Paul, I will agree with Lee. I think the best would be to use a small relay that would open the antenna on transmit and also short it to GND. Nothing touching the Pre-Amp. All Electronics have some very nice DIP relays that will do the job. I have no connection with All Electronics, Just a good supplier.
73 W0RI Paul you might want to be careful just shorting the receiver input. This would also put a short on the output of your preamp. This would have the preamp blasted with RF from your TX while trying to feed a short. My guess would be you could destroy preamps doing this. Lee K7TJR OR _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
