[Elecraft] Question about KNB2 Noise Blanker (Gain reductioninNB2 posit...

[W3FPR - Don Wilhelm]

Bryce,

Certainly, when the noise pulse is not strong enough to reach the gating 
threshold, no blanking will occur.
The solution is to add a preamplifier.  In some cases it will be sufficient 
to just turn on the preamplifier in the K2, it does depend on the Rx antenna 
output level.

Any gated noise blanker will have similar behavior, it is not unique to the 
K2 implementation.

73,
Don W3FPR

----- Original Message ----- 

> Amen! The K2 NB is particularly poor when using low level rx only ants as
> noise pulses are heard in audio, but are not adequate strength to trigger
> the blanking mv.
>  Aloha,
>            Bryce, kh6at