开云体育

Mark wrote:
> CLK2 is the only one used on xmit and then it should be the dial freq +- 800 Hz depending on sideband selection.

When transmitting, the display should show the frequency of the carrier in the case of CW,
and should show the frequency of the suppressed carrier in the case of SSB.
If your firmware does otherwise, that's a bug.
The only funny stuff is during receive of CW, the receiver must tune to one side of the
incoming carrier so you can hear a beat note between that signal and your BFO.

When transmitting SSB, all three clocks are used in double conversion,?
the process is the same as during receive except reversed.
All three clocks remain the same when switching from receive to SSB transmit.
When transmitting CW, clk0 and clk1 are shut down, the mixer at D1,D2 is unbalanced,
and clk2 is set to the operating frequency.

I'd recommend the?algorithm of post???/g/BITX20/message/54501?for calibration.
Tune the rig following the algorithm of post??/g/BITX20/message/44278
The funny offset for CW receive is not included in that tuning algorithm, an exercise for the reader.
I have no idea what the various firmware releases are doing these days
except that none of them seem to be doing it right.

Jerry, KE7ER