[Elecraft] K3S-to-Computer Communication Failure

[radiodaveaz at earthlink.net]

FYI,

When I get too much RF feedback in the shack due to a mistake on my part, it affects the K3 utility. I use it to adjust my RF power in the K3 as my power knob needs replacing. The utility locks up, cannot be closed and requires a computer reboot to restore it. ( I tried Task Manager to no avail.)

I still love my K3.

73, Dave K7DRT


-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Curt Nixon via Elecraft
Sent: Friday, February 13, 2026 2:13 PM
To: wb0m at flashdog.us
Cc: Elecraft Discussion List <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K3S-to-Computer Communication Failure

I find that is is happy as long as the k3 is on before launching the comm program

Ku8l

On Fri, Feb 13, 2026, 12:17 PM Jeff WB0M via Elecraft < elecraft at mailman.qth.net> wrote:

> Hello All,
>
> A couple of times ny K3S has quit communicating with my MacBook Pro 
> and macMini. For some reason, it no longer  “talked” with any digital 
> logs or digital programs.
>
> When I launched the K3 Utility, it would not see the K3S - or more 
> precisely, the port used by the K3S.
>
>  I replaced drivers in the computers, unplugged and replugged cables, 
> added a new USB to computer cable  (thank you Elecraft) and still 
> nothing
> worked:  Until it did.
>
> The last time I got it to work I also turned on the P3. I was about to 
> order a RS-232 to USB cable, but the K3S and the K3 Utility started 
> communicating.
>
> Once K3S started communicating, I reloaded all the K3S software and 
> and have also added chokes/toroids to my computer cables. I do know 
> there is/was a bit of RF floating around the shack.
> I’ve also checked and re-tightened any grounds wire.
>
> Has this happened to anyone else or does anyone have any other 
> suggestions to keep this from happening again?
>
>
> Tnx es 73,
> Jeff/wb0m
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net Please help support this email 
> list: http://www.qsl.net/donate.html Message delivered to 
> radio.ku8l at gmail.com
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiodaveaz at earthlink.net