"Pacific

adio

ews,"

will

give

you

hese facts,

hey will

be writ-

ten so

that

everybody

can

under-

stand

hem,

othing

will

e

eft

undone

o ake his agazine

prove

ts

orth

n

he

ireless

field.

We ave epresentatives n

numerous

ities n he acific

Coast.

ur news will

not

be local

as

egards

he

city

n

which

he

magazine

s

published, uite

he

contrary,

e ill eep

ou n-

formed

f

very otable

tep

made

in

the radio

field

in this part

of

he

country.

y

so doing, we

are ot pposing

ny

xisting

magazines,

s

s

he ase ith

other adio ublications. he

news hat

his

ublication

ill

give

you

will

be

something

added

to what you ave,

t

will e

he

news

hat

ou esire ost,

e

can give t o

you, and t

shall

be

published n

an unbiased

manner.

The irst ssue

of

his

publication

may

ot

eet

he

pproval

f

most of

our

eaders, but

we

want

you o lace he tmost onfi-

dence

n

us.

I housands

of

adio

enthusiasts

were

rafted

y

ell

nown

radio

publication

some

years

ago,

bearing ame

imilar

o urs.

Perhaps thousands

of

enthusiastic

experimenters

nd perators

e-

ceived ut everal copies f his



PACIFIC

ADIO

EWS

2 3

publication,

that

was the

last

that

was ever

heard

of

it.

e

may be

enforcing our principle a little too

strong

for

a

newly organized

pub-

lication,

but,

as

we

stated

before,

we

re

oing

o

ive

ou

he

FACTS

and

only

the

Facts. ew,

if

ny,

adio

ublications

ave

started n he ield with uch

an

interesting

uture

as

we

have.

The

San

rancisco

Radio Club

is

one of

the

best

organized

clubs

in the country,

and

it is this great

prganization

hat

s ublishing

the

Pacific

adio

ews".

e

therefore ave he

eputation f

every

member

of

he club behind

us, nd

e

an ssure ou hat

an

unlimited

supply

of

news can

be

urnished o our readers. ur

next

ssue will

contain a

number

of

articles

hat will et

he

great-

est Radio

F.ngincers

n his coun-

try hinking; et

hey

ill

e

written

so

that

everybody

can

un-

derstand

hem.

If we

eceive the support of the

required number

of

experimenters

thruout

he

country,

he Pacific

Radio ews" ill e ublished

monthly and he size

and

quality

will

row

with

urprising

peed.

We would ike o

have

you

bear

in

ind hat his ublication s

not

strictly

devoted

o

either

he

commercial

or

experimental adio

field, t ill e

agazine

hat

can

e

ead

ith

nterest by

ll

classes

f

adio

en.

ertain

existing ublications re

ar oo

technical

or reat

mount

f

radio enthusiasts;

others are ust

the

opposite,

far too

uninteresting

for

he

dvanced

lass

f

adio

men. ur agazine ill e

classed

with

neither,

our

principle

is decidedly different

and

the

only

way

o prove

his statement

s

o

have

ou

ead

his agazine

every

ime

t

s

published.

riti-

cism's will be plentiful as

egards

the principles

of

his publication,

and

n

order

o publish

a

maga-

zine hat will

eet

he

approval

of

every eader, we

would

be at-

tempting

omething

eyond

ur

means. e

will

always appreci-

ate uggestions,

we need

hem

n

qrder

o

lease

he

ajority

f

our

eaders,

nd,

herefore,

e

trust hat ou

ill

ot

ad

o

comment n

his

ublication.

Each

and

-every comment

will

be

considered,

he magazine will

m-

prove. and

inally

we

can publish

a eriodical hat ill

eet he

demand

f

lmost

very

adio

enthusiast n he United States.

EDITOR.

SIMPLICITY

Wireless

perator

board

h ip

places

ead

elephone

n nquisitive

passenger

and

says; Here, M r. rav-

elogue,

isten

o

ireless message.

Do

yon

ear that

weak

buzzing?

M r.

Travelogue: Yeah,

O h

Yeah,

yon

bet

o,

it

must

be

one f

those

Alaskan

tations

way

up

here

n

he

ic e

ields."

Ship perator, miling;

h y.

what

makes

ou

hink

o?"

M r. Travelogue: "Because h is spark

is

hivering

nd

rembling, hat

s

sure ign t

must

e

readfully old

up

here."

O LD TIMER RE-OPENS

STATION

M r.

.

. rnberger

of lameda,

Cal.. ill e-open

is

owerful

ma-

teur

tation

n

Garfield

Avenue

with-

in

a

few

days.

r.

Arnberger

is

well

known

among both

mateur

and

om-

mercial

adio

operators

on h e

acific

Coast

nd

is

tation s ithout

doubt

ne

f h e

eatest

nd

ost

efficient

n he

West.

is

all

s

"6FA."

CLASSIFIED

ADVERTISEMENTS

In he

February

ssue

we

will inau-

gurate he lassified dvertisement

Column.

ll

dvertisements

ill

e

published

t

h e

ate f

wo ents

per

ord

ith

inimum f

en

words,

including

address.

Forms close

on irst f month receding date

of

publication.



TKe

Radio

Latoratory

of

lie

University

of

California

Ihe

cc

omp

an

ying

views

how

he

adio

apparatus

which

s

n-

stalled

n he

electrical

engineering department

of

he

niversity

ol

California, at Berkeley.

I

he

ransmitting

equipment,

as

hown

n

he photo, consists

of

two

separate and distinct units. he one

shown,

which s

of

modern

J-U?

6

'

consists

of

a

iv e W

0 0

cycle

uenched park ransmitter.

\\

ith the

exception

of the

generator,

which s a

iv e

kilowatt

65

volt

live hundred

cycle

Kilbourn

and

Clark

machine,

and

he

ive

kilowatt

open

core

ransformer,

he entire equipment was designed and

built

in

he college shops.

The generator, as above

described,

s

ocated

n

he

main

dynamo

room;

the

driving

power

being

a

25

HP.

D.C.

motor,

driven

rom

he

Campus upply,

which

also

upplies he ield xcitation urrent or

the generator. he motor

and

generator

are operated

by

emote

con-

trol devices

operated

rom he

tation

witchboard;

hus

he oisy

and

dirty motor

generator

is

excluded from

he

operating

room. he

current

rom

he

generator, broken y heavy

capacity

ey,

lows

thru

he primary of he

ransformer.

he

econdary

oltage

of

he

transformer s

1,000

volts.

he primary condenser'is made up

of

a

twelve

late eries

ultiple

onnected,

glass late ondenser

he

oscillation

ransformer

n se s built pon he general esign of a

magnified

loose

coupler.

he

primary

consists

of

ten

turns

of

/ ,

nch

aluminum

wire

wound

on

a

rubber

insulated mahogany

rame

twenty

inches

n

diameter. he secondary

s

made

up of

wenty

urns

of

^

inch

luminum

ire,

n

ixteen

nch iameter ahogany

rame

Two helices,

of the

spiral

pancake

type, make

up

the aerial inductance.

Ihe quenched gap, which s

of

a

modified

Telefunkcn

ype, was de-

signed.

after

much experimenting, n he aboratory. wenty

plates

of copper

alloy,

are

used

or

he gaps. bout

seven

or eight' gaps

n

series are used at most imes. he other ransmitter, which s

ot

shown

n

he photo, consists

of

a

plain wo KW 60 cycle

spark

rans-

mitter,

with

otary

park

gap,

giving

a

park

pitch

f

about

400

sparks

per second.

rherc

is,

at present, no provision made

n

he receiving

equipment

for

he

eception

of

undamped

waves, altho

ome

experiments have

been performed ith

ultraudion

eceivers. he eceiver nstalled s

made up of a Blitzen uner, with a galena detector, he signals rom

which are

amplified

by a

specially

designed

audion

amplifier. he n-

stallation

of an

ultraudion

eceiver is

contemplated

in

he

near

uture.

The aerial n se at he present

ime,

which s hown n hoto,

is

onstructed

f

our umber en

opper

ires,

n

ifteen oot

spreader. his

antenna uns

rom

he pole

hown n he photo

o a

nearby

building,

giving

about

our

hundred

and

ifty

eet

of

pread

to

the

wires.

The pole, which

supports

the highest end

of

the

antenna,

gives it a geometric

height

of

about one

hundred

and orty

eet.

he

free end being lower, the average

height

of

the antenna

s

only about

ninety

eet. ts

undamental

wave

ength

s

close

o seven hundred

meters.



PACIFIC

ADIO

EWS

2 5

The ground connection or he tation s ade hru ix nch

copper

ribbon,

about No. 20 gauge in thickness, which is brazed o the

steel rame

of

he

building.

he

steel rame

orms a most

excellent

ground connection.

The

best

esults

obtained

rom he

station

were noted n he win-

ter

of

1914-13,

when a much

larger

and better antenna was

in use; this

antenna

ad undamental

f

bout 10 0 eters nd

n

verage

geometrical height

of

about 50

eet.

ignals were obtained

on

he

receiver

above

described, every evening,

rom ow

power German

sta-

tions ocated, espectively, n he Caroline and adrone slands.*

Altho these

stations

were

but

20 0 or 1 5 00 miles

apart, they experi-

enced

great

difficulty

n

carrying

on communication with each

other,

yet.

at

practically all imes both

of

hese stations could be copied

at

the

ollege tation, hich s ocated

bout

C0 0

iles

rom

hese

places.

Very

ittle ransmitting has

been

done

with

he

equipment, or t

was

not

desirable to cause

nterference with

nearby

stations.

ignals

were

once

exchanged with NAR Key West, Florida). o

sending

has ver

een

ttempted

n

he resent

antenna, ut ignals rom

spark

stations on both he

Atlantic

and acific Coast tations

come

in oud

and

clear.

ignals

of

easy eadability

have

been

eceived, on

the ultraudion

above

described,

rom POZ ami

OIU,

and most

of

he

Atlantic Coast

Arc

Stations

were

copied.

'Since destroyed,

ue

o

he war.

The

Aerial nd tathm

at

he

University

f Californiu

5 .W . 0 0

CYCLE

RANSMITTER



adio

nd

Electrical uestions e

nswered

In

Tkis

Magazine?

