K3/100 RF Feedback/Spurious oscillations ?

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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
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