I had something similar on my KAT-500 where I could not get to antenna
connection 3.

What I did was to do the update of the software and then open it to
manually turn on antenna 3 and it was fine.

I have the cable if you need to do that.

On Tue, Mar 21, 2023 at 11:45 JK Hooper via Elecraft <
[email protected]> wrote:

> Hi all,
>
> Despite my making what-I-think are appropriate changes in the KAT500
> utility (MacOS version), I am not able to switch antennas for 6 meters (50
> MHz).   KAT500 always stays on Antenna 3.
>
> My work-around solution has been to put my antenna w/ 50 MHz capability on
> Antenna 3.
>
> Any opinions on why my KAT500 is not responding to antenna changes, either
> from the front panel or from the KAT500 utility?
>
> I have restored factory defaults; no change.  I have restored from saved
> configuration file (which appears ok) and no change;  still on antenna 3.
>
> Configuration: K4D, KPA500, KAT500 with Elecraft interconnect cables.
>
> Thanks in advance,
>
> 73
> Hoop
> K9QJS
>
>
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-- 
73 de Ted Edwards, W3TB and GØPWW

and thinking about operating CW:
"Do today what others won't,
so you can do tomorrow what others can't."
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