We

hink

hat

h is

uzzling

uestion

has

een

olved

by

liminating

ll

uestions

nd

nswers

n

he

Pacific

Radio

ews".

h is

ay

e

omewhat of urprise

o

our

eaders,

but

we

av e iewed

he

uesfiions

ro m

ll

sides

and

finally

came

to

the

onclusion that

the

pace

n

this

agazine

an

e

better evoted

o

tartling

adio

news. et

his

not

e

iscouragement o

ou,

we

eel

assured

hat

ou

ill gree ith

s fter iving

he

matter a moment's

hought.

ic k p

wireless

or lec-

trical magazine, turn to the Query Department, read some

of

the questions

and

answers carefully, and then

form

your

opinion

f

his

ection

f he agazine. o ou ot

think hat most f

hese

questions

an e

nswered

by

consulting

ny

ood

ook

n

adio

ommunication?

Would ou

not

av e

our

r

ix

pages

f added interest-

ing news

in

your

magazine han a arge

umber

f ques-

tions

and

answers?

e

think

so , and

here

re he

facts:

Consider

he

umber

f

ueries

ertaining o erials,

wave lengths and range

records;

h ow many

of

these ques-

tions are atisfactorily

nswered?

ery

ew

ndeed,

s

th e U. . Govt. Asst.

adio

nspector, M r. .

W .

tone,

states.

ead is emarks arefully

and

hen orm our

opinion f

he

uestion.

[The

ollowing

omment

as

ade

y

r. .

.

Stone

t

a

pecial

meeting

f

he

an

rancisco

adio

Club.

e elivered

n

nstructive ecture n

Decre-

ment",

cknowledged

by

ll

members

s

he

best

ecture

on

adio Communication hat

as -ever

been

elivered

n

S an

rancisco.]

"The question

f

etermining

h e

xact wavelength

of

an

erial y athematical ormulas

r

easurements

other

han y h e se f a

vavemeter,

s

ne hat has

caused

reat

mount

f iscussion. he ractice f

determining th e

wavelength of an verage

aerial

by multi-

playing

its length by

3

and dividing th e

answer

by four,

is

erroneous.

"It

s

almost

n mpossibility

o

alculate he

wave-

length f

an

erial

unless t

e

ocated n

uch

osition

that o

bstacles

arc

n

he

icinity

f

h e

erial.

A ree

or

other tructure

lock

way will

av e

n

effect

n he wavelength,

h e

uy

ires, preaders

nd

even

he

ole tself

must ll e aken nto onsideration

when

uch

alculations

re

made."

Yes, here re umber f

ery

seful

nswers ub-

lished

to

ome

f the

uestions,

hey

re

f great

enefit

to

any eaders, ut oes his pply o all lasses f

radio

operators?

o, t oes ot.

he

uestions sked

originate

n

he xperimental ield nd are ent

by

men

who

want

advice

on

something

that can be obtained

from

most ny ood ook n adio ommunication. n

order

to

please

those readers

who

wish to

ask

certain

questions,

th e

roposition

as

een

placed

efore

the

an

rancisco

Radio Club's xamining

oard,

nd

ll

uestions sked

by

eaders

ill

e nswered

y

hese fficers

ithout

charge.

o

over

th e

burdensome

mailing

charges a two-

cent ostage

tamp

hould

at ll

imes

e

ncluded. ll

correspondence hould

e

ddressed

o he xamining

Board

f he . F.

adio

lub, 50 rederick t.,

an

Francisco, Cal.



PACIFIC

ADIO

E W S ' 27

HANDY

NT

WIRELESS

?)

IA

ELE-

PHONE

On arty elephone ines t s

often esired,

s

s ell nown,

to

reserve

ecrecy

etween

he

people

using

he phone.

very

handy

and

nteresting

cheme

s

shown

diagramatically

n

he

ac-

companying

cut.

1

w

111

I

i

unless

y

emote hance e

knows

he

ode,

reat

uriosity

as

o hat s assing ver he

line. his

system

s

used

by

one

of

he

arge

ireless

ompanys

on

he

oast

o

end

essages

direct rom he tation o he

office,

t having

been

ound

hat

it

s

uch

ore

ccurate

nd

rapid

o

send he business in

his

way

han t s o carry

t

on by

word

of

mouth.

The buzzer

B

s controlled by

the switch

S,

inserted

n he bat-

tery

ircuit. cross he

uzzer

contacts

he eceiver

of

he ele-

phone s

connected.

his

circuit

is broken

by

a common

elegraph

key, .

o

perate he

utfit

close he buzzer switch, hus set-

ting he

uzzer nto peration,

then

end

ith

he

ey,

s

ou

would

do

under ordinary

circum-

stances,

nd

his

ill

esult n

signals

eing

eproduced

n he

receiver,

nd

n

he

eceiver

f

the

distant

phone. f

he

signals

are oo oud or comfortable e-

ception mall

ondenser ay

be

connected

n

he circuit

n

e-

ries ith he ey.

The

operation

of

such

a

radio

(?)

system ver ny hone ill e

of

considerable use

when

t

s de-

sirable

o

eep

ecret

nything

which

passes

between

he

parties

at

he

end

of he ine,

as

well

as

causing he ndesired istener,

A

APACITY OUPLED

E-

CEIVER

By

.

. McGown

A most nteresting

ield of

ex-

periment s pened o adio x-

perimenters,

who

wish

o

experi-

ment

ith

ew ypes f uning

devices.

The

Cohen

capacity cou-

pled

eceiver

is

a

most interesting

and

nstructive

ubject

or

e-

search

ork.

c

\7

*

^

j

J

T

°

1>BTECTOT

The

ircuit

sed, hich s

shown

n

he

accompanying

ia-

gram, s

almost elf

explanatory.

The ondensers, ,

u

and

m,

m^y

be

any

igh apacity aria-

bles

; it

is

desirable

that

cn and

C " >

shall have he ame capacity, al-

tho

this

s

by no

means

essential.



28

PACIFIC

ADIO

EWS

The

riter

sed

hree

litzen

condensers n he

ircuit

hown.

The nductances L

and

> should

be

f

pproximately

he

ame

amount

f

nductance.

oils

about our nches n iameter,

wound

with No.

24 DCC wire o

a ength

of about

4 to 30 inches,

fitted

with

dead

end

switches will

be

found

very

efficient.

he

coils

need

ot

e ariable, f he

ser

desires nly o eceive n he

higher

ave

engths,

ut

s

he

only

hanges

n

ave ength

which

can

be

hen

effected

by

the

variations

of

he

condensers

his

does

not give

a

very

great

ange

of

wavelengths.

Using he

above

escribed ap-

paratus,

on an ntenna having

a

fundamental

of

about

0 0

meters,

signals

rom

he

German

stations

have een

opied

n he

acific

Coast; and Austin ultraudion de-

tector

being

connected

as

shown,

to

he oints arked

detector."

AMATEUR

ARTICLES

For the

benefit

of

our amateur read-

ers

we

will

ublish monthly a

ection

pertaining

to th e

onstruction

of vari-

ous

adio

pparatus.

These articles will

be

original

n all

respects

nd av e

ever

efore een

published

n

ny

adio

magazine.

M A R C O N I

UPT.

ESIGNS

M r.

G.

J. Jessop,

who

held

th e posi-

tion f

Marine

uperintendent

f

he

San

rancisco

ivision f he

ar-

coni

Company,

resigned

on ovember

ISth.

Th e ffice

s

eing

emporarily

ill-

ed

y

r.

orsman, ho ormerly

supervised

h e

Ocean

ireless

News" department

of h e

an ran-

cisco

ffice.

M r.

T.

M .

tevens,

f h e

Gulf

Di-

vision,

ill

ucceed

r. essop

s

Marine uperintendent.

INSTITUTE P

ADIO

NGI-

NEERS

ORGANIZES

SECTION

(Continued from Cage 7 )

A

ocial

et-together

ill

lso

e

held

at

various times.

n

ssessment

fee f

1.00 as

een

mposed

n

ll

members. he xpenses f he ec-

retary-Treasurer are

to

be

met

by

the

money

ealized

or

h is assessment.

Among ome f th e

members

pres-

ent

ere

r.

.

.

inman

f

h e

Marconi

o., r.

.

ratt

f

h e

Mare

sland av y Yard, rs .

.

.

De

ousa, raffic

anager

f

h e

Marconi

Wireless

el.

o.,

r.

.

Ilaller f h e lallef-Cunningham

Electric

o.,

nd

.

.

sst.

adio

Inspector

ayes.

A

copy

of h e ew adio Law

was

presented by M r.

G. S .

DeSousa,

same

being

ead

y

h e

ecretary-Treas-

urer, M r.

.

ord

reaves.

A iscussion

ollowed

h e

eading

of h e aw , h e mportant oints f

which

will

be

found

in

another

section

of

h is

magazine.

ATTENTION,

READERS

T he

rice

f h is

ublication

ill

be

ncreased

o

5

ents

er opy,

$1.50

er

ear,

aking

ffect

ithin

a hort

ime.

Send our ubscription n oday

at

th e

egular

ate,

o

ubscriptions

at

present

ate

eing

ccepted or more

than

a

erm f

ne

ear.

This ction as aken

n

ccount

of he ver-rising ost f aper nd

printing.

W e

will

uarantee

hat

magazine

of wice h e uality

nd

iz e

will

e

at our isposal when when he ew

rates ake ffect.

Better end

n

our ubscription

before he

ew

rices

ake

ffect,

ell

your

riends

bout

t

n

rder

hat

they

may

ake

dvantage

f

h e

ow

subscription ates.



PACIFIC

ADIO

EWS

29

THE NEW PROPOSED

RADIO

ACT

(Continued

rom

age

)

only,

which

are

designated

n

he

license.

2—Station

n hipboard,

tation n

board

ny

essel ot ermanently moor-

ed.

tations

n

hipboard

nclude

a)

those

pen

o

eneral

ublic

orrespond-

ence,

and

b)

hose

open

to

limited

public

correspondence.

hip

tations

f

lass

(b)

ransmit

and receive public messages

to

and

rom

ertain

tations

only,

which

are designated

n

he

icense.

3—Commercial tation, and tation

used

n

he ransaction

f ommercial

business nd ot sed or he xchange

of

orrespondence

ith

hips

t

ea.

Commercial tations

nclude

a)

hose

open

o

imited

ublic

orrespondence,

( b > imited commercial

tations, c)

pe-

cial tations

or

ransoceanic

r rans-

continental

ommunication. ommercial

stations

of

class

(a)

ransmit and

eceive

public

messages

o

and

rom

certain sta-

tions

nly,

hich

re

esignated

n

he

license.

imited ommercial

tations

(class

)

re stations

of

private Interest,

and

arry n a

peclflc

ommercial

er-

vice r ervices efined

n

he

icense;

they

o

ot ransmit

ublic

essages

to.

r receive

hem

rom,

ther

stations.

Special

tations

of

class

c)

re

pen

o

limited

ublic

orrespondence r ot. s

stated

n

he

icense.

