[Elecraft] K3/100 RF Feedback/Spurious oscillations ?

[Stewart Baker]

Further to my previous mail, I have also noticed the same effect 
on 40m when I switch one of my Pennants in the direction of the 
main antenna. The SWR goes up and up until things become unstable. 
This is more serious than on 20m as I need the loops on 40.

Maybe I have to put in extra switching to disconnect the RX 
antenna pre-amp on transmit. That would be a pain if it has to use 
a relay.

Stewart G3RXQ