Marv, not a bad idea to use separate antennas for Tx and Rx. Makes QSK CW possible and easy, but: 1) use a fast QSK TR switch on the receiving antenna to disconnect it and ground the receive input during Tx cycles; 2) separate the 2 antennas as far as possible; 3) use opposite polarities for the 2 antennas -- vertical for one, horizontal for the other -- Rich------ Original message------From: MarvDate: Thu, Jun 30, 2022 1:03 PMTo: [email protected];Cc: Subject:Re: [nanovna-users] How to measure induced coupling RF between two antennas #measurement #nanovna-h4Well my original goal was to determine if it was safe to use both antennas at the same time (one TX- one RX) on two different radios. I can see that would not be wise. Thanks for all the help. Can't learn anything without asking dumb questions!
