[Elecraft] K2 SSB wider filter mod

[Ron D'Eau Claire]

The crystals used in the filters vary somewhat within the parameters set by
Elecraft. Indeed, I believe Elecraft tightened up the parameters somewhat a
number of years ago. The bottom line is that they do vary from filter to
filter. Checking with Spectrogram is an excellent idea. 

I found that my early KSB2 filter was barely 1.7 kHz wide! 

Ron AC7AC

-----Original Message-----

You might want to check yours first with spectrogram or other
program before assuming what the bandwidth is. Mine is
one of the field test models, and has a little more
than 2.4 KHz bandwidth.
                                         Leroy  AB7CE
                K2 Serial # 40