Hello Brian,

thanks for the suggestion. It's simple as I thought. I have the
intention to realise something like the vox circuit that si normally
used on the transverters.
The best I think is a separate unit with the possibility to switch from
rx and tx manually and automatically with the vox.

73 de Paolo Iw3arv

Greetings, Paolo. You can use an antenna switch. You need a switch with
three total connections. One for the receiver, one for the transmitter, and
one for the antenna. When you hear CW and are ready to transmit, switch from
the receiver to the transmitter.