Re: [wsjtgroup] Loading a WAV file into WSJT V9.02
- Hi Pete,
I think the mystery is solved. Your test file decodes in WSJT9 if and
only if you have checked "Quick decode" on the Decode ==> JT65 sub-menu.
Although JT65A has become popular on HF, the JT65 modes were designed
for EME, where there is a 2.5 s propagation delay. In normal operation
decoding starts at about t=52 s into the Rx minute, and the decoder
looks for proper synchronization from about DT = -1 s to +5 s.
The "Quick decode" option was added with terrestrial use in mind. With
that option checked, decoding starte at t=48 s and the searched DT range
is shifted a bit earlier.
Your test file probably has the signal starting at t=0, right? Anywway,
the decoder finds it at t=-1.2 s, just outside the acceptable range
*unless* "Quick decode" is checked.
-- 73, Joe, K1JT
- : I've uploaded one of my files (it's 1MB). It encodes the message "G3LTF
Sounds like an old radiosonde.