Introduction to Amateur Radio - Dartmouth Engineer Current...
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7/26/12 1 Introduction to Amateur Radio Eric Hansen, KB1VUN Amateur Radio is a licensed service You must have a license Three license categories, different privileges Licenses are issued by the FCC, exams are administered by volunteers Multiple-choice exam questions cover theory, rules, and operating practices Amateur radio is a public service Emergency communication when normal infrastructure is broken Communication for other events, e.g., The Prouty But emergencies are rare, everything else is direct or indirect practice Largely self-policing, but FCC will prosecute abusers
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Transcript of Introduction to Amateur Radio - Dartmouth Engineer Current...
7/26/12
1
Introduction to Amateur Radio Eric Hansen, KB1VUN
Amateur Radio is a licensed service You must have a license Three license categories, different privileges Licenses are issued by the FCC, exams are administered by volunteers Multiple-choice exam questions cover theory, rules, and operating practices
Amateur radio is a public service Emergency communication when normal infrastructure is broken Communication for other events, e.g., The Prouty But emergencies are rare, everything else is direct or indirect practice Largely self-policing, but FCC will prosecute abusers
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Ham radio vs other services you may know about Commercial broadcast radio AM: 520-1610 kHz, 10 kHz channels, 50 kW limit, licensed FM: 87.5-108.0 MHz, 200 kHz channels, 100 kW limit, licensed
Citizens Band: 26-27 MHz, 40 channels, 4-12 W (depending on mode), no license
Family Radio Service (walkie-talkies): 462 & 467 MHz, 14 channels, 500 mW, no license
Amateur radio is licensed, two-way (no broadcasting), up to 1.5 kW (mostly), variety of frequency bands. Must be unencrypted, noncommercial, no music. Also supposed to be non-profane and non-political, but…
Operating modes Analog (speech) AM (nearly obsolete) Single sideband (SSB, better version of AM) FM
Digital Morse code (CW) Radioteletype (RTTY) More advanced digital modes, including digital voice Although digital data is “coded”, it is not encrypted. Anyone with the right
equipment can listen in.
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80m 40m
160m
20m 15m 10m 17m 12m 30m
6m 2m 1.25m
70cm 23cm 33cm
HF
VHF
UHF
http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf
Amateur radio bands
200 Watts PEP
E = Amateur ExtraA = AdvancedG = GeneralT = TechnicianN = Novice
= RTTY and data= phone and image
= SSB phone= CW only
= USB phone only
= Fixed digital message forwarding systems only
KEYNote: CW operation is permitted throughout all amateur bands except 60 meters.
MCW is authorized above 50.1 MHz, except for 219-220 MHz.
Test transmissions are authorized above 51 MHz, except for 219-220 MHz
Copyright © ARRL 2007 rev. 4/21/2010
US AMATEUR POWER LIMITSAt all times, transmitter power should be kept down to that necessary to carry out the desired communications. Power is rated in watts PEP output. Except where noted, the maximum power output is 1500 Watts.
See ARRLWeb at www.arrl.org for detailed band plans.
ARRL Headquarters: 860-594-0200 (Fax 860-594-0259) email: [email protected]
Publication Orders: www.arrl.org/shop Toll-Free 1-888-277-5289 (860-594-0355) email: [email protected]
Membership/Circulation Desk: www.arrl.org/membership Toll-Free 1-888-277-5289 (860-594-0338) email: [email protected]
Getting Started in Amateur Radio: Toll-Free 1-800-326-3942 (860-594-0355) email: [email protected]
Exams: 860-594-0300 email: [email protected]
Effective DateMay 6, 2008
US Amateur Radio Bands Published by:
225 Main Street, Newington, CT USA 06111-1494www.arrl.org
™
160 Meters (1.8 MHz)
1.800 1.900 2.000
E,A,G
MHz
Phone and Image modes are permitted between 7.075 and 7.100 MHz for FCC licensed stations in ITU Regions 1 and 3 and by FCC licensed stations in ITU Region 2 West of 130 degrees West longitude or South of 20 degrees North latitude. See Sections 97.305(c) and 97.307(f)(11). Novice and Technician licensees outside ITU Region 2 may use CW only between 7.025 and 7.075 MHz and between 7.100 and 7.125 MHz. 7.200 to 7.300 MHz is not available outside ITU Region 2. See Section 97.301(e). These exemptions do not apply to stations in the continental US.
