[amsat-bb] Delfi-c3 Telemetry Capture & Decoding
clivew at zetnet.co.uk
Sat Oct 18 00:47:59 PDT 2008
I am trying to get some telemetry from DO-64 while it is in this mode.
Unfortunately I missed the the initial period of TLM just after launch,
owing to other problems. By the time I had solved these, DO-64 had
switched into transponder mode!
I've managed to get some packets using my hardware PSK decoder (G3RUH)
and PK-88 TNC in KISS mode. However, I can't find any information about
the format of the data or any telemetry equations. Where are these
I've had less success with RASCAL. It appears to be working, and I get
short periods when it locks onto the signal, but no packets received.
The indicated frequency seems to vary widely, and sync is often lost
when a packet is transmitted.
Is the audio clip on the Delfi-C3 website suitable for use as a test
signal? I have a better sound card, so I may try that.
Any help would be most appreciated.
Hitchin, North Hertfordshire, UK.
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