[amsat-bb] Re: ARISSat TLM decoding using FCD

Mark L. Hammond marklhammond at gmail.com
Tue Aug 9 13:33:15 PDT 2011

Hi Floyd,

Yes, you can.  Recording the full 80kHz bandwidth for a 10 min pass
(duration of ARISSat-1 passes, roughly) creates a BIG wavefile around 250MB
in size.  You can play it back and decode whatever you want, whenever you
want.    I've  been doing that regularly, which results in about 1GB per day
(4 passes recorded per day, on the average).   Heh.

On one playback, I might decode the FM signal for SSTV pics.  On another
playback, I might try to pull some telemetry out.  On yet another playback,
I might listen around the linear transponder.  It's really slick.

Surely we could pick out what we REALLY wanted and do a recording of that
output...but I haven't bothered to do so.  I'm content playing back and
decoding whatever I want...


Mark N8MH

On Tue, Aug 9, 2011 at 4:13 PM, Floyd Rodgers <kc5qbc at swbell.net> wrote:

> Is it possible to record all the transmissions in a single wave file
> using FCD and separate the FM, telemetry, ssb, and SSTV later after the
> bird is gone?
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Mark L. Hammond [N8MH]

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