[Elecraft] k3 matching filters

[Eric Swartz - WA6HHQ, Elecraft]

As noted on our orde form, our matched offset filter spec is to within 40 Hz or less, since our 5 pole crystals can vary in center frequency from batch to batch. 

Set the offset for the two filters identically to the nearest 10 Hz value half way between the two offset values. In your case,  set them both to -0.95. This results in a worse case center offset of 20 Hz, which is not detectable.  :-)

73,

Eric
_..._
-----Original Message-----
From: "aa1o" <aa1o.radio at comcast.net>
Date: Saturday, Dec 20, 2008 2:30 pm
Subject: [Elecraft] k3 matching filters
To: <elecraft at mailman.qth.net>

      
I received the KRX3 and the DVR today and am  about to upgrade my k3. I am using the 2.7 if roofing filter in the main unit  and requested and paid for a matching filter for the sub receiver.  
The main receiver offset is -.97 but the new 2.k  filter is marked -.93. 
My question is are these a match or did I get the  wrong part?  
I would like to know before I install things  because I would like not to have to redo the installation if the part is wrong.  
-Bill AA1O 
k3 287 
k2 1740