[Elecraft] simplest way to protect subrx from high RF on RX antenna?

[Don Wilhelm]

Allan,

The K3 subRX is protected with a C.O.R. when connected to a separate 
antenna - so the protection is built in.
OTOH, if you want to silence the clicking of the C.O.R. (it *is* a relay 
clicking), then take other means to isolate the RX antenna from the TX 
antenna - filters or separation, or opposing polarization (whatever it 
takes).  Once you reduce the RF input to the K3 RX ant sufficiently, the 
C.O.R. will stop clicking. and the input level will be safe for the K3.
73,
Don W3FPR

Allan Taylor wrote:
> Having recently gotten the K3 going with the 2nd receiver, I would
> like to try listening and then
> TRANSMITTING with the 2nd rx using a separate antenna. Obviously, a
> relay to open the rx antenna
> feedline or shorting the input would do the job. Where would you
> locate these relays? Is controlling them
> via the KEY OUT (for the amp) sufficient? Other issues?
>
> I would really like to NOT blow out the front end of the 2nd rx...
>
>   
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