[Elecraft] K3 - RF Board - C238 - AGC change

[Wayne Burdick]

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