[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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