RE: Trouble with RTTY
Posted by
Ed Muns, W0YK on
Oct 14, 2008; 5:11pm
URL: http://elecraft.85.s1.nabble.com/Trouble-with-RTTY-tp1333187p1333456.html
Make sure the K3 PITCH value matches the MMTTY MARK
value. The rest of your settings below seem OK. Sometimes, a
discrepancy will show up as the two tones offset from the two yellow lines in
the MMTTY FFT display.
73,
Ed - W0YK
I've been fooling
around with RTTY for a few days on my K3. It was working fine yesterday.
I even made a contact and was told I was loud and clear, but today I'm
having a problem on receive. The K3 is in DATA mode and set to FSK
D. It was in this mode yesterday. I have the DUAL PB turned
on. I'm able to tune in an S9+ RTTY signal easily and have it decode on
the K3 screen solidly. I have MMTTY (latest version) running on my
computer. When the K3 is in DATA mode (whether DUAL PB is on or
off) the audio from the radio to the computer is virtually nonexistent.
The audio from the K3 speaker is loud and clear. This is while the K3 is
decoding the RTTY perfectly on it's screen. I have CWT turned on and the
LCD segments are centered. FC says * 1.35 and is not movable. If I
switch the K3 to LSB, the audio to the computer is is now loud and decodes
perfectly in the MMTTY screen. LIN OUT is set to 15 and seems to be more
than enough for MMTTY. I touch nothing else but the MODE. This
didn't happen yesterday. Yesterday while in FSK D DATA mode, the audio
to the computer remained loud and clear. It's almost as if today the K3
isn't putting out audio when it is in FSK D MODE or that the filter is
somehow shifted.
Roger,
W1EM
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