4

xperlmcnt

tation,

and tation

of

rivate

nterest

ctually

ngaged

n

conducting xperiments

or

he

evelop-

ment

of

he science

of

adio

communica-

tion

r

he

pparatus

ertaining

hereto.

5—Technical nd raining-school ta -

tion,

a land

or ship

station

of

private in-

terest

used

or

purposes

of

instruction

n

radio ommunication and

raining

opera-

tors.

6—Amateur tation, a

and

tation

f

private

nterest

ot overed y

3) .

4),

or

5)

f

bis

ection, nd

ot

perated

for

inancial rofit. mateur

tations

include

a)

eneral amateur stations,

b)

restricted mateur

tations,

hich

re

within

ive

autical

miles

f

a

Govern-

ment

tation, c)

pecial

mateur

ta -

tions,

he

operation

f which seems

like-

ly

to

result

in

some substantial

benefit

to

radio

ommunication.

7—Government tation, tation

on-

trolled

nd

perated

y ny epartment

of

th e

Government.

See.

.

othing

n

h is

Act hall

e

construed

o pply o he

ransmission

or

exchange

of

radiograms

or signals be-

tween

oints

n

he ame tate, f aid

transmission or exchange

shall

ot inter-

fere

with

he

eception f

adiograms

or

signals

rom

eyond

he

urisdiction

f

th e said

State,

r th e effect thereof

shall

not

extend beyond said jurisdiction.

Sec. . o

adio

tation

ther

han

those

elonging

o

r perated

y

he

United

tates

hall

e sed

y

any

er-

son

within

he

Jurisdiction

f he United

States to transmit any

adiogram

y he

apparatus

and methods of

adio

ommu-

nication, xcept under and

n ccordance

with

a

station

icense

issued

by

he

Sec-

retary

f

ommerce.

ny

erson

ho

shall

perate

any

adio

tation

n iola-

tion f this Section hall e unished y

a

ine

ot

xceeding

ive

undred

ollars

for

he irst

ffense,

nd

y

ine

or

exceeding

ne

housand

ollars, r m-

prisonment

or ot

more

han

ne ear,

or both, or

ac h

offense

hereafter:

na

any

adio

pparatus

perated

n

iola-

tion

f

his

ection

hall

e

ubject

o

forfeiture.

Sec.

. he

ecretary

f

ommerce

shall

ix

he

ates

harged

y

ll

i-

censed

tations

pen

o

ublic

orre-

spondence.

The eads

f

Government

epartments

having urisdiction ver overnment

land

tations

nd Government

hip

ta -

tions

hall,

n

heir discretion, o ar as

it

ay

e

onsistent with he

ransac-

tion f

Government

usiness,

pen

uc h

to eneral ublic usiness, nd hall ix

the

ates

or

such service, ubject to he

control f

such

ates

by

Congress.

uc h

executive

heads

shall

arrange, each

in

his

own epartment, nd

or

tations

nder

liis

own

jurisdiction, or th e ransmission

and

receipt

of

commercial

radiograms be-

tween

and

tations

nd essels at

ea .

between

and

tations

nd

icensed

adio

stations

within

he

United

tates

or

any

territory

hereof,

nd

etween

and

ta -

tions

nd adio tations nder

oreign

Jurisdiction, nder he rovisions

f he

London

onvention

f

ineteen undred

and

welve

nd

uture

nternational

on-

ventions

r

reaties

o which

he

United

States

ay

ie

arty.

he

eceipts

from such radiograms, less an

amount

not

to

exceed

twenty-five

per cent pe r annum

for he ecessary xpenses

f

ac h e-

partment

or

he

andling

f

uc h

om-

mercial usiness,

shall

i e urned nto

th e

Treasury s miscellaneous eceipts.

N o radio station

other

than that

belong-

ing

to

r

operated

y he United

tates,

or y

he

Government f

he

hilippine

Islands,

hall

e

perated

n

and

r

n

a

permanently

moored

vessel

In

th e

Canal

Zone, r

n he hilippine

slands, r

n

any

erritory of th e

United

tates

in

he

West

ndia

slands

ther

han

orto

Rico,

or

in

th e

Pacific

Ocean

west

of he

one

undred nd ixty-first

meridian

f

longitude

west of

Greenwich

and

south

oi

th e ortieth

arallel f

north

atitude.

Kvery

overnment

and

tation

nd

Government

hip

tation

hall

av e

pe-

cial

all

etters

which

shall

he

designated

and ublished

y

he epartment

f

Commerce

n

a ist f

adio tations

f

th e

United

tates.

S e c .

.

fter hree

onths

rom he

passage

f

his

c t

nd

t

ny

ime

within

ive

ears

fter

he

xpiration

i

said

hree

onths,

ut ot onger, he

Government hrough he

av y

epart-

ment

hall

ave

authority

o

cquire

y

purchase

at

a

easonable

aluation

ny

coastal

adio

tation

ow

in

peration

n

the

United

tates

which

he owner

may

desire

to sell.

S e c .

. he

tation

icense

required

by

Section

ereof

shall

ot e

granted

o

any lien, or o

any

company,

orpora-

tion. r

ssociation

f

which

ny

lllcer

or

more

han

ne-third

f

he irectors

are

liens

r

f

which

more han ne-

third f he

apital

tock

s

wned r

controlled y aliens or by a oreign

gov-

ernment r

epresentative

hereof r

y

any

ompany,

orporation,

r

association

organized

nder

he aws

f

oreign

country;

nd

icense

hall

ecome

oid

if

wnership

or management f

he

ta -

tion

r

apparatus

shall

e

ransferred

o

any lien, r

o

ny

ompany, orpora-

tion.

r

ssociation

f which

ny

lllcer

or

more

han

ne-third

f he

irectors

are liens r f which more han

ne-

third

f

he apital

tock

s

wned

r



30

PACIFIC

ADIO

EWS

controlled y aliens or

by a oreign

ov -

ernment r epresentative hereof r

y

any

ompany, orporation, r

association

organized

nder

he aws

f

oreign

country.

A

license

shall not

be

granted

if.

in th e

opinion f he ecretary f ommerce,

the

operation

of

th e

proposed

station

will

seriously nterfere with he

peration

f

existing

Government

r

icensed

tations

in

he

icinity.

Sec. . he

tation

icense

rescribed

by

ection

ereof

hall

e

ssued nly

in

esponse

o

ritten

pplication

therefor,

ddressed o

he

ecretary f

Commerce,

which hall et

orth

he

fol-

lowing

acts:

1 . he

name

and

address

of th e appli-

cant.

he date

and

place

of

birth, and,

f

naturalized,

he date and place

of

natur-

alization.

2 .

f

th e

applicant

is

a

corporation, th e

date f ncorporation

nd

nder

hat

laws

ncorporated, he rincipal lace

f

business

f

he

orporation,

he

ames

and ddresses

f

th e

fficers

nd

irect-

ors. a

statement

as o

each

fficer

speci-

fying

his

place

f

birth

nd

he

ountry

of which

e

s

itizen, nd,

f

a at -

uralized itizen f

he

United

tates, he

date nd lace

f

aturalization, nd

statement

showing

what

proportion

of th e

capital

tock

s wned r ontrolled

y

aliens,

y

oreign

overnments

r

epre-

sentatives hereof, nd

y

ompanies,

corporations,

r

ssociations

rganized

under

th e

aws

of any oreign ountry.

3 . he wnership f he.

tation

nd

apparatus.

4 .

he

xact

ocation

f

he tation.

5 .

he

tations

with

which

t

s

ro-

posed

o

ommunicate.

S .

he urpose r urposes or which

th e

tation

s o

e sed.

7 .

he

ave-length r ave-lengths

which t s

roposed

o

se

at

he ta -

tion

and

he

period

or

periods

of th e day

during which

it

is

proposed

to

operate

th e

station.

8 . he

proposed

rate to

be

charged pe r

word.

9 . uc h urther

nformation

s

he

Secretary f Commerce may,

y egula-

tion. rescribe.

Kvery

application

shall

be

signed

by

th e

applicant

pon ath r ffirmation.

f

the

applicant

Is

corporation,

he

appli-

cation

hall

ie

igned

pon

ath

r

f-

firmation

by

at

least

two

officers

thereof.

The

ecretary f

Commerce

may

pon

request

etermine

n

dvance

f

he

erection f

a adio

tation,

n

he asis

of

an

application substantially

conforming

to

he

equirements f h is ection,

whether

he

pparatus

o

e

nstalled

n

such

tation ill

e icensed

pon

om-

pletion

f

uc h

tation,

nd

pon

what

condition

uc h

icense

will

e ranted.

Whoever

shall

knowingly make

any

un-

true

tatement

n he pplication or

license rescribed y

h is

ection,

hall

be uilty f erjury nd

hall

e

un-

ished y

a

ine

ot xceeding

two

hou-

sand

ollars, r by

imprisonment

or

not

more

than

five

years

or

both.

Sec,

.

tation

icenses

hall

e

n

such

orm

s th e

ecretary of Commerce

shall

rescribe and

hall

ontain a

tate-

ment of

th e following

conditions

to

which

such

icenses

shall

e

ubject:

1 .

he tation hall at

ll

imes

e

subject o nspection y fficials f he

Department of

Commerce;

and

he

Presi-

dent

of

th e

United

tates.

n is discre-

tion, may

ause

he losing f

such

sta-

tion nd

he emoval f

all

adio

ppa-

ratus, r may uthorize he se

f

he

station

r apparatus

y

ny

Department

of

he

Government pon

ust

ompensa-

tion

o

he

wners,

s

rovided n

ec -

tion

4

b) f

this

Act.

2 .

he

wnership

r

management

f

th e

station

or

apparatus

therein

shall

ot

change

without

he consent of th e Secre-

tary

f Commerce,

or be transferred

o

an

lien

r liens,

or

o

ny

oreign

government or

representative

thereof,

no r

to

any

company,

orporation, r associa-

tion rganized nder he

aw s

f

or-

eign

ountry, r

of which

any

officer,

r

more

than

one-third

of

th e

irectors,

are

aliens,

r f which more han ne-third

of

th e

capital

stock

is

owned

or

controlled

by

liens

r by a

oreign

overnment

r

representative

hereof,

r

by

a company,

corporation,

r

association

rganized

n-

der

he

aws f a oreign ountry. he

ownership r ontrol f more han ne-

third

f

he

apital

tock

f

ny

om-

pany,

corporation,

or

association

to

which

a

tation

icense

as

een

ssued

hall

not be

transferred

during

th e term

of

th e

license to

an

alien

or

aliens,

or to

a for-

eign government or representative there-

of. r o

ny

ompany,

orporation, r

association

rganized

nder

he aws

f

a

foreign

country.

o

company,

corpora-

tion

r ssociation

o hich

tation

license

as

een

ssued

hall

hereafter

during

he erm

f

he

icense

av e

any

officer

wh o

s n

lien,

3 .

he

ates

o

e

harged

hall e

as ixed y

he

ecretary

f Commerce,

and

hall e pecified

n

he icense.

