[Elecraft] K3 - KRX3 audio cuts out.

[Bill Coleman]

> On Feb 25, 2018, at 10:35 PM, Bill Coleman <aa4lr at arrl.net> wrote:
> 
> I’ve been experiencing an issue with my K3, and I’m wondering how to troubleshoot it. 
> 
> Here’s the symptom.
> 
> Often, when I’m trying to work a weak DX station, I’ll switch the sub receiver off and on, so I can better hear the DX station, then to try and hunt for the station he’s working. 
> 
> Lately, after switching a few times, the sub receiver audio will go dead. Changing the sub receiver volume makes no difference, it’s just not there. Once it does this, switching the sub receiver off and on does nothing. The audio does not come back until I power off the K3 and power it back on. 
> 
> Any one else experience this?

An update with more information.

I was chasing 3D2EU on 80m this morning and ran into this problem — sub receiver turned on, but the right headphone went dead. I was trying to hook up the Line Out to see if I was getting audio there, when I went ahead and pressed the memory 4 button to send my call again.

Lo and behold, the sub-receiver came alive again in the right headphone again when the rig stopped transmitting. 

If anyone has insight into this intermittent problem, I’d appreciate it. Apparently transmitting “fixes” it. I’m also going to see if the line out has audio when the sub receiver is active, but the headset is not.

(3D2EU got really strong just after sunrise, but I didn’t manage to work him on 80m. Next time.)


Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901