[amsat-bb] Re: Delfi-c3 Telemetry Capture & Decoding
clivew at zetnet.co.uk
Mon Oct 20 07:23:13 PDT 2008
Gerard wrote -
>We have not published the telemetry format and conversion equations at
>this point. The reasoning behind this is that all this has been
i>ncorporated in RASCAL, so you can just read if off the screen there.
Understood, but this would appear to encourage 'black box' operating,
and discourage experimentation and self learning, which is what amateur
radio and AMSAT is all about.
>I would like to try some of my own software, which I've successfully
>used on other AMSAT >birds in the past. I would need to modify this to
>accept changes to the telemetry format and >equations.
Could you please tell me how I can get this information.
>Unfortunately, tuning and getting RASCAL to lock properly turned out be
>harder than we thought. Therefore we have written a small manual on our
>website and you can find it at http://www.delfic3.nl/rascal/ under
Yes, I've studied this.
>The audio clip on our website is perfectly suited for this purpose and
>has in fact been used by >ourselves and many radio-amateurs to get
>their set-ups up and running.
Thanks for this information. I've now recorded the audio on tape, and
RASCAL appears to be decoding it OK. The data copied from the terminal
window looks similar to that received from the satellite last week, and
decoded by my hardware PSK modem & TNC.
Hitchin, North Hertfordshire, UK.
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