[amsat-bb] AO-73 Telemetry Question

Paul Stoetzer n8hm at arrl.net
Tue Aug 12 22:10:11 UTC 2014

The signal in that graphic seems strong enough to decode.

The best way to use HDSDR or any SDR program with the FUNcube Dashboard is
with a Virtual Audio Cable driver like this (
http://vb-audio.pagesperso-orange.fr/Cable/). Then you set your SDR
software audio output to the VB-Cable Input (which looks like an additional
sound card on your system) and set the FUNcube Dashboard soundcard input to
VB-Cable Output.

I also decode and upload telemetry by recording audio of passes with my
FT-817 onto an audio recorder and using VLC Player to output the audio to
the VB Cable. I decoded and uploaded 60 frames from half a pass of
FUNcube-2 on UKube-1 last night that way.


Paul, N8HM

On Tue, Aug 12, 2014 at 5:18 PM, Thomas Doyle <tomdoyle1948 at gmail.com>

> Hi,
> Recorded an AO-73 telemetry pass (RF recording)  this morning with HDSDR.
> Later fed it from HDSDR into the sound card and then to the FCD Dashboard
> (see pic). It appears the signal is making it to the Dashboard but nothing
> seems to happen. I tired (Auto Tune) on/off, and narrowing the bandwidth of
> the HDSDR filter to better match the bw of the signal but still nothing. It
> does seem to lock on to the (Detected Frequency 2262 Hz) but that's about
> all it does. The Dashboard is brilliant and I would like to get it working.
> Due to deed restrictions no outside antennas are allowed so the signal is
> not that strong here (about 5dB above the noise) and it might never work
> from here. Any suggestions will be appreciated. Any suggestions that we
> move to a new neighborhood that allows outside antennas will be forwarded
> to my wife :-)
> http://www.tomdoyle.org/dashboard1sm.png
> Tnx W9KE Tom Doyle
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