Smith N4ZR
Sent: Wednesday, November 29, 2023 20:35
To: Elecraft List
Subject: Re: [Elecraft] K3 - Erratic receive
Hi Bill - I'm pretty sure my radio is late enough so that it has the upgraded
pins that were introduced to deal with that problem, but thanks for responding.
73, Pete N4ZR
On 11/29
+1 for what Brian, K0DTJ suggested!
The front panel buttons use a similar
voltage divider with a multiplexed
A/D converter to determine which button
has been depressed.
73,
Mike, K8CN
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According to the schematics, those two double pots on the front panel are
merely voltage dividers. They provide 0 to 5v signals to the front panel MCU
which controls the function, eg: AF_GAIN. It’s possible the pot has developed a
dropout right at the point where you usually set the AF level.
You're most welcome!
Bill
K9YEQ
From: elecraft-boun...@mailman.qth.net on
behalf of Pete Smith N4ZR
Sent: Wednesday, November 29, 2023 1:34:40 PM
To: Elecraft List
Subject: Re: [Elecraft] K3 - Erratic receive
Hi Bill - I'm pretty sure my radio is late enough
.
Bill
K9YEQ
*From:* elecraft-boun...@mailman.qth.net
on behalf of Pete Smith N4ZR
*Sent:* Wednesday, November 29, 2023 1:11:14 PM
*To:* Elecraft List
*Subject:* [Elecraft] K3 - Erratic receive
My 2400-serial number K3 has
Pete, have the front panel pins corroded? There is an upgrade available.
Bill
K9YEQ
From: elecraft-boun...@mailman.qth.net on
behalf of Pete Smith N4ZR
Sent: Wednesday, November 29, 2023 1:11:14 PM
To: Elecraft List
Subject: [Elecraft] K3 - Erratic receive
My 2400-serial number K3 has begun to have a sporadic receive problem,
which has gotten much worse recently. It's really weird.
What happens is this - the receiver sporadically loses most of its audio
output level, until I move the AF pot a couple of degrees either way, at
which point it
Good morning,
I deleted your response to my question earlier this month. So here I go
again...
I had send an email earlier this month explaining my audio problem on my K3
#5278. Here's a copy of my message:
Yesterday, my K3 suddenly decided to have erratic receive audio. If I have the
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