[amsat-bb] AO-85 telemetry hints

Mark L. Hammond marklhammond at gmail.com
Fri Oct 9 10:33:46 UTC 2015

Hi All,

On the 10utc pass this morning, while the transponder was on and in use: 

I learned that reducing the width of the cutoff filter in Foxtelem program made it so I could copy the subaudible telemetry packets with the Funcube Dongle Pro.  Reducing from the default 200 Hz to about 180 or 175 seemed to work here.  It shows up as a decent eye pattern after that.

Another FYI-When playing back an IQ recording via SDR#, it seems a bit more forgiving, working well around 175-200.

Suggest folks experiment for best copy! Share hints here, please!


Mark L. Hammond  [N8MH] 

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