4 . pparatus

other

han

h at

pecified

i n

he

license

shall

not

be

used

for

radio

communication,

5 . very icensed

adio tation

pen

to

general

ublic

correspondence hall

e

bound

o xchange

adiograms

with

ny

other

uc h

tation without

istinction

f

th e

adio

ystems

dopted.

Such

license shall

also

show

specifically

th e ownership

and location of

th e

station

in

which

he apparatus

is

to

he

used

and

such

ther articulars s he ecretary

of ommerce

ay

eem

ecessary

or

the identification

of th e

apparatus and

to

enable ts

ange

o e stimated,

hall

show th e purpose of th e station, th e

rates

authorized

y

h e

icense,

he

ave-

length

r

ave-lengths

nd

he

ecre-

ment

r

ecrements

uthorized

or

se

by

he

tation,

nd

he

ours

or

which

th e

tation

s

icensed

o work.

Sec. 0 ,

ny tation

icense

hall

e

revocable y

th e

Secretary

of

Commerce,

in is

discretion,

or violation f

or

fail-

ure

to

observe

any

of

th e restrictions

and

conditions

entioned

n

he receding

section,

r other

provision f

this

Ac t

or

regulation

f

th e

Secretary

of

Commerce,

and

th e

books

and records

of

th e

licensee

shall

be

open

at all

times

to

inspection by

officials f th e Department

f

Commerce

to nable hem o

etermine hether

such

iolation

r

ailure

o

bserve

as

occurred.

Sec.

1 .

very

radio

tation

or

which

a

station

icense

s

equired

y

his

Ac t

shall

be

in

charge

of

or

under

th e

super-

vision of

a

person to whom

n

operator's

license

hall

ave

been ssued

ereunder.

N o person

hall

operate any

such

tation

except nder

nd

n ccordance

with

n

operator's

icense

ssued o

im

y

he

Secretary f Commerce.

he ecretary

of

Commerce,

in

his discretion,

may

grant

special

emporary

licenses

to operators

of

radio

pparatus

hen

ny

mergency



PACIFIC

ADIO EWS

3 1

arises

equiring

he

rompt mployment

of

such an perator. hoever shall em -

ploy

any

unlicensed

person

n

he opera-

lion

r

upervision f

any

icensed

adio

station,

or

whoever

without an

operator's

license hall

perate

r supervise

such

a

station, hall e unished

y

a

ine

ot

exceeding

ne

undred

ollars

or

he

first

offense,

nd

y

a

ine

not exceeding

two

undred

ollars or

imprisonment

or

not ore

han

wo

ears,

r

oth,

or

each

ffense hereafter.

Sec.

2 . n

perator's license

hall

e

issued

nly

n

esponse

o a

written

p-

plication

therefor addressed

to

th e

Secre-

tary

f

Commerce, which

shall

et

orth

the ame, age, nd

address

of th e

appli-

cant, date

and

place

of

birth,

he country

of

which

he s

a citizen,

nd

if a

natur-

alized

itizen

f

he

nited

tales

he

date

and

place

of

naturalization.

he

ap -

plication

hall

lso

tate he

revious

experience

of applicant

in

operating

radio

apparatus

nd uc h urther

acts

r

n-

formation

s

ay

e

equired

y

he

Secretary f Commerce. very

pplica-

tion hall

e

igned

y

he

pplicant

upon ath r affirmation. n perator's

license

hall

e

ssued

nly

o

a

erson

who, n

he judgment

of

th e Secretary of

Commerce, s

hown

o

e

roficient n

th e ttse and operation of

radio

apparatus

and

n

he ransmission nd eceipt f

radiograms.

n

perator's

icense

hall

not

he

ranted

o

any

alien

r represen-

tative

of

a

foreign government.

hoever

shall nowingly

make

ny

ntrue tate-

ment

n

n

pplication or

n

perator's

license

hall

e

uilty f

erjury

nd

shall

e

unished

y

ine

ot

xceed-

ing

two thousand dollars or

by mprison-

ment

or

ot

ore

han

ive

ears,

r

both.

Sec. 3 .

n

perator's

icense hall

e

I n uc h orm

as

he

ecretary f

Com-

merce hall

rescribe,

nd may

e

us-

pended

by

th e

Secretary of Commerce for

a

eriod ot xceeding ne ear, pon

proof

ufficient o atisfy

im

hat he

licensee has violated any

provision

of

this

Act r egulation

f

he ecretary

f

Commerce, or

that e as

ailed

o

com-

pel

compliance

therewith

by

an

unlicensed

person

n

is employ or

under his super-

vision. r th e

icense

may

be evoked

by

th e ecretary

f

ommerce

pon

roof

sufficient

o

satisfy

im

hat

th e icensee

was

or

is

ineligible

or

a

license.

Sec.

4 .

a)

adio

tations

icensed

under

he provisions

f

his

Ac t

hall t

i l l

times

be

subject

o

inspection by

offi-

cials

f

he epartment

f

ommerce.

During

ny ar

n

hich

he

nited

States hall e a eutral

ation,

nd n

time of threatened or actual

war

in

which

(he

United

States may

be

a party,

nd

In

time

of

public

peril

or

disaster,

th e Presi-

dent

may,

y roclamation

r

xecutive

Order,

ssue egulations

or

he

onduct

and

ensorship

f

all

adio

tations

nd

radio

apparatus of every

form

and nature

within

he urisdiction

f he

nited

States.

ny

person

who

hall nowingly

violate

or

fall

to observe any

of said

regu-

lations

hall

e

unished

y

a

ine

ot

exceeding

en

housand

ollars

r

y

a

term f

mprisonment

f

ot

more

han

three

ears

r

oth:

nd

n

ase of any

such iolation

r ailure o bserve

ny

of aid

egulations,

he

adio

tation, r

apparatus, or

both,

hall

be

liable

to

for-

feiture to th e United States

(h )

he

President,

urther,

n

his

dis-

cretion.

may cause

th e emporary closing

of any

adio

tation

within

he

urisdic-

tion

of

th e United States

and

th e

tempo-

rary emoval herefrom

f

any

adio ap -

paratus

or a

eriod

r

eriods

f ot

more

han

ive

onths ach,

r

ay

authorize

th e

temporary

use of

th e

station

or

he

apparatus

hereof

by

ny

epart-

ment

of

th e Government

for

a

like

period

or

periods

upon

just

compensation

o

he

owners.

Sec. 5 .

a)

Whoever shall

maliciously

or wilfully nterfere

with

r

ause

ny

interference ith adio

ommunication

carried

n or sought to

be

carried

on

y

any

adio

tation r pparatus

hall

e

punished

y

a ine

ot

xceedingly

ive

hundred ollars or he

irst

ffense,

nd

by

ine

ot

xceeding

ne

housand

dollars,

or each offense

thereafter.

(b)

hoever hall wilfully ivulge r

publish

he

ontents, ubstance,

urport,

effect

r meaning

f

ny adiogram,

r

any

art

hereof,

o

ny

ersons

ther

than he

ender

r

ddressee hereof, r

his

gent

r

ttorney, xcept o

a

ele-

graph

r

adio

tation

mployed

o

or-

ward such radiogram

to its

destination,

or

in esponse o a ubpoena

ssued y a

court

of

competent jurisdiction, r

on

de-

mand

of

other

competent

authority,

shall

b e

unished

by

a fine

ot exceeding five

hundred ollars or

th e

first

offense,

nd

by

a

fine

not

exceeding

one

thousand

dol-

lars, r imprisonment or ot

more

han

one year, or both,

or

each offense there-

after;

provided,

that

his

section

shall not

apply o

he

ivulging r ublication

f

the ontents f ny

adiogram

y

he

sender

or addressee

thereof.

S e c . 6 . ll

tations

shall

give priority

over ll

ther adiograms

o adiograms

relating

to

ships in distress,

shall

discon-

tinue

ll

ending

n

earing

a

istress

signal,

nd ,

xcept

hen

nswering

r

aiding

hip

n

istress,

hall

efrain

from sending until

all

radiograms

relating

to

th e

ship

or

ships in

distress

shall have

been

completed.

Every

coastal

tation

and every

station

whose peration

an

nterfere ith he

exchange

f

messages

etween

hip

nd

ship,

or ship

and

coast

Is required,

during

th e

hours it

la

In

operation,

to

listen

in at

intervals

of

not

less than

1 5

minutes, and

for

a

eriod

of

not

ess han minutes,

with he

eceiver

uned

o eceive mes-

sages

n

a

wave

ength

f

0 0

eters,

or

such

other

normal wave

length

as

may

be

equired

y

uture nternational

on-

ventions.

Sec.

7 . hen sending

distress

signals,

th e

transmitter

of a station on shipboard

may

e

uned

o

reate

maximum

f

interference

with

a

maximum

f adia-

tion. n

all

other

circumstances,

all

ta-

tions

hall se he minimum

mount

f

energy

ecessary o

omplete

ny

om-

munication.

Every

adio

tation

hall

se

uc h

transmitting

apparatus that

th e

energy

is

radiated

n

as pure and

harp

a

wave

as

practicable,

nd

ave a ogarithmic e-

crement

not

greater

than th e

limits which

may

e

pecified

y

he

Department

f

Commerce,

ut

he

owner or operator of

a

station mentioned

n

Section 1 8 ollow-

ing

hall

ot

e

iable

o

he

enalties

provided

n

ection

8

or a

iolation

f

the

requirements

of

this

paragraph

unless

such wner r perator

hall av e

een

notified

n

riting

h at

he

ransmitter

owned r sed y

im

as

een ound,

upon tests conducted

by

th e Government,

to e o

djusted

s o

iolate

aid

e-

quirements,

nd

pportunity iven

uc h

owner or operator o djust

uch

trans-



32

PACIFIC

ADIO

EWS

mltter

so as

o

conform

o

aid

eouire-

monts.

Receiving

pparatus

hall

e f

uc h

construction and

so

adjusted

and

used

as

to

give

th e greatest practicable protection

against

interference.

Sec.

8 .

eneral

amateur

stations

shall

not

se

a

ransmitting

wave-length

x-

ceeding

0 0

meters

r a ransformer

n-

put

xceeding

ne ilowatt.

