[Elecraft] How does K2 NB work?

Fred (FL) ncsailors at yahoo.com
Sat Aug 26 08:22:55 EDT 2006


Hi -

Thinking of building my 2nd K2.  I wondered what
the consensus is on HOW WELL DOES THE NB WORK? 
in a K2?

In my spring #5422 K2 - I never could see much
improvement in "noise" elimination.  I had 
experienced a situation where we had major
trucks near our house (cement job) - and the
ignition or engine electrical noise was major.
The NB, in either setting - semmed to do nothing
noticeable to remove this type of noise.

The repetitive "popcorn" hissing noise - sort
of regular brownian white noise one hears on
40 and 20 - wasn't improved on either.

I even built a 2nd NB kit from Elecraft -
that didn't improve the noise operation
either.  The K2 itself appeared 100% in
spec, filters all aligned with Spectrogram,
and the rig passed every construction test
and specification with flying colors. And
it had 100% toroid guy toroids throughout.

Maybe these are 2 cases of the type of noise
that the NB doesn't deal with - what noise 
does it eliminate?   I know on previous Icom
and Kenwood rigs - NB did remove or at least
diminish noises of these types?  Is DSP the
better way to go?

Thanks,
Fred
N3CSY



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