[K3] [Elecraft] Initial Settings
David Woolley (E.L)
forums at david-woolley.me.uk
Sun Nov 23 05:52:20 EST 2008
O. Johns wrote:
>
> Ah, my god, are you lucky if you don't need NB. I live in the center of
> San Francisco, CA, and every tom dick and harry and every restaurant
> pizza oven and every cell phone tower (one block away) and every
> neighbor's numerous wall warts are spewing out RFI. S-meter readings
In general, those sources require noise reduction, not noise blanking.
The K3 has both, but note that noise reduction is a difficult problem,
and there are severe limits on what can ever be achieved.
> mean nothing. It is S units (if any) above the man-made noise that
> matter. When I finish my current project, a balanced antenna tuner,
> then I will assemble my new K3 and we'll start on the NB and NR and AGC
> and AFX merry-go-round. The K2 noise reduction is almost useless
> against all this stuff, so I hope the K3 does better.
Unless you have one of the audio filters, you do not have noise
reduction, on the K2, only noise blanking.
--
David Woolley
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