Make sure the TX mark frequency in MMTTY is the same as what you've chosen in
the K3.
On 4/13/2016 7:11 AM, Mike Dodd wrote:
Thanks to all who replied off-list to my question about choosing a Mark
frequency. Now on to a new question....
Last night I was receiving RTTY using MMTTY and the AFSK-A mode on the K3s.
This morning I am trying to get the K3s to transmit, but not having much luck.
I'm using the internal USB sound card in the K3s. I have successfully
configured MMTTY to:
1. Receive and decode tones from the sound card.
2. Key the K3s when I click the TX button in MMTTY.
3. Send tones to the K3s when the TX button is clicked. I can hear the tones
in the K3s speaker and headphones. If I choose a different Mark frequency in
MMTTY, I hear the expected tones on the K3s.
Clearly audio tones are being sent to the K3s. But no RF comes out. I have PWR
set to 50W (into a dummy load), and when I hold TUNE, the RF bar graph shows
that power level (half scale, 5 bars).
But when I click TX in MMTTY, and hear the tones on the K3s, the RF bar graph
shows 0 (one bar).
What must I do to make the K3s transmit the audio it's receiving from MMTTY?
Thanks in advance.
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