Restricted mateur

tations

hall ot

use ransmitting wave-length

xceed-

ing 2 0 0

meters

or

a transformer

input

ex -

ceeding one-halt kilowatt.

Special mateur

tations

are

ermlttea

to

se ny ave-length ess han

0 0

meters

and

n

mount

of

power ot x -

ceeding

th e

limit

which shall e

specified

i n he icense,

rovided

he ecretarv

f

Oommerce

is

satisfied that

such

operation

would ot

nterfere ith

overnment,

commercial,

coastal,

or ship stations.

See. 9 . he ecretary f

Commerce

may,

n

is

iscretion,

rant

icenses

o

experiment

tations

to ermit

he

arry-

ing

on

of

tests with

any

amount

of

power

or

ny wave-lengths,

at

uc h

ours

nd

under uc h

onditions

s

will nsure

he

least

nterference

with

th e

work

of other

stations.

Sec.

0 .

ommercial

stations

and

tech-

nical

nd

raining-school

tations

hall

not

se

ransmitting ave-length

f

1 8 0 0

meters nor any wave-length exceed-

ing

6 0 0

meters

unless

it

exceeds

1 6 0 0

me-

ters, xcept n pecial

ases

o be

deter-

mined

y

he.

ecretary

f

ommerce.

Such

tation

hall

perate

n

uc h

manner as not to cause interference with

Government

tations

or

other

commercial

stations.

uc h

a

station

shall

ot

use

any

wave-length

etween 0 0

and

0 0

meters

if

operation

at

such a wave-length would

in he pinion

f th e

ecretary f Com-

merce

ause

nterference with

oastal

r

ship

stations.

After

th e

passage

of

this

Ac t

no license

shall e

ranted

o a commercial

tation

permitting

he

se of a

wave-length

e-

Iwcen 0 0

nd

0 0 0 meters,

xcept when

so

ar

emoved rom overnment

r

Coastal

stations that

I n

th e

opinion of

th e

Secretary f ommerce

o

nterference

can

ccur

with overnment r oastal

communications.

In

onsidering omplaints

f nterfer-

ence and

n

eciding

whether

th e

license

of

a

tation

ausing

serious

nterference

shall

e

evoked

y

he

ecretary

f

Commerce, reference hall

e

iven

o

stations communicating with ships

or

be-

tween oints where

other

means

of

com-

munication re ot available.

Sec. 2 1 . very coastal station and

ship

station shall at

all

times he ready

to

send

and eceive

messages

and signals on

such

wave-lengths

and of

such

wave character

as are equired

by

he

existing

or future

international

onventions,

ne

f

hese

wave-lengths

to

be

considered

as th e nor-

mal

sending

and receiving

wave-length

of

th e tation. uc h

tations

may

lso

use

1 8 0 0

eters

nd

uc h

dditional

ave-

lengths ess han

0 0

meters s may e

granted

y

he

ecretary

f

ommerce.

Kvery

such

station

hall

ave

ts

receiv-

ing

apparatus

so marked h at

he

opera-

tor

can

quickly and conveniently adjust it

to

a

eceiving wave-length

f

6 0 0

meters

or ther

istress

wave-length

h at

ay

be designated

by

future

international con-

ventions.

Sec. 2 . o licensed hip

adio

station

when

within

ifteen

autical miles f

a

Government land station or a

coastal

sta-

tion shall use

a transformer

input

exceed-

ing

ne ilowatt,

or

when ithin

ive

nautical miles

of a

Government land ta-

tion

r a

oastal

tation, a ransformer

input exceeding one-half

ilowatt,

xcept

for

sending

distress

signals or signals or

radiograms

relating

thereto.

The ecretary f Commerce may

egu-

late or prohibit

he

se of

th e

ransmit-

ters

of

stations on

hip

oard

in

arbors

within

he urisdiction f he nited

States,

as

he

may

deem necessary.

S e c . 3 .

o icensed

and

tation

n

operation n

he ate f he

assage

f

this

Ac t

within

fifteen

nautical

miles from

the

Government receiving stations

at

th e

following oints:

oston,

ass..

ew-

port, R.

I.. Washington,

D .

C.,

Charleston,

S . ., ey West,

la.,

an uan, . ,.

Point

Isabel,

San

Antonio, Laredo, and

El

Paso, exas, ort

uachuca, rizona,

S an

iego,

nd

an

rancisco, alif.,

N orth Head.

Tatoosh

Island,

and Bremer-

ton.

ashington,

r

rom

ny

overn-

ment

station

n

Alaska, hall

e

licensed

to hange

ts

quipment

n

ny

manner

that

ill

ncrease

ts

nterference

ith

other

stations, and

no

land

station

located

within ifteen

autical

miles of

he

Gov-

ernment

eceiving stations

herein amed,

and

ot

n peration n he

ate

f

he

passage

f

this

Act.

hall be

licensed

or

the

ransmission

f

public

r commercial

business by

radio

communication.

Sec.

4 .

t

all

mportant

seaports

and

at

all

ther

places where coastal

stations

operate

n

uc h lose roximity o Gov-

ernment tations h at nterference ith

the

work

of

th e

Government

stations

can-

not be otherwise avoided by he

enforce-

ment

of

this

Act.

such

coastal

stations

as

interfere

with he eceipt

f

adiograms

h v he

overnment

tations

oncerned

shall

ot se heir

ransmitters

uring

th e

irst ifteen inutes

f ac h

our,

local

tandard

ime. he

ecretary

f

ommerce may, n he ecommendation

of

he Department oncerned, esignate

the

tation

r stations

which

may

he

e-

onlred

o

bserve

his

ivision

f

ime.

The

Government

tations

or which h e

above-mentioned division f time may be

established

shall

transmit radiograms

onlv

during

he irst

ifteen

inutes

f

ac h

hour,

ocal

tandard

ime, xcept

n

ase

of

adiograms

elating

o essels n

is-

tress.

Sec.

5 .

Whoever,

ncluding

any

person

i n he ervice

f

he Government, hall

knowingly transmit

r

publish,

r

now-

ingly ause o

e

ransmitted

r ub-

lished,

ny alse

r

raudulent

istress

radiogram,

or

who,

when

engaged

In radio

communication,

hall

ransmit

or

publish,

or

cause

o

e

ransmitted

r

ublished,

any

ther

adiogram

or he

urpose f

defrauding

or

eceiving he Government,

shall

e

unished by a

fine

not exceeding

two

thousand dollars or imprisonment for

not

more

han ive

ears,

r

oth.

S e c . 6 .

o

erson

hall

se

r

oper-

ate

ny

adio

pparatus

n

oreign

shin

when

within

he

urisdiction f

he

United

tates

therwise

han

n

ccord-

ance

with he

rovisions

f ections

4

'a), 5 .

6 ,

7 . and 2 2 of

this

Act. and

all

the

provisions

of

said

sections

and

penal-

ties

hereto ttaching re

ereby

ade

applicable

o

uc h pparatus; rovided,

however,

hat

n

o ther

espect hall

anything

ontained

n

his

Ac t

pply

o

apparatus

n

oreign

hips,

or

shall

he

restrictions

of

this Section

or

of

any

other

(Continued

n

age

4 )



PACIFIC

ADIO

EWS 3

GTT

NT

Radio Apparatus

s

manufactured

on

he acific

oast

or

acific

Coast

Experimenters with

artic-

ular

regard

or

Pacific

Coast on-

ditions.

Our

ine

ncludes:

Six styles

of

oose couplers

Four

ypes

of

Crystal

Detectors

Three tyles

of

Rotary Gap

Besides eceiving

ets,

ac-

uum

etector

anels,

ixed

and ariable ondensers,

lso

a

large

stock

of

parts

for

build-

ing your own

apparatus,

com-

prising inding osts, ard

Rubber,

ontacts,

ibre,

Switches,

etc.,

etc.

Haller

Cunningham

Electric

Co

4 28

MARKET

T REET

AN

R A N C I S C O ,

ALIF .

ggsoa

When

writing

to Advertisers lease mention

his

Magazine



34

PACIFIC

ADIO EWS

HAAS

WOOD nd

VORY

WORKS

CABINET WORK

FOR

ALL

TYPES

F

ADIO

N D

ELECTRICAL PPARATUS

Transformer

Cases

Receiving et abinets

Panel et

Woodwork

Lathe

Work

64-66 CLEMENTINA STREET

Between

First

and

Second

S AN

R A N C I S C O ,

AL.

Frank .

Herrguth

A 1

osenberg

Formerly

of

au l

eiler

Electric Works

Electric upply

and epair

o

Full

Stock

of

Electrical

and

W ireless aterial

PANEL

ETS AN D

THER

WIRELESS

APPARATUS

M A D E

TO

RDER

Large

tock of

Electron

elays

520

MARKET

TREET

S an

Francisco

(Continued rom

Page

3 2 )

.Sections

of

ins Act apply to

public

ves-

sels

of

foreign

governments otherwise

than

by eneral roclamation f

he

resi-

dent.

Sec. 7 . he ffice

f

Director

aval

Communications,

stablished

nder

oe

jurisdiction of th e

Navy

Department, shall

b e

charged with

th e accounting

and

pay-

ment

f

lmrges

n

onnection with he

settlement

f

nternational

adio c-

counts

as

provided

y th e London

adio-

telegraphic

Convention of 1 9 1 2 ,

or

as may

be

rovided y uture

nternational

on-

ventions. he

xpenses

nvolved n

he

settling f

nternational

adio ccounts,

not

xceeding ive housand ollars er

annum,

hall e

orne

y

he

nited

Stales.

Sec.

2 8 . n

all

cases

of

violation of

any

provision of this Act tor which

no

penalty

Is otherwise prescribed,

r

of any regula-

tion f he ecretary

f

Commerce, he

Secretary

of

Commerce

may

Impose

a

tine

of

one

hundred

dollars

upon

he

owner of

the

pparatus

y

eans

f

which uc h

violation

was effected,

r a

ine

of

twen-

ty-five ollars

pon he

ffending

opera-

tor, r

oth,

ut

uc h

ines

may

e

e-

duced

r

emitted

y

he ecretary

f

Commerce in is

discretion; nd n

addi-

tion

he

ecretary

f

Commerce

may, n

his iscretion,

evoke

he tation icense

of such

owner

and

evoke

or

suspend he

license

f

uc h perator

s

rovided

n

Sections

0

nd

3

of h is Act.

Sec.

9 .

he ecretary

f

Commerce

shall

have

power

to

enforce th e provisions

of his ct

y

ppropriate

egulations

through

ollectors

f

ustoms

nd uc h

other

fficers

s

e

may

esignate;

nd

said

Secretary shall also

enforce th e pro-

visions

f uc h nternational adio on-

ventions

s ave

een

r

may ereafter

be

atified

r

dhered o

y he

United

States,

xcept

that

provisions

thereof

re -

lating o Government

adio

nstallations

shall

e enforced

by

th e Departments re -

spectively

ontrolling

uc h nstallations.

