[Elecraft] RX antenna protection

[Ignacy]

If a receive antenna has a preamp, there no need to do any antenna guard
since the preamp cannot destroy K3. 

I used K9AY, K7TJR 3 el array, and a Wellbrook loop close to transmit
antennas. None was turned off during transmit.  Both have preamps and
nothing was damaged despite running a  KW. Of all 3, K7TJR was the best by
far. 

BTW, the RX ANT input in K3 is protected by a RF activated relay.  

Ignacy, NO9E



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