[Moon-net] Need advise on SDR+Winrad+WSJT

Gabriel - EA6VQ ea6vq_ml at vhfdx.net
Fri Nov 2 03:32:35 CST 2007


I'm considering buying an SDR-IQ to begin experimenting with SDR for JT65B
EME.   My idea would be to use Winrad (or might be the Windows version of
Linrad) running ON THE SAME PC that WSJT (using the "Virtual Audio Cable"
software to reroute the audio output of Winrad to WSJT).

What's you opinion about this configuration?  Should it work properly,
provided that the PC is fast enough?

I have already tried this configuration (taking the audio signal from my
normal SSB receiver, as I still don't have any SDR) and the rerouting of the
audio is working, although I have noticed a poblem that I don't know how to
solve. When I click on a signal in Winrad, the audio passed to WSJT is not
what the program expects, but it's passed in a much lower frequency.  I have
to click (in Winrad) much to the left of the signal (sync tone) so that the
audio passed to WSJT is what WSJT needs (this is, a sync tone around 1300
Hz).

Any ideas?

73. Gabriel - EA6VQ
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