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[aprssig] Clueless WA4SZE Beacon Trashing 30M HF APRS

Earl Needham earl.kd5xb at gmail.com
Fri Oct 22 09:11:00 UTC 2010


I googled his call and he's pretty interesting. Really into beacons, with a 10-meter beacon and an aviation NDB on 530 KHz.  Also owns a Cessna 150 with a 150-HP engine!

Interesting how much aviation seems to interact with APRS, what with the trackers that sometimes identify and sometimes don't, and now this beacon.  I GUESS they could have more effect if they tried. Maybe.

Vy 7 3
Earl
KD7XB-11

KD5XB -- Earl Needham http://groups.yahoo.com/group/cw_bugs Quoting from the Coast Guard: ZUT Posted via Blackberry

-----Original Message-----
From: "Stephen H. Smith" <wa8lmf2 at aol.com>
Sender: aprssig-bounces at tapr.org
Date: Fri, 22 Oct 2010 01:38:23 
To: TAPR APRS Mailing List<aprssig at tapr.org>
Reply-To: TAPR APRS Mailing List <aprssig at tapr.org>
Subject: [aprssig] Clueless WA4SZE Beacon Trashing 30M HF APRS

About 3 or 4 days ago, WA4SZE started operating a non-stop 24-hour beacon on 
10.149.100 MHz.   This seems to be a stepped-power beacon similar to the 
NCDF/IARU propagation beacons on the higher frequencies  This signal, 
originating from Manchester TN, is now disrupting the 10.149.200/.400 FSK APRS 
channel over a large part of North America.

Here on the west coast, this signal is peaking at S7-S8 for many hours each 
day, triggering the AGC on my 30M APRS igate receiver, rendering most APRS 
signal un-receivable.    Being only 100 Hz below the lower of the two tones for 
APRS FSK, there is no practical way to notch this signal out  of the receiver 
IF passband without damaging the FSK signal.



Details from QRZ.com:

David L Frantz Jr
691 Brandon Road
Manchester TN 37355
USA



wa4sze at gmail.com <mailto:wa4sze%40gmail.com>






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