[Elecraft] KRX3 antenna routing

[Alan Bloom]

It should work fine as long as the receiver is on a lower band than the
transmitter because the ATU is low-pass in nature.

Al N1AL


On Thu, 2008-08-07 at 09:59, Chris G3SJJ wrote:
> Whilst I am waiting for shipping notification of my KRX3, I have a 
> question on routing.
> 
> I have a specific contest application coming up where we will be using 
> SR2O. The idea is for the 2nd op to be monitoring a band other than the 
> Run band. We are only allowed one antenna and have designed it such that 
> the KAT3 will handle all the impedance presented on the various bands. I 
> had hoped that the K3/KAT3/KXV3/KR3X antenna routing would allow us to 
> connect the 2nd rx directly to the antenna
>  and not via the ATU. Studying the manual I can't see how that can be 
> done. Can anyone confirm this?
> 
> If not, I can make up a small relay box which takes a feed off the 
> antenna input to Ant 1 socket and feeds it to Aux RF on receive and 
> grounds Aux RF on transmit and I can switch it via the PA PTT switch on 
> my mHam Keyer. An internal switching solution would be more sophisticated!
> 
> Chris G3SJJ