Fabian
Also the idea of the relay is so that no wires carrying the signal need to come to the toggle switch (and potentially gather leakage from other functions) - but allow bypassing the relay when you are not doing CW.? Somewhere on the front or back you then need a toggle switch to provide the bias voltage for the relay - note both 12 and 5 volts are available inside the uBitx to serve these different types of relays.?
Curt WB8YYY
