[amsat-bb] Repeater interference on AO-92

tjschuessler at verizon.net tjschuessler at verizon.net
Tue Apr 28 02:15:03 UTC 2020

Do be aware that the repeater that might be causing the interference may
actually not be running 67Hz tone.  The Fox satellites do need to hear 67 Hz
to wake the transponder, but after that it is a bent pipe.  Thus, as long as
it got woke up, it would pass whatever FM it hears.  


Like the apparent DMR interference we dealt with several months ago, it's
folks who think that it is "Clear air" down there and do their own thing.  


Hopefully someone with a scanner can locate and politely pass along some



Tom Schuessler, N5HYP




Date: Mon, 27 Apr 2020 08:55:51 -0400

From: Stephen DeVience <sjdevience at gmail.com <mailto:sjdevience at gmail.com> >

To: amsat-bb at amsat.org <mailto:amsat-bb at amsat.org> 

Subject: [amsat-bb] Repeater interference on AO-92


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Following up on the previous discussion, I too heard a ragchew on AO-92

during the 4/26 15:20 pass, and others heard it on the 4/27 02:00 pass. I

checked for repeaters in New England with a 67 Hz CTCSS tone, and W1RJC in

New Bedford comes up. Its output at 145.110 MHz also uses a 67 Hz tone and

would have a third harmonic at 435.330 MHz, just about right for AO-92

considering doppler. It is also consistent with hearing a NH callsign and

discussions about sea vessels :)


-Stephen, N8URE




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