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

[Don Wilhelm]

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
>   
>