Bob-
Make sure you have the latest firmware. Up until the recent release there were problems with the Line In. One problem was that although you had Line In selected, it really wasn't selected unless you went in to the menu and selected another input and the re-selected Line In. I would try that to see if that is the problem. I had that problem when using basic LSB or USB modes with Line In.

At 12/24/2007 01:53 PM, N4BP wrote:

I'm unable to transmit an AFSK signal in DATA mode, although I can transmit
RTTY in LSB mode.  The line output from my computer soundcard does have the
audio signal on it and is connected to the Line In mono jack on the K3.  For
MIC SEL in configuration, I have Line In selected.  DATA MD is set to AFSK A
and shows 45 bps.  PITCH is set to 2125-170.  Using MMTTY software barefoot
which works properly with my FT-1000MP  (same cable, but new phone plug
connectors to mate with K3).  K3 goes into transmit mode and audio signal is
present on cable feeding K3's Line In, but no modulation.  What am I
missing??

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