[Elecraft] MP3 Demo of the K3's Noise Blanker under some rather severe conditions

[Stephen Prior]

As someone who frequently has to live with high line noise levels up to S8/9
at times, that's particularly good news!  Thanks for posting it, a very
impressive demonstration.  My K3 hopefully won't be too many weeks now!

73 Stephen G4SJP


On 23/2/08 01:59, "Tom Hammond" <n0ss at embarqmail.com> wrote:

> Folks:
> 
> This afternoon my line noise was particularly bad, even giving VP6DX a run
> for its money on some bands.
> 
> Just for the heck of it, I punched [NB] on the K3 and... there was VP6DX,
> and... the noise was GONE!!!
> 
> This was some of stronger line noise I've had out here (in the sticks) for
> quite a while.
> 
> I was so impressed that I mad an MP3 of the differences without and with
> the NB enabled.  The MP3 file can be found at:
> 
>     http://www.n0ss.net/k3_nb_demo_22feb2008.mp3
> 
>     NOTE: If you choose to manually type this URL into your browser, be
>           aware that the blank spaces are filled with UNDERSCORE " _ "
>           characters and NOT blank spaces as might appear above.
> 
> If you can't access the file from this link, go to www.n0ss.net, select
> the K3-Specific web page (just being built, so there's virtually NOTHING
> on it other than this file) and click on the file.
> 
> The source bands for the recording were 15m and 17m, and among others,
> VP6DX was one of the 'sample' stations.
> 
> I used a fairly wide bandwidth in order to give a worst-case scenario for
> the KNB3. Most of the blanking was due to the IF blanker, with just a little
> DSP NB thrown in for good measure.
> 
> Nice work Wayne & Lyle!
> 
> 73,
> 
> Tom Hammond   N0SS
> 
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