[Elecraft] I've injured my KAT-100

[Jim KO5V]

Hi Don,

By the way, the K2 S/N is 7225.

The radio room can get down to <10 deg C (40-50 deg F) during most of the winter, I only heat it when I use it. However, I was gone for most of January, so maybe the room was colder, and that's what happened.

At that room temperature range, I generally have to let the K2 warm up for 30-45 minutes before the frequency stabilizes - then it is very stable (per its specifications, I think).

Right now according to my IR thermometer gun, the heatsink temperature tracks with what shows in the "CAL tpa" menu. That's after a couple of ~10min QSOs.

Thank you for taking the time to answer.

73,
Jim  KO5V

-----Original Message-----
From: W3FPR <w3fpr111 at gmail.com>
Sent: May 25, 2023 2:37 PM
To: <ko5v at arrl.net>, elecraft list <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] I've injured my KAT-100

Jim,

At any time did you power on the K2 when the temperature was below 0 deg C?  That is one way to change the CAL TPA value.

73,
Don W3FPR

On 5/25/2023 3:03 PM, Jim KO5V wrote:
> This problem my be solved.
>
> I was reading some older posts from Don Wilhelm, and found a reference to setting the temperature in the "CAL tpa" menu. I know I set this function to room-temperature when I initially set up the radio. However, I found it was set to 102 degrees C!
>
> So, I reset it to 20C, and now it all works properly. I'm glad it was simple, but now I wonder why it changed. This is troubling...
>
>