[Elecraft] P3 - KXV3 Gain Mod Question

Fred Jensen k6dgw at foothill.net
Mon Sep 12 18:17:20 EDT 2011


Had a nice QSO with Dwayne, KE5EFY this AM and got quite a bit of my new 
P3 set up.  It appears to me that everything is working as it should, I 
got S-units to appear on the ordinate [they mean more to me than dBm on 
HF], got a few Fn switches set, and he walked me through the PEAK/NOT 
PEAK toggle.

When I started building, I installed the KXV3 first, and had the K3 back 
on the air before I started the P3.  In the P3 stuff, there was an "IF 
Gain Mod," change one resistor on the K3 RF board.  I had already 
re-installed the countable infinity of chassis screws into the K3, and 
screwing around with an SMD the size of a grain of pepper didn't really 
"light my fire," so I put it aside.  Now, with everything working just 
fine, I'm wondering what that mod really does?  Do I need it?

Incidentally, while installing the KXV3, I needed to cut jumpers W1 and 
W2.  This is easier said than done.  They are right up against a board 
that I wasn't told to remove.  I did finally get them cut with the very 
end of a small pair of scissors.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org


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