Graham, The receive audio level should be in the green area of the level bar. If it goes RED it can overload the sound card and decrease the decoding. In the
Message 1 of 5
, Dec 24 8:05 AM
The receive audio level should be in the green area of the level bar.
If it goes RED it can overload the sound card and decrease the decoding. In the
blue you don’t have enough audio and decoding will be marginal. There is no
“sweet spot” for audio level...it works on the RATIO of signal to noise in a
You also of course have to be correctly tuned within the auto tuning range.
If the V4 Signal (the entire signal...200 Hz wide) fits INSIDE the green tuning
lines the auto tune capability of the V4TNC should tune it in (to about 1 Hz
accuracy). The offset of the remote station is shown on the TNC form. You
can set the capture (tuning) range in the setup....default = +/- 100 Hz. Trying
to “zero” the offset with the dial isn’t necessary and won’t improve
If you are still having problems do this. Make sure all your levels and
tuning is set correctly as above. Turn on V4 debugging (Setup). Try
and listen to a remote station noting the time (UTC) of the test. Then send me
your V4 TNC Debug <date>.log and the time (UTC) of the test and what you
observed. That debug log tells me much more than you could describe in an
email! Send the log (as an attachment ) directly to rmuethingATcfl.rr.com
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