[Elecraft] XTAL filt mods

[Kevin Cozens]

Greetings.

At 01:21 PM 07/31/2003 -0400, Christopher L. Cowan wrote:
>I am performing mods on K2 #1897.  Redid BFO calibration and again noticed 
>that the wide filter response (CW and SSB) looks like a mountain 
>range.  Will either of the matched xtal mods make a difference?

If by mountain range you mean narrow width with high peaks, this doesn't 
sound right. Take out the KSB2 and add jumpers to let your K2 work without 
it. Check the filter response in CW mode. If it looks ok, the problem is in 
your KSB2 adapter. If the filter response doesn't look right in CW only 
configuration then some signal tracing or checking for bad joints, wrong 
parts placement, or problems with toroids would be in order.

The filter response might also not look right if you don't have enough band 
noise across to give you a proper graph. This is where a noise generator 
can come in handy.

>K2KSB2XTALS  K2 and KSB2
>
>Does the second set include the cw xtals as well?

Yes it does. The K2KSB2XTALS includes the crystals you need to replace 
those of the base CW K2 plus those on the KSB2.


Cheers!

Kevin.  (http://www.interlog.com/~kcozens/)

Owner of Elecraft K2 #2172        |"What are we going to do today, Borg?"
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