18.168 MHz18.11018.068
17 Meters (18 MHz)
E,A,G
20 Meters (14 MHz)
14.000
14.025 14.15014.175
14.225
14.350 MHz
EAG
14.150
33 cm (902 MHz)
902.0 928.0 MHz
E,A,G,T
*
70 cm (420 MHz)
420.0 450.0E,A,G,T
MHz
*
6 Meters (50 MHz)
50.0
50.1
54.0E,A,G,T
MHz
2 Meters (144 MHz)
144.0
144.1
148.0E,A,G,T
MHz
23 cm (1240 MHz)1240
1270 1295
1300
N (5 W )E,A,G,T
MHz
1.25 Meters (222 MHz)
219.0 220.0222.0 225.0
E,A,G,T
MHz
30 Meters (10.1 MHz)
10.100 10.150 MHz
E,A,G
Avoid interference to fixed services outside the US.Avoid interference to radiolocation operations from 1.900 to 2.000 MHz
12 Meters (24 MHz)
24.890 24.930 24.990 MHz
E,A,G
10 Meters (28 MHz)
28.000
28.000
28.300
28.500
29.700 MHz
E,A,G
General, Advanced, and Amateur Extra licensees may use the following five channels on a secondary basis with a maximum effective radiated power of 50 W PEP relative to a half wave dipole. Only upper sideband suppressed carrier voice transmissions may be used. The frequencies are 5330.5, 5346.5, 5366.5, 5371.5 and 5403.5 kHz. The occupied bandwidth is limited to 2.8 kHz centered on 5332, 5348, 5368, 5373, and 5405 kHz respectively.
60 Meters (5.3 MHz)
*
80 Meters (3.5 MHz)
3.500
3.525
3.600 3.700
3.800
4.000
N,T(200 W )
N,T(200 W )
N,T(200 W )
N,T(200 W )
GAE
MHz
3.600
5330.5
USB only2.8 kHz
5346.5 5366.5 5371.5 5403.5 kHz
E,A,G(50 W )
40 Meters (7 MHz)
7.000
7.025
7.125
7.175
7.300
E
MHz
AG
7.125
15 Meters (21 MHz)
21.000
21.025
21.200
21.225
21.275
21.450 MHz
EAG
21.200
N (25 W )
All licensees except Novices are authorized all modes on the following frequencies:2300-2310 MHz2390-2450 MHz3300-3500 MHz5650-5925 MHz
10.0-10.5 GHz24.0-24.25 GHz47.0-47.2 GHz76.0-81.0 GHz
122.25-123.0 GHz134-141 GHz241-250 GHzAll above 275 GHz
*Geographical and power restrictions may apply to all bands above 420 MHz. See The ARRL Operating Manual for information about your area.
http://www.arrl.org/files/file/Hambands_color.pdf
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Amateur Radio in Practice Local amateur radio 2m and 70cm FM voice and data Line of sight, range extended by repeaters: one inbound frequency, one
outbound frequency
Distant amateur radio HF and 6m (occasionally higher), skywave / ionosphere Contests, DX, “rag chewing”
Experimental amateur radio UHF, microwave, earth-moon-earth, etc.
What does W1ET have? Icom IC-736 HF / 6m all-mode transceiver
Yaesu FT-847 HF / 6m / 2m / 430 MHz all-mode transceiver
Two VHF all-mode transceivers
Three VHF / UHF FM transceivers (for local communications)
HF and VHF antennas
Currently, no “shack” space — plan to operate “portable” through the summer, then make longer-range plans in the fall.
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Upcoming exam sessions Find an exam near you:
http://www.arrl.org/find-an-amateur-radio-license-exam-session
Exam fee is $15. If you pass, you may take the next exam on the spot, for no additional charge.
