Dr. James C. Garland wrote:
In using my K3 for diversity reception, I use my G5RV antenna on the
AUX subreceiver input, and my SteppIR for the main
(transmitting/receiving) antenna. When I’m transmitting, does the K3
short the input to the subreceiver AUX input, or otherwise protect the
input from damage? I’m using an amplifier, and the G5RV probably has
many volts of RF induced on it when I’m transmitting, and I don’t want
to damage anything. Sorry if this has been covered before or, worse,
if the answer is in the manual.
Hi Jim,
The KRX3's AUX input is protected by a gas-discharge tube, bleeder
resistor, and carrier-operated relay. It is very unlikely to be
damaged. However, activation of the COR (which you would hear as you
key the rig, etc.) can be disruptive to T-R sequencing. If you hear the
COR relay go on, I'd strongly suggest that you either reduce the
coupling between the two antennas or provide external switching or
shorting (this could be done via the KEY OUT jack on the K3).
73,
Wayne
N6KR
---
http://www.elecraft.com
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