[Elecraft] KX3 SWR issue

[Hank]

What voltage is supplying the radio?  There was a bug for the ATU centered around falling supply voltage and this may have something to do with that - even though you do not have a tuner.


The factory had to change a resistor value to correct along with some firmware.  

 
----- Original Message -----
From: Len (lenecee at ca.rr.com)
Date: 07/23/19 01:27
To: elecraft at mailman.qth.net
Subject: [Elecraft] KX3 SWR issue

Curious if anyone on the reflector has experienced false SWR readings on their KX3?  No antenna tuner is installed.  Radio tested on a dependable dummy load and SWR/Power meter.  On transmit at 5.8 W or less, the radio displays "full-scale" SWR reading (> 1.4-1) with power output consistent with radio power setting.  At 6w and above, display jumps down to 0 SWR and 0 RF output even though the radio is still able to transmit.
Receiver functions perfectly.

I have initiated an EENT, and re-loded latest software from Elecraft site. I loaded the original factory configuration provided to me by Elecraft.  If anyone has any further suggestions that I might consider before I send the unit back to Elecraft for evaluation, I would be very grateful.  Tnx and 73
Len, K6LEN
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