[Elecraft] KXPA Switches Off

[Dave New, N8SBE]

John,

When I use my KXPA100 with my KX2, I normally leave the physical switch 
on the KXPA100 in the 'off' position, as using the cable from the KX2 
overrides it when the PA Mode is set to 'ON' in the KX2 menu.

In the past, when I've had an issue with the PA Mode turning off 
spontaneously, I found it due to either the cable not being plugged in 
properly, or something hung up in the KX2, which was solved by turning 
it off and back again.

Hope that helps,

73,

-- Dave, N8SBE, Hamshack Hotline 550-0971, HamsOverIP 101018, 
AmateurWire 1348

On 2025-01-24 20:43, John Overbaugh wrote:
> I have a KX3 and the KXPA100 with the KXPA to KX3 Connector Cable. I 
> have
> been radio "inactive" for several months and noted recently the 
> KXPA100's
> power switch was set to on. For quite some time, I kept hearing a 
> recurring
> tick and only realized a week ago that the KXPA100 was turning on and 
> off
> every so many seconds.
> 
> Fast forward to this evening and I'm setting back up because, like the
> procrastinator I am, I'm participating in Winter Field Day tomorrow 
> (from
> home, long story). I better get ready, right? I connected the KX3 and 
> the
> KXPA100, did all the things, powered on the KX3 and switched PA Mode to
> "On" and exited the menu. A few seconds later, it switched out of PA 
> mode.
> Back and forth I played that game 4-5 times and then stepped back...
> 
>    - The 2.5mm tipped cable was pinched in between a case and its 
> cover,
>    but doesn't appear to be broken.
>    - I checked the pinouts based on the Cady book and I have continuity 
> in
>    all lines
>    - I connected the KXPA100 via USB serial cable and launched the KXPA
>    utility. There are a number of fault codes, but none that appear 
> when this
>    switches off
>    - No fault code appears on the "Operate" tab either
>    - It just... switches off
> 
> Am I overlooking something obvious? It's been 100% reliable for me for 
> a
> good 5 years now, so I'm really unclear what could be happening.
> 
> Thanks in advance,
> John O.
> K7JTO
> Layton, UT
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