[amsat-bb] PSAT: Breaking its "squelch"

Bob KD7YZ kd7yz at denstarfarm.us
Wed Jun 3 10:55:52 UTC 2015

I noticed on a few passes that during the time I can see/decode/hear the
ADO Beacon, that if I transmit on 28.120, I can then see what looks to
be my downlinked PSK31 signal.

There IS Doppler drift on it, fwiw. If I keep repeating the CQ PSAT,
then I still hear the telemetry from PSAT (usually ADO) and I see one or
two other stations.

But if that downlink stops, then no mater who long i transmit, that PSAT
"squelch" is not broken; I never hear or see the ADO beacon.

Somehow something else breaks that squelch then my CQ-ing appears on the
now-open WF.

I am using MIXW 3.1.1, a SignaLink on K3(28.120) and a Signalink on the

Are my settings bad?


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