The

ecretary

of Commerce may, pon

application therefor,

remit

or mitigate any

f i n e ,

penalty,

or forfeiture provided for

in

this

Ac t with he

xception

f

enalties

Including

mprisonment: rovided, hat

the enalties

ot

nvolving imprisonment

incurred n

he hilippine

slands,

ay

b e remitted

or mitigated by th e Governor

General

nd

resident

f

f c e

hilippine

Commission, nd uc h enalties

ncurred

I n he anama

Canal

one

may

e

e-

mitted

r

mitigated

y

he

Governor f

th e

Panama

Canal on

application

therefor

being

made,

n

uc h

manner

nd

nder

such

egulations s hey ay

eem

proper.

See.

3 0 ,

xcept

as

otherwise

specifical-

l y rovided n

his

Act,

he

provisions of

this

Act

hall xtend

o

ll

laces ub-

ject o he urisdiction f he United

States.

he

everal

Courts

f

irst

n-

stance

n

he hilippine

slands

nd

he

District

ourt f he anal

one hall

have urisdiction f ffenses

nder

h is

Ac t

committed within their respective

dis-

tricts.

and

of

conspiracies

to

commit

such

offenses

as

defined

by section

thirty-seven

o f

he

Act

o odify,

evise,

nd

mend

the enal aws f he United

tates,

p-

proved

March 4 . 9 0 9 ,

nd

he

provisions

of

aid

ection, or he

urposes

f

his

Act,

are

hereby

extended

to

th e

Philippine

Islands

and

to

th e

Canal

one.

Sec. 1 . he Ac t pproved August

3 .

When

writing

o

Advertisers

please

mention

h is

Magazine



PACIFIC

ADIO EWS 3 5

1 9 1 2 ,

ntitled

An Ac t o

Regulate

Radio

Communication,"

s

ereby

epealed.

Such epeal, owever, hall ot

ffect

any

c t one r ny ight ccruing r

accrued,

or

any suit or

proceeding

had

or

commenced n ny

ivil

ause

rior

o

said

epeal,

ut

ll

iabilities

nder

aid

laws

shall

ontinue

and

may

e

nforced

in he

ame

manner as

f said

epeal

r

modifications

had not

been

made:

nd all

offenses

committed,

and

all

penalties,

for-

feitures or

liabilities

incurred

prior

to

th e

taking

ffect

ereof, nder ny aw m-

braced in,

hanged, modified, r

epealed

by

this

Act,

may

be

prosecuted

anil

pun-

ished

n

he

ame

manner

and

with

he

same ffect as t h is Ac t ad ot een

passed.

A M A T E U R

TATIONS

OBBED

During

th e past three months, more

than

alf

a

dozen

an

Francisco

ama-

teur

tations ere ooted

y

aring

robbers

and

up

to th e present time

no

clew has een

ound.

Detectives

ave

been

working

on h e ase or everal

months ut av e

btained

no

efinite

information s et.

The

tation

f

M r.

.

.

artin

was

hrice obbed. r. . . ar -

nett's

tation

was ooted

wice.

he

entire

equipment,

including

th e

screws

on

h e

wall,

were

aken

y

these

ar-

ing

mischief-makers.

M r.

.

.

yan

eports

hat

is

basement was

obbed t

east hree

limes in

wo weeks,

many

magazines,

insulators

nd

ther

mall

ireless

articles

eing

tolen.

r. oward

Cookson's erial n he Y.

M .

. A.

building was tripped f he wire, n-

sulators nd ther

aterial,

vcry-

hing

being

taken

ut

the

aerial

poles.

While

M r.

C.

. Altland was spend-

ing is

acation

n

os

Angeles,

is

aerial as also tripped f he wire

and nsulators.

Looks s

f

ome

nterprising

n-

thusiast

s

ndeavoring o

stablish

wireless

orporation or

he ale f

second

and material.

Detectives

assert hat h ey re un-

der h e mpression

hat o mateur

is

uilty

f

h e

ffense

nd

lace

he

blame

n

econd and

unk

ealers,

who re aking dvantages f he

high rice f metals, specially op-

per.

On Thursday night,

ovember

3d,

th e antenna

sed

at

he ig ootball

game

at

h e niversity

of

California

was tripped f ll ts wire.

Any

nformation egarding

hese

daring

obbers

ill

e

ppreciated.

All

orrespondence hould

e

d-

dressed

o

h e

.

.

adio

Club.

DO

YO U KNOW THAT

th e

EST

hotographs

nd

rticles

of adio

tations perated

y

he

Federal

elegraph

o.,

he

aller-

Cunningham

ystem,

he ilbourne

and

Clark

ystem

nd

he

mysterious

Japanese

System

have

never

been

pub-

lished

in

any

magazine?

We

will

con-

vince

ou

f

h is

act by ublishing

some

air-raising

stories n h e most

interesting

ystems of adio ommu-

nication in

se today.

ach

issue

will

contain n nteresting rticle

on

ne

of

these

systems,

fully

illustrated

with

photographs hat av e ever efore

been ublished.

If

he

contents

f his

ssue

eet

your

approval,

hink

f

what

we

av e

in tore or

our uture ssues. how

this magazine

o

very

adio

enthusi-

ast

ou

meet,

end s is ame nd

address and

we

will

end

im

a

sam-

ple

opy

of

h is

ublication.

Do not ail o end n our ub-

scription oday; f

ou cannot fford

to

send

us

$1.00

fo r

a

year's

subscrip-

tion,

will

will end

ou

ive

onsecu-

tive

ssues

or

50

ents.

N o adio magazine published n h e

United States

an iv e

ou

he

ews

that we can.

e

have

representatives

in

very

wireless orporation n h e

Pacific

Coast

nd

will eep

our

ub-

lication

illed

with he

most

ascinat-

ing

rticles maginable.

AMATEUR

ARTICLES

These

will e ublished

nder

h e

heading

f

Handy Hints",

ll ma-

teurs

eing equested

o

urnish

ORIGINAL rticles

hat will

rove

to be

of general interest to all readers.

S ee

nnouncement in next

ssue

e-

garding

prizes

or

est rticles.



36

PACIFIC

ADIO

EWS

G O O D R O U N D ONNECTIONS

B y

D.

. McGown

I t as ome

o

he attention f h e

writer

n

ery oticeable

anner

lately

ow

ew

mateurs

ave

eal-

ly good ground onnection. t eems

to

e ery

ommon

dea

hat

water

ipe,

o

matter

where,

or

ow

located,

s

ll ery well nd

ufficient

fo r

a

ground. ne

case

which

s well

worth iting

s

s ollows. ertain

amateur, wh o

magined

e new well

what

was

necessary

fo r

th e

proper

in-

stallation

or

is

tation

rected

fine ntenna,

omposed

ntirely

f

stranded

hosphor ronze ire,

ell

insulated ith ubber od nsulators,

and

ith

ine

leetrose

ead n

tube.

e hen

roceeded

o

onnect

his

ransmitter

o h is

ntenna,

nd

tried o adjust t

o

esonance.

e

found

hat

h e

natural

eriod

f

h e

antenna was about 9 7

meters, just

s

or

ngalvanized

ipe. he

round

was at nce

isconnected,

nd

a

ig

copper

plate

was buried

in

th e ground

directly

nder

he

tation,

ome

oke

being buried

with

t,

o

attract

moist-

ure.

he

radiation

now

ose to about

two

mperes, n h e ame ower s

was

sed

efore.

Some

esults

ecorded

ro m

everal

experiments at h e author's wn ta -

tion re s

ollows.

he

ground

irst

used

was

umber

ix

tranded

op-

per ire, hich ed irectly o

h e

water

ipe. his

ipe

an

bout

en

feet

arther n,

where

t

entered he

ground.

e ill

all

h is round

number

ne .

ome

half

nch opper

ribbon

as hen oldered o h e

ground

wire

where

t

was

astened

o

th e

ipe,

ah d

then

wisted round he

pipe,

nd un or

bout en eet

ast

Ground umber

adiation

One .1 Amps

Two

.8

Amps

Three

.3

Amps

Four

.1 Amps

W av e

ower

210 M .

00

Watts

210 M .

00 Watts

210 M .

00

Watts

210

M .

00

Watts

he ad esigned

t

o e,

owever,

do

what he would h e

could

n no way

put

more

han

bout

alf

n mpere

in

he antenna

n

.

W . inally,

after

eries

f ery isheartening

tests,

he

riter

as

sked

o

ook

th e quipment ver. inally,

fter

everything

lse, as arefully ooked

over

he

round

as

ooked

fter.

T he

round

ire,

umber

our

stranded opper,

was

raced

ro m

he

transmitter,

hru

he

wall nd own

to

he

ellar.

ere

t

as

astened

to

he alvanized ater ipe, nd

everything

seemed

all

right.

However,

th e

water

pipe

was traced,

and

it

was

found hat

he alvanized ipe

an

only

ew

eet,

hru

h e wall, when

it was

crewed

o

ommon black",

th e

point

where

he

ipe

ntered

h e

ground.

e

ill

all

h is round

number

wo.

bout

ifty

ounds

junk opper ire

f

arious

izes

mostly o.

or

0,

was

hen

uried,

at

epth

f

about

ive

eet,

irectly

under

h e

tation. h is ire as

spread ver

n

rea f bout

hirty

square

eet.

ne nch

brass

ibbon

was

ed

off f

this.

e

will

all

his

ground umber hree.

bout ifty

pounds more f junk wire were

hen

buried,

but

this

time

it

was

not

buried

so eep, ut ather uried o hat

t

covered s

arge

n re a s ossible.

This

as

onnected

o

alf

nc h

brass ibbon,

hich

an

or bout

twenty

feet, about wo eet below h e

surface,

efore t was

ed

o

h e

ta -



PACIFIC

ADIO

EWS

3 7

tion. e will all

h is round um-

ber

our. he

adiated

amperage

or

these

various grounds

is shown in

the

table.

These

eadings ere

btained

when he rounds were onnected

s

follows:

irst

umber

ne, hen

Number wo was onnected

ight

n

with umber one,

h en

umber three

was

onnected

nto

he

ircuit,

na

finally Number Four. Thus in h e at-

ter case it will

be

een hat

all

of

th e

grounds were

n

se

n

est

our.

