[Elecraft] K-3 Ref Cal adjustment affected 400 hz 8 pole filter

[Jim Brown]

On Sun, 15 Aug 2010 10:45:53 -0400, kz5d at aol.com wrote:

> Is this expected behavior?

Yes, it appears to be within the normal tolerance of the filters. I have a 
total of three 400 Hz filters and three 250 Hz filters between two radios 
(one with a sub-RX). I've measured them all with a spectrum analyzer,  and 
all require some offset to center them in the K3 IF, typically 40-100 Hz. 

73, Jim K9YC