I did the mod shortly after it was described here. The change in AGC behavior
was not subtle. Yes it improved copy in pileups when I was the DX. I found it
a bit difficult to cope with, though, because the changes in audio strength
amongst the stations was more than my ears have an appetite for. I had some
trouble putting up with the loud signals challenging my ears by the time I had
the volume up enough to discern the weak ones. I believe subsequent firmware
changes have obviated the need for this mod. I plan on removing the extra cap.
YMMV. This is only my experience and my observations.
73,
Andy
_ _
Message: 11
Date: Mon, 04 Feb 2013 16:37:20 -0500
From: "N2TK, Tony"<tony....@verizon.net>
To: "'elecraft'"<elecraft@mailman.qth.net>
Subject: [Elecraft] K3 - RF Board - C238 - AGC change
Message-ID:<001801ce031f$d0937fc0$71ba7f40$@verizon.net>
Content-Type: text/plain; charset="US-ASCII"
A year or so ago there was discussion about adding additional caps to C238
to reduce IMD. I believe it was two 1-uf caps.
What was the outcome of that? Did it make a noticeable difference in pileups
or for weak signal detection?
Is it a recommended mod?
73,
N2TK, Tony
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