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Re: AO-51 telemetry



Hi Ed,
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:
>Folks,
>
>Can I use a soundcard TNC connected to a radio to receive the 9600 telemetry
>from AO51 or must I have a hardware TNC?
>
>73,
>
>Ed
>
>KC9GWK
>Grid EN52
>
>AmSat Member
>
>
>
>
>
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