[Elecraft] K3 S-meter on sub-Rx

Edward R. Cole kl7uw at acsalaska.net
Wed Mar 30 05:05:41 EDT 2011


I am installing a new 2m transverter to my K3 and ran into an issue 
with the s-meter on the K3.

The transverter has two Rx circuits so both the main and sub-Rx in 
the K3 are fed with converted 2m signal.  I was adjusting the IF gain 
in the transverter so that the noise level would read S2-S3 on the 
K3.  These are two separate gain pots one controlling the input to 
KVX3 Rx input and the other the aux input.

All that was going well, but I discovered that the s-meter only 
indicates signals from the main-Rx.  I have the sub-Rx input coming 
from the  aux antenna and not being fed from ANT1.  I can hear the 
change in noise level in the sub-Rx when I connect/disconnect to the 
aux antennas jack, but it is not showing up on the s-meter when the 
sub Rx is selected.  I discovered this after a lot of confusion, 
thinking I had a problem in the sub-Rx.

Is this normal (no s-meter reading from the sub-Rx?).  It is not 
really a big issue as I can adjust the level by looking at my two 
LP-Pan displays.  Just very surprised by the lack of s-meter function 
on the sub-Rx.  I wonder if this is an issue when running in 
transverter mode (CONFIG: XVN ON)?


73, Ed - KL7UW, WD2XSH/45
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