[Elecraft] Question about KNB2 Noise Blanker (Gain reduction in NB2 posit...

[Stewart Baker]

On Thu, 30 Dec 2004 05:46:52 EST, G3VVT at aol.com wrote:
> Hi Ken,
>
> This effect of gain reduction when NB2 is selected does not happen on  my K2.
>
> A question is are you receiving large doses of noise that the  blanker is
> removing as the operation of a noise blankers is to cut out the  affected
> section?
> If the noise is severe enough this can result in distortion and  reduction of
> signal.
>
> You can check this by disconnecting the antenna and observing a signal from
> an RF generator under the same test.
>
> Took quite a time before I could even say my NB was even working. Only  works
> with the right kind of noise such as ignition interference. Shades of
> British Rail and their problems with the wrong kind of leaves on the railway
> lines!
>
> Regards,
> Bob, G3VVT
> K2 #4168
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Hi Ken,

No loss of signal when switching in my NB, but it is very selective
on what type of noise it blanks.

73
Stewart G3RXQ