Re: Is my AFSK A problem a Ghost?

Posted by Richard Ferch on May 01, 2009; 10:38pm
URL: http://elecraft.85.s1.nabble.com/Is-my-AFSK-A-problem-a-Ghost-tp2748776p2756839.html

In my previous message I forgot to mention one other difference between AFSK
A and DATA A sub-modes. In AFSK A, the K3's dial displays the actual mark
frequency, whereas in DATA A the dial displays the suppressed carrier
frequency.

Thus, to tune in the W1AW RTTY bulletins on 14095 kHz, in AFSK A you would
simply set the K3's tuning dial to 14095. In DATA A, if you wanted to center
the signal on exactly 1500 Hz, you would set the radio's dial to 14093.415
kHz (1585 Hz below the desired mark frequency). I don't know for sure what
frequency DM-780/HRD would log in each of these two cases, nor how to
correct any offset if there is one.

73,
Rich VE3KI

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