On 3/21/2020 8:07 AM, Jim Rhodes wrote:
The AFSK works
in DATA A, so it should work in AFSK A. Has to be an unintentional glitch.

That may depend on your RTTY software. By convention, MOST RTTY AFSK software (MMTTY, 2TONE, GRITTY) depends on the radio transmitting LSB, and that's how Elecraft radios do it -- the AFSK setting is LSB.

Virtually all other digital mode software uses USB, and DIGITAL A in Elecraft radios is USB. Both AFSK and DIGITAL A take computer-encoded audio from the LINE IN.

In AFSK-A mode, Baud rate and RTTY tone frequencies settings in the radio must match the frequencies sent by the computer.

Other settings that can prevent RTTY from working are audio drive level from the computer and VOX.

73, K9YC
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