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
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