[amsat-bb] DUV using the Kenwood TS-2000x
Lisa R. Nelson
lisa50469 at gmail.com
Tue Sep 11 21:20:53 UTC 2018
Love my new radio, BUT it seems the audio output on the ACC2 connector
pin 3 (MANO) has some filtering on it. It's also only present when the
squelch is open. On my V71A, there's a signal called "PR9 Output 9600
(bps) repeat signal" which is always present regardless of squelch etc.,
and works very well for tapping the audio for DUV detection.
I did discover that I could get a EYE diagram (kinda) after turning the
'Lo/Width' knob all the way down. So I believe that means that the
radio is filtering the MANO output which it shouldn't....
Has anyone modified the TS-2000 to tap into the audio before it is
filtered? I hear this was a practice for a long time. Just assumed
Kenwood would have provided a better output for work like this.
Then again I easily could be overlooking something simple... if so,
please tell me! Attached is the EYE diagram.
Thanks,
Lisa AK7WS
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