[amsat-bb] Re: AO-51 telemetry
brucesemple at verizon.net
Wed Dec 19 11:16:22 PST 2007
I have not done it recently (I mostly work with GO-32), but I was
using my laptop soundcard and MixW to decode AO-51 9K6 downlink.
The biggest issue with 9K6 audio is that it will not pass through the
normal audio filtering circuits in your transceiver. Your
transceiver needs to have a
"data in/out port -- or have some internal switching circuitry to
allow the computer sound card (or an external TNC for that matter
) "direct" access to the FM detector (for receive) and the varacter
for transmit - (ie -- no normal audio filtering / conditioning
circuits in the path)
At 01:29 PM 12/14/2007, Ed Tump wrote:
>Can I use a soundcard TNC connected to a radio to receive the 9600 telemetry
>from AO51 or must I have a hardware TNC?
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