[Elecraft] KX2 not remembering Mic gain setting on ADATA

[Gareth M5KVK]

It appears the problem is more deep-seated.

I’m away /P right now and decided to do some FT8 using a Raspberry Pi. I set up the Tx drive (seemingly) OK, by pressing Tune on WSJT-X and adjusting Tx level and Mic gain to get the right amount of ALC.
However, when I then try to Tx again, TX LED lights but there is no drive. A Very slight nudge of the MIC gain causes 5-bars on the display, but next time I Tx it’s back to no drive.

Has anybody else experienced this?

Gareth

From: Gareth M5KVK <gareth.m5kvk at gmail.com>
Date: Saturday, 10 July 2021 at 14:53
To: "elecraft at mailman.qth.net" <elecraft at mailman.qth.net>
Subject: Trouble using MH3 microphone with KX2

Hi all
I’ve typically been using my MH3 with a KX3 for /P operating from my campervan. This last week I’ve been doing some SOTA activations, so I’ve been using my KX2 instead.

I noticed a couple of issues when setting the Mic gain.

I followed the advised procedure and reduced PWR=0, TX CMP=0, squeezed the PTT and spoke normally into the MH3. I found that there was no indication at all on the ALC meter until at about MIC=65, ALC jumped to 6-7. Mic bias is on.

I also noticed on a few occasions that when operating, pressing PTT had no effect until I slightly increased the MIC gain.

The MH3 works fine on my KX3, so I’m assuming the MH3 is OK, but I can’t figure where the problem lies.

73

Gareth – M5KVK