[Elecraft] KRX3 independance RX Main Ant1 Sub Ant2 possible?

[Frank DL2GRF]

Don,
thank you for explanation! If I have selected on 20m main receiver to ANT1
(Beam) and switch the sub-receiver on 80m I have the chance to switch
between AUX and ANT1. But not to ANT2 (80m Dipol). That´s not possible?
Another question: At AUX connector I have an active antenna dx-one from RF
systems. Transmitting during on air period is allowed from manufacturer. It
would be not destroyed. But strong receive level coming through the aux
input of K3. I think it is protected against own transmission. But if I
transmit with an other transceiver he get the full rx level to sub receiver
and could damage. What do you think?
73 Frank

Don Wilhelm-4 wrote:
> 
> Frank,
> 
> If the frequency on the main receiver is lower than that of the sub, you 
> may be greeted by a message that says USE AUX.
> 
> There is a Low Pass Filter associated with the main receiver (and 
> transmit signal).  If that low pass filter is also placed between the 
> sub-rx and the antenna, higher frequencies will be severely attenuated - 
> thus the message USE AUX.  The Auxiliary antenna input to the sub does 
> not have a low pass filter in the path.
> 
> 73,
> Don W3FPR
> 
> Frank DL2GRF wrote:
>> Hi,
>> using FW 3.03. KRX3 installed. Cable routed to Aux-Connecter not to KAT3.
>> Is
>> it possible to receive with main receiver on 80m at ANT2 e.g. and with
>> sub
>> receiver on 20m at ANT1. If I switch sub-receiver outside the band of
>> main,
>> it switches to aux connector. 
>> If I route the cable to KAT3 is it till then possible to use different
>> antennas?
>> 73 Frank DL2GRF
>>   
>>   
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