[amsat-bb] Repeater interference on AO-92

[Stephen DeVience]

Thanks Burns, that's a great explanation of the tones. In that case it
could be any of the 145.11 repeaters in that region on a third harmonic, or
someone who picked the uplink frequency for an uncoordinated repeater, as
has been mentioned.

-Stephen

On Tue, Apr 28, 2020 at 8:47 AM Stephen DeVience <sjdevience at gmail.com>
wrote:

> I listened to that Satnogs recording again, and I hear a single beep
> courtesy tone between transmissions from each person, so I think it's a
> repeater. It has some points where the repeater conversation stops and then
> appears to bring up the satellite again, so I would think it needs to match
> the tone. Maybe someone here can better explain how the Fox tone squelch
> works, for example how long it stays on after hearing a tone.
>
> The repeater that I suspect has echolink, so maybe I can get on it during
> a pass and get a recording.
>
> -Stephen, N8URE
>
> On Mon, Apr 27, 2020 at 11:05 PM nathanjwhite <nathanjwhite at frontier.com>
> wrote:
>
>> A couple of weeks ago we identified 2 stations overheard on AO-92 with
>> apparent Boston area QTH (Waltham and Harvard) but still no indication of a
>> repeater.
>> AMSAT has a recording of the pass.
>>
>> Nate
>> N5LEX
>>
>> On Monday, April 27, 2020, 10:44 PM, Mike Diehl via AMSAT-BB <
>> amsat-bb at amsat.org> wrote:
>>
>> Cool, it’s challenging because the length of passes aren’t much longer
>> than the interval to ID. It’s frustrating but perseverance pays off.
>>
>> 73,
>> Mike Diehl
>> W8LID/VE6LID
>>
>> > On Apr 27, 2020, at 22:37, Brian Wilkins KO4AQF <bwilkins at gmail.com>
>> wrote:
>> >
>> > 
>> > That’s what I meant. Thanks Mike. Already been communicating with
>> Glasbrenner
>> >
>> >> On Mon, Apr 27, 2020 at 10:32 PM Mike Diehl <diehl.mike.a at gmail.com>
>> wrote:
>> >> AMSAT can only sort it out with the help from users, they have no
>> magic wand. Through a process of elimination the region the offender is
>> located in can be narrowed down by figuring out a common footprint.
>> Continued monitoring can also reveal a repeater or user ID. This process
>> has been used in the past to track down offenders. Keep listening and
>> forward any call signs you hear, AMSAT will definitely reach out to them.
>> Also, recordings help.
>> >>
>> >> 73,
>> >> Mike Diehl
>> >> W8LID/VE6LID
>> >>
>> >> > On Apr 27, 2020, at 22:07, Brian Wilkins KO4AQF via AMSAT-BB <
>> amsat-bb at amsat.org> wrote:
>> >> >
>> >> > I heard it too at the same time-ish maybe about 1532z though from
>> Florida
>> >> > on a 4/26 pass from the North to South. Hopefully AMSAT can sort
>> this one
>> >> > out
>> >> >
>> >> >> On Mon, Apr 27, 2020 at 9:22 AM Stephen DeVience via AMSAT-BB <
>> >> >> amsat-bb at amsat.org> wrote:
>> >> >>
>> >> >> 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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>> >> > --
>> >> > Brian Wilkins
>> >> > KO4AQF
>> >> > _______________________________________________
>> >> > Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum
>> available
>> >> > to all interested persons worldwide without requiring membership.
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>> >> > are solely those of the author, and do not reflect the official
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>> > --
>> > Brian Wilkins
>> > KO4AQF
>> _______________________________________________
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>> to all interested persons worldwide without requiring membership.
>> Opinions expressed
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>>