[Elecraft] KRX3 antenna routing

[Chris G3SJJ]

Hmm, that would be nice but I suspect we will mostly be running on a 
lower band and searching for QSOs on a higher band. Eg, running 20m, 
searching 10/15, running 40 searching 20, running 80 searching 40/20. If 
we had a decent opening on 15/10 it might work. Thanks for the thought Al.

Chris G3SJJ (GU4CHY/P - IARU Region 1 SSB Field Day 6/7 September)



Alan Bloom wrote:
> 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
>
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> 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
>>     
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