As t is

well

nown hat he adia-

tion

aries

irectly

s

he

SQUARE

of

he ntenna urrent, h e nergy

transmitted

n

he ast ase s

ery

much reater han hat ransmitted

in he irst ase.

For

eally

fficient round,

hen,

it

eems

hat

he points o e

aken

into account are: irst,

a

good

eavy-

lead ro m

th e station;

econd,

no

high

resistances

ntroduced

nto he

ir -

cuit;

hird,

umber

f

eparate

grounds, nd

astly ood

urface

exposed by he ctive

wire.

T AC O M A M A T E U R S R G A N -

IZE WIRELESS CLUB

On

c t.

0 ,

916,

h e adio lub

of

acoma, ashington,

was

rgan-

ized t r. .

ason's

tation n

13th

t.

h e

ollowing

fficers

were

elected:

President, H . G. eichert.

Vice-President,

D.

Mason.

Secretary,

dwin

oe .

Treasurer,

Alvin

tenso.

A ommittee or drafting

he

Con-

stitution as hosen, onsisting

f

three lub

members.

Up o h e

present

time th e Tacoma

W ireless

Amateurs

have

h ad no

Radio

Club

egardless

f

he

arge

umber

of adio nthusiasts n hat ity.

T h e urpose

of

he lub

s

o

ro -

mote

he nterests

f

adio

Commu-

nication

among

its

members and

other

radio

operators

n uget ound.

A meeting

of th e

club

is

held

very

Thursday

vening

at

17

.

3th

t. ,

order eing

alled

at

'clock.

All orrespondence hould e d-

dressed

o

he

ecretary,

M r. dwin

Moe,

4118 N . 6 th St.,

Tacoma, Wash.

OLD

AN

TATIC

O ES

O

JAIL

T he urors ave h e erdict,

One

ark

October

ay ,

They convicted Old

M an

tatic

T o

is

cell cross

h e ay .

'Twas

no

surprise to

radio

"hams",

Commercial

men

s

well—

Old Static

keeps

the

ether

jammed,

Docs things

we

would

not

ell.

H is uzzing, rumbling, eavy lick

Caused ore han ne

arsh

word,

From

en

ho

o

heir uners

stick,

And

nothing

lse hey eard.

They

cuss

O ld

Static

up

and

down,

From ome o anama,

H is

am e

as

ained

orld ide

renown,

H is

spirits

spread

afar.

In

ummer

hen he

ights

re

warm,

H e

starts

out

on

is

ask,

H e

aves

about rom ve

till

morn

And

ravels mighty

ast.

H e spits his

fire

o

and

ro

For

six

long

Summer

months,

Conditions h en

o

better

grow

And

e tops

is

unny stunts.

In Winter time h e

disappears,

You

wonder

where

e oes,

In AIL,

hat's

here e its n

tears,

We've

old

ou omething

o

one nows.

O U R

IRST UBSCRIBER

T he irst

erson

igning our

yearly

contract ubscription lank as

r.

E.

.

mith

f

an Vancisco.

T h e

first Eastern

enthusiast

to

send

fo r opy was

M r.

.

M .

odge

of

Grubbs,

Del.



38 PACIFIC

ADIO

EWS

PACIFIC OA ST R M Y V I A-

TOR

M A K E S

WORLD

EC OR D

The

War

Department

n Washing-

ton

nnounced

hat

on

Dec,

6th ,

Cap-

tain

.

.

Culver

f

he

army ignal

corps roke

he

orld's

ecord or

long

istance

ransmission

f ire-

less ignals

rom

n

eroplane.

Captain

ulver uccessfully

rans-

mitted

nd

eceived

essages

t

distance

f

19

miles

while

n

light.

It

s

tated

hat

he

revious

ecord

of

8 iles

as stablished

y

French

army

lyer.

T he ecord was made n ross-

country

light

ro m

os

Angeles

n

slock rmy

eroplane

quipped

with

a

8 0

watt

ransmitter.

Successful

rials

f ignalling

e-

tween

wo

eroplanes

was

made

he

same

ay

y

aptain ulver, he

message being

received by

Lieutenant

W illiam A. obertson

f

he an

Di-

eg o viation chool.

SAYVILLE

IRECTOR

ISITS

S AN

R A N C I S C O

Dr. K a r l

G.

rank, Secretary-Treas-

urer

f

he tlantic ommunication

Company,

ecently

isited

an

ran-

cisco. he

eason

or

aking

he

trip till emains

mystery.

H e

nformed he Pacific adio

News"

hat

he

ayville

tation

was

rendering

xcellent

ervice

nd

hat

communication

with he German ta -

tion as

eing

arried out n 4 -

hour day schedule.

H e

further stated that reports often

read

n he

ewspapers

egarding

un-

satisfactory orking f he

tation

due

to

static

conditions,

were

without

foundation. he reat umber f

commercial messages estined

o he

German

mpire

ad

aused

he

i-

rectors

f

h e

tation o

iscontinue

accepting ommercial raffic or

ev -

eral

ays,

tatic n

o

way

indering

th e

means

f

communication

with

he

European

tation.

T h e udion

mplifier

s eing

used

at Sayville fo r

receiving

th e

Ger-

man

ignals, 00 .W . ndamped

wave ransmitter

eing

mployed or

transmitting

h e

raffic.

Owing o h e

act

hat

he

British

Government

as

arred

h e nterna-

tional

ews ervice

ro m

he

ritish

Isles, he ayville tation as een

overflooded

with

war

eports for pub-

lication

n

he

Hearst

papers

hruout

th e ountry.

A

pecial

ate

f

ents per word

for

ress

ervice

as

warded

h e

Hearst ews ervice.

Dr.

rank

s lso epresentative

of

he iemans nd alske

Corpora-

tion

f

erlin,

he

manufacturers

of

th e elefunken pparatus.

H e

tated

hat

espite

he

nor-

mous amount

f

material

aken

ver

by

he

German

Government

or

war

supplies,

th e

corporation is

still

manu-

facturing

an

bundant

supply

of

radio

apparatus,

he

evelopment f

which

has

been

very

rapid ince th e declara-

tion

f

he war.

A ,000 .V.A. achine s

nder

construction

nd

ill e

hipped

o

th e

United

Stales

t

he

ermination

of

he ar.

H e expressed no surprise when

told

that

he

auen tation

as

eing

heard

by

an

rancisco

mateurs.

IMPORTANT NNOUNCEMENT

An

rticle

ertaining

o

he pera-

lion

f Commercial

nd

Government

land stations

on th e acific Coast

will

be

ublished

onthly

n

h is

maga-

zine.

Each

rticle

will be

llustrated

with

many

photographs

and

th e

most

inter-

esting rticles maginable.

In

this

way you will know just how

th e tation ooks

hat

you hear

every

day

nd

he

onditions

nder hich

their usiness

s

onducted.



PACIFIC ADIO E W S '

39

' TWA S

US I C

TO

IM

(

A

ragedy

n

O ne

Act)

Scene

Ocean iner's

assengers

asleep n ec k hairs ear

ireless

Room.

Time—1:50

a.

in.

Place—On

he

riny

eep, , 0 0 0

miles

ro m

oplace.

W ireless perator

tarts

otor-

generalor

and

alls

KPII

or

0

min-

utes

efore

signing ff,"

German

usician

awakens

rom

terrific oise

f

he

park):

Ach,

llimmel, ol onderlul moosik."

English

raveler

awakens

rom

combined oise

f

erman

usician

and

park):

What ally

ool

ou

are,

shut

up and

o

o

leep, you

alk

like

a

undle

of

loose

ax e

andles, that

deucedly

oisy

park

akes

ore

racket

h an n

levated

ram-car

all-

ing

off

he

rack."

(Beware,

ear

eader,

xpressions

of h is

character

were

he ery ea-

sons

or

he eclaration of he uro-

pean

ar.)

WANTED

MMEDIATELY

W

ireless

iction

tories

or

ublica-

tion n

h is

magazine.

hese

tories,

i t

ccepted, will e

aid or at

egu-

lar

ates.

f

h is

roposition ounds

interesling

o

ou ,

end

t

nce

or

our

ate

heet

nd

eneral nforma-

tion.

DO

OU KNOW

THAT

he

"•inenching"

of

a quenched park gap s not ue o th e

air-tight

losely

paced

parking

urfaces,

UT

o

he

adjustment

of

he coupling on

th e

Oscillation

ransformer?

THAT nly one variable ondenser s eeded n most udion ir -

cuits

o ak e

ulb

scillate,

nd

hat

h is

ondenser

should be laced n eries

with

he

grid?

THAT h e ecision

n

he

arconi-K ilbonrne

lark uit n

Seattle as

not

et een

anded

own?

THAT erkeley

mateur

ommunicated ith nother

mateur

in hoenix,

rizona.

a

distance

of

1 X 1

miles, with

a

W .

transformer and otary ap?

THAT

when

2

separate

aerial

leads

are

brought

into

a

tation

hev

should

never

be

ru n

parallel

to

each

other?

THAT here

are

nearly

5 (1

ships using

th e

I M PU LSE xcitation''

type

f

ransmitter n h e acific Coast?

THAT

h e

nly

il o

e

sed

or

ransformer

ooling

should

e

vegetable il?

THAT

he

atio if h e rimary oltage o econdary s called

be

Patio Of Transformation?

THAT

he

ines

f

orce h at

eak

cross

he ransformer

ore

without threading

th e

primary

and secondary

coils

s called

Magnetic

eakage?

THAT whenever an

mateur

ells ou is

ange

s , 0 1 X 1 miles, t

will

e

ecessary

o ak e

quare

oot

f

bis umber

and

divide

th e

answer

by

four

in order

to

ge l

is

correct range?



4ii

PACI I'M

ADIO

I-AVS

Custom

Mde

pparatus

Embodying he Latest mprovements

In

Radio

Detectors,

Receiving,

and

ransmitting

ets

| mm mm| *B

-

X.

i L.

i

vm

/MA

K

x}

Type

A-U.

00-4000 .

rice, 90.00

Tuner ype , 000-12

000 60.00

"De

Luxe"

Tuner

Type.

200-15.000 160.00

Special elected

Vacuum

Tubes

as

supplied

with

above

pparatus,

prepaid

7.50

Information

nd

rices

on uners.

Valve

Detectors,

Amplifiers

and Transmitters n equest

H

PRADO

Radio ngineer

7 9 8

POST

T .

N R A N C I S C O .

CAL.

