John Terrell's recording of the sbitx DE sending CW (message #106651) nicely shows the relay noise from the DE while sending CW (even though he is illustrating a different problem). Gordon Gibby showed me the fix for the relay noise back in his message #103870 and I applied that successfully in the V2 software. Evan Hand also talked about the source of the problem. With the V3 software it needs to be fixed again.
What I have done on the V3 software is make this change in sbitx.c
line 1319 change tr_switch_v2(1) to tr_switch(1)
line 1321 change tr_switch_v2(0) to tr_switch(0)
I suspect that the code that figures out what hardware you have and calls the correct tr_switch is OK, but this call to tr_switch_v2 was overlooked and not updated.
This change really improves my CW experience on the DE (won't change anything for anyonoe else though!) Please let me know if you think I am putting my hardware at risk.
--
Mike - kb2ml
