[Elecraft] Question from a newbie

[Tom Hammond]

Hi Pete:

I'm always the 'late' one to reply it seems...

The KNB2 is a very good blanker... on CERTAIN noise types... but, as 
with virtually blankers, you DO have to have the right type of noise.

It's generally very good no line noise, sparkplug/elec. mixer/elec. 
fencer noises as well.

If you're interested, 
download  http://www.n0ss.net/knb2_demo.zip  from my web site and 
take a listen to my KNB2 in action. This was NOT a 'set-up' 
demonstration, I just happened to tune across a 20M signal one day 
when my line noise was pretty much out of sight, turned the KNB2 on, 
and the noise disappeared... figgered it was a good demo, so I 
recorded a bit of it.

I have to say as well that there WILL be times when the KNB2 will 
appear to do NOTHING, even though I feel it should be doing its job 
on some noise I'm hearing. Though I've not 'scoped out' the noise, 
it's apparent that it must have some characteristic that the KNB2 
doesn't like, or can't cope with, so the noise remains... but in 
general, the KNB2 works very well... FOR ME anyway!

73,

Tom Hammond    N0SS

At 07:44 PM 3/10/2007, you wrote:
>I have come into possession of a K2/100 with the DSP filter (KDSP2) but does
>not have the noise blanker (KNB2).
>Question: (1) Is the noise blanker a worthwhile purchase?
>Any thoughts would be appreciated.
>73, Pete-K8PT
>
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>B. Peter Treml                 k8pt at chartermi.net
>725 W. Magnetic St.       www.qrz.com/k8pt
>Marquette, Mi. 49855
>USA
>
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