When

writiic

o Advertisers

lease

neiilion

lils

Magazine



PACIFIC

ADIO F A V S

4 1

CLASSIFIED DVERTISEMENTS

In

he

ebruary,

917,

issue

he

PACIFIC

ADIO

NEWS"

will

inaugurate

heir

lassified

dvertisement

ection. his

ection ill

classify

ds nder arious eads uch s

Agents.

ooks

nd

eriod-

icals, usiness pportunities, ameras, hotography nd upplies,

Coins

nd

tamps,

lectrical,

ormulas,

or

ale, nventors

nd

Inventions,

Machinery

odels

and

Tools. M iscellaneous, Motorcycles,

Motion

Picture

Plays,

M otors,

Engines,

Generators

etc..

Music.

Songs.

Musical nstruction,

atents,

atent ttorneys, ennants,

ictures

and

ostcards, rinting ultigraphing

nd ngraving,

elegraphy,

Typewriters nd

upplies, WIRELESS,

elp Wanted, nd

s

many

more

heads

as

are demanded.

T h e ates are cents

er

word

net.

emittance, n he orm

f

currency,

money

order

or

stamps,

must

ccompany

h e

copy.

dver-

tisements

or the ebruary,

917,

ssue must each

s

before

January

1st

n

order o nsure

lassification.

n ounting words ount ame

and

address.

T h e

"PACIFIC ADIO

E W S " ,

being

he

nly

ublication eal-

ing

with

he

art f

adio elegraphy

nd adio ngineering n he

Pacific

Coast

nd

ot eing onnected

with

ny corporations which

prejudice

h e ditorial olicy f he ublication,

njoys

irculation

far

xceeding hat

f

ny

other ublication

f

ike ature nd with

prospects

of

gaining

an

even arger

circulation.

t

will pay you

to

try

this advertising section.

PACIFIC ADIO

UBLISHING O.

5 0 M A IN

ST. ,

S AN

F R A N C I S C O ,

CAL.

a

ow

5

e

WRELESS

fellow

Amateurs

QS T s

the

mateur maga-

zine;

the contents are written

fo r

us

mateurs,

y

amateurs

who

now

he Real Dope".

QST

with

its

sixty-four

pages

of adio

rticles

s he

nly

thoroughly mateur ireless

magazine. rder oday

nd

see.

$1.00

per

year; 0

cents

per

opy

The

Q S T

Publishing Company, Inc.

2 5 akland errace,

Hartford,

Conn.

v

i/t'si

s?

-/

&

This

fellow

reads

"D

5T

When

writing' o Advertisers lease mention

his Magazine



4-' ACIFIC

ADIO EWS

16^0 S$H^BtSiK 5l55$=5iR3£E

ELECTRIC ONDENSERS OR RODUCING

IGH

FREQUENCY LTERNATING URRENTS

—and—

The

orious

ays t d

P

H

will e he pecial eatures

f

the

FEBRUARY

SSUE

Extracts

ro m

he og ook,

ide-Splitting

artoons, oetry,

nd

a

ew

nteresting

stories written

by the

ld

Timers"

SUBSCRIBE

ODAY

T he well nown adio

Engineers

re writing or

his magazine

WRITTEN

O

HAT

V E R Y B O D Y

AN

UNDERSTAND T

N ot

echnical

angle,

not

Simple

imon"

tory ook, ut

magazine hat

ill et he ntire adio world hinking

Send your dollar

TOD A Y,

you

will

be

ure

to orget t tomorrow.

Please

o

ot

end

tamps.

Tear long this line.

pacific

\a6lo

P.

.

FENNER, Manager

5 0

M A I N

STREET.

AN R A N C I S C O .

CAL.

9.

I ereby

ubscribe

o he PACIFIC

ADIO EWS" or

ears

o

tart

ith

he ssue.

Subscription

rate:

igned

$1.00

per

ear,

0

treet

payable n dvance.

ity

r own

Make all hecks ayable o h e

Pacific

adio

ublishing

o.

tate.

When writing o Ailvertisers lease

mention

h is Magazine



PACIFIC ADIO

EWS 3

A

HEART

TO

HEART

TALK

WITH

OUR

ADVERTISERS

To

begin

at

the

beginning,

the

editorial and managing staff

of

he

Pacific Radio News" wishes

o

hank

he

advertisers

who have avored us

with

advertisements for the

first

ssue 01

this

magazine.

ithout

the

slightest

doubt, ew

of

our

adver-

tisers

really

knew what

the

initial issue

of

this

magazine

would

amount

o, nd e eel

assured hat ll f ur

claims

ave

been

ustified.

As

reviously

tated, his agazine

ill

e

ublished

monthly

f

he

equired

umber

f

dvertisements

re

e-

ceived,

he

circulation

of

he

magazine

will

ncrease,

and

he

manufacturer

will

ertainly eceive is

hare

f

he

enefit.

Without

dvertisements

t

ould

be

mpossible o

ublish

magazine f

uch roportions

as he Pacific adio ews,"

and were it not

for

the

fact that our

advertisers

were far-seeing

men,

hey

ould ot ave

avored

s

ith heir dvertise-

ments. hey were all well aware of

the

act hat he pubiica-

tion

would be

a huge uccess

and

have

done

everything

pos-

sible to make t

so.

his magazine will have one

of

he largest

subscription ists of

any

of its kind

in

existence,

we

can

safely

guarantee

wice

he

irculation

ithin he

ourse

f hree

months.

adio

and

electrical

men

rom

all

parts

of

he

coun-

try

will subscribe

o

t and

ull eturns

or

all

advertisements

will

e sure to follow.

e

equest all manufacturers o write

for

our advertising proposition

at

once

n

order

hat

better

magazine

may be published. t

s

almost next

o

mpossible

to

each all manufacturers

n

he

country

even

though

a arge

majority

have

been

notified

of he

publication

of he

Pacific

Radio ews."

Any

advertisement

that

will

be

of

general

nterest

to radio,

electrical nd elegraph

perators,

ill

e

ublished

n he

magazine.

Get

n

ouch with our Advertising

Manager,

0

Main

St.,

San

Francisco.

Cal.,

and ask or our

excellent

proposition

e-

garding

advertisements.

Start

he

New

Year ight,

ubscribe

o he

acific

Radio ews,

et

he

ACTS—read

he

ascinating

stories

nd

housand nd

ne

ther

hings hat

ill

make his

publication he

greatest

uthority

on

Radio

Communication

n

he

Cnited

tates.

Make his

your

irst and greatest New

Year's

eso-

lution.

ou re oing

ourself

reat

njustice

y

neglecting

o

subscribe

at

O N C E ,

When wrlllng o Advertisers lease

menilon

ids

Magazine



- 1 4

PACIKIC

ADIO

K W S

A

Proposition

Worth

Considering

W e

have

introduced

th e best

radio

publication to

our readers

and

th e

next great

tep

to

ake owards

ncreasing

he ircula-

tion f

this magazine

will e

to

appoint

a

umber

of live adver-

tising

nd

ubscription

gents.

f

ou

re

nterested

n

h is

magazine,

if

ou wish o make ittle ide money uring your

spare

ime, f

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ish

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P.

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usiness

Manager Pacific

adio

ews'".

5 0 Main treet, an

rancisco.

Cal.

ype A rystaloi

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re

entral

West

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E.T.

TurneyApparatus

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e

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ive

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PACI I'lC ADIO EWS

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To

WrelessAge

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Chance

to

Snbscribe

at

be Old Rates

The aper

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AGE s printed as

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e

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ld

ates.

rom

ow

p

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9 1 7 ,

ONLY,

we

will

ccept

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ffer

made

elow

or

our

new

ooks,

which

we

will

soon ring ut:—

D r . Goldsmith

f

he nstitute

f

adio

ngineers,

nd

irector

of

he

Radio aboratory f the ollege f

th e

City of ew York, as

for

th e

ast

year

een

onducting xhaustive

esearch

work n

adio

elephony.

e

has

ade

iscoveries

f reat mportance.

he

esults

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h is

esearch

work

will e resented xclusively n H E

WIRELESS

AGE

n eries f

articles

eginning n anuary,

9 1 7 ,

ssue. he

omplete

eries,

rofusely

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e

ublished

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orm

arly n 9 1 7 . rice n

loth,

$ 1 . 2 5

per

copy.

eady

arly

n

9 1 7 .

M r .

. .

ucher,

nstructing

ngineer

n

harge

f

th e

Marconi

chool

of nstruction,

as

ust

ompleted n ndispensable ook

or ll

ireless

operators nd

mateurs who esire

o

now

what's what

n

he atest

nd

most

dvanced

ommercial

wireless

ractice.

he

ook, alled Practical

Wireless

elegraphy." s ery ompletely llustrated, nd

overs

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tions,

nstructions,

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andling

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ll

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ewest

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oi

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ctually

eady or se

ntil

9 1 7 .

his

ook

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omplete

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etail

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rice,

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cloth. eady

about

January

st.

Major

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ndrew

hite,

hief

ignal

fficer

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he

unior merican

Guard,

and

Editor

of

TH E

WIRELESS

AGE,

has been

at

work

many

months

to

f i l l

ong

felt

want

of

a Military

ignal

Corps

nstruction

ook, repared

especially to enable the ational Amateur Wireless Association o carry ut

one

of

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principal urposes

of ts

organization—the

Third ine

of ational

Defense.

his

ook

s

erhaps

he ost mportant ne we will ublish.

There

s o

ignal

Corps

ook

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xistence

oday h at overs n nything

like

n

dequate

way

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nformation

iven n h is ook.

rice,

0 c . er

copy. eady n

anuary.

SPECIAL

N ADVANCE

OF UBLICATION UBSCRIPTION

OFFERS

G O O D

ONLY

O

ANUARY

st,

1 9 1 7

With

fter

WIRELESS

AGE

an .

One Year

st

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oldsmith's

Radio

elephony"

1.25

2 . 2 5

2 . 7 5

Mr. . . ucher's Practical

ireless

Telegraphy" 1 . 2 5

2 . 2 5

2 . 7 6

Major White's

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5 0

1 . 7 5

2 . 2 5

OTHER UBSCRIPTION

OFFERS

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ear

ook

f

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Telephony 1 - 5 0

2 . 2 5

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1 9 1 5

and 1 9 1 6

Year

ook

1

copy

each) 3 . 0 0

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o

ass .

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overnment ireless

License

xams 0 1 . 6 0 2 . 1 0

How

o

Conduct

adio

Club

0 1 . 6 0 2 . 1 0

These

offers

are

open

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oth

ew

nd

ld

ubscribers.

The

Wreless Age

2 Broad

'

N

w

Yorfe

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menU.nt

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Magazine



PACIFIC ADIO F . W S

4 7

The Publishers

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Pacific

Radio

News

extend heir est wshes or

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Pacific Radio Vol 1 1 Jan 1917

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Transcript of Pacific Radio Vol 1 1 Jan 1917