N2TK, Tony wrote:

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?

Very slight.


Is it a recommended mod?

No. However, there was very positive response to the AGC changes made in firmware a few months later (rev 4.51 at the time). We corrected two issues with the DSP code, leading to the following timely quote from G3TJP: "It sounds like you've scored a touchdown with this revised firmware...."

73,
Wayne
N6KR


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