Grayland vs. Sans Souci Late July 2012, 13 and 14.

Grayland vs. Sans SouciLate July 2012, 13 and 14

46.8009996 , -124.0979172

44.1156463, -124.1161664

Grayland Sans Souci

Location Grayland is ~ 90 miles west-southwest of Seattle.

Sans Souci is ~ 200 miles due south of Grayland, WA and ~ 50 miles due west of Eugene, OR

Altitude ~ 10 ft. ASL ~ 800 ft. ASL

Ocean Proximity Within a few hundred feet

Within a half mile

Topography Flat, flat, flat ~ 15 deg. Slope towards Ocean

Receiver Perseus Perseus

Antenna[see next page]

DKAZ DKAZ

Year Antenna type

2012 128’ DKAZ fixed Rt

2013 140’ DKAZ remote Rt

2014 160’ DKAZ fixed Rt

Number of unique stations heard from both locations over same week in each of 3 consecutive years

2012 2013 2014Grayland Sans Souci Grayland Sans Souci Grayland Sans Souci

Australia 19 28 26 27 27 39New Zealand 28 23 22 26 30 * 30Hawaii 14 17 11 14 16 14

* total excludes exceptional cx 7/25/14

Grayland Sans SouciAustralia 49 61New Zealand 48 * 48Hawaii 24 24

* total excludes exceptional cx 7/25/14

Total unique stations heard from both locations over 3 years

Grayland Sans Souci days overlap2012 7/31/12

8/1/12 8/1/12 8/2/12 8/2/12 2

2013 7/21/13 7/23/13 7/24/13 7/25/13 7/26/13 0 *

2014 7/20/14 7/21/14 7/22/14 7/22/14 7/23/14 7/24/14 7/25/14 1 **

* over-tightened wire nut on CAT5 remote Rt cable

** short power outage caused CPU to recycle and neither Perseus nor Mestor s/ware set to auto-boot

Daily Differences

Grayland, Aug. 1, 2012, 1300utc


765Radio KahungunuNapier, NZGrayland, Aug. 2

792ABC/RNBrisbane, AUSGrayland, Aug. 2

783Access RadioWellington, NZGrayland, Aug. 2

Site Differences


Sans Souci, Aug. 1, 2012, 1300utc

774ABCMelbourne, AUSSans Souci

792ABC/RNBrisbane, AUSSans Souci

5852WEB, Outback RadioAlice Springs, AUSSans Souci

What I have learned• Sans Souci may well be a ‘better’ location for hearing

Australia than Grayland in the summer• Domestic station interference is a larger factor in

determining what you’ll hear than wanted signal strength at these similar coastal locations

• Short-term fade patterns and daily variation between the two sites hides long-term trends

• Murphy is EVERYwhere!– The unattended listening location – Grayland - was subject to –

over-twisted wire nuts (2013) & a power outage (2014)– ‘back home’ was subjected to Mac/PC – USB/Thunderbolt

incompatibilities resulting in lost files

References

• www.gcmap.com - for great circle bearings & distances

• Google maps - for sat views of prospective DXpedition sites

• Sound samples from DXpeditions– http://realmonitor.com/am_logs_grayland6.php– http://realmonitor.com/am_logs_grayland8.php– http://realmonitor.com/am_logs_grayland10.php

• This presentation– http://realmonitor.com/fort-wayne-2015/

Grayland vs. Sans Souci Late July 2012, 13 and 14.

Documents

Transcript of Grayland vs. Sans Souci Late July 2012, 13 and 14.