[Elecraft] K3 Antenna 1/2 Operation

[Vic K2VCO]

Craig D. Smith wrote:

> In my normal contest setup here I use two antennas on the same band.  One is
> resonant so I don't need the ATU.  The other is a multi-band doublet that I
> use the KAT3 to tune.  The beauty of this is that I can quickly switch from
> one to the other with the K3 front panel ANT switch to select the one with
> the stronger signal.  The problem is that the state of the ATU (bypass or
> engaged) has to be reset each time I switch antennas.

The ATU settings are per-antenna (and of course per-band). Just tune the 
ATU for each antenna and you will be fine.

Note that even when the ATU is set to BYPASS there are still some tuner 
components in the circuit, to compensate for stray reactance of the 
board traces, etc. BYPASS really means "matched for a 50 ohm resistive 
load".
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco