[Elecraft] ultimate rejection

[John Huffman]

Merlin -

Like others, I would like to see pictures and any other information on this 
project.

I have found that I get distorted audio when transmitting SSB if the data cable 
between the K2 and KPA100 happens to fall near the KSB2.  I even get some RF on 
my CW signal.  I believe your solution would be much more effective than my 
efforts to shove the cable out of the way.

73 de NA8M
John

> Enough reminiscing;  I just spent about a hour with my KSB2, making  sure
> that the solder connections near the 7 pole filter were filed down, or 
> clipped
> as much as possible, so that they don't act as little "antennas",  thus 
> messing
> up the characteristics of the filter.  It worked!  The  "audio image" that
> one hears when tuning past zero beat got a lot weaker!
>
> Next, I went to local hobby shop and bought some tin.  I made little  tin
> "houses" which I placed around the matching toroids, ground them  carefully. 
> It
> worked too.  Next I added a little tin "fence" which  went on the bottom the
> board, shielding the input of the filter from the  output.  It worked.  Three
> times is a charm!
>
> 73,
>
> Merlin W3ICT