[Elecraft] K2 NB LEVEL question

[Don Wilhelm]

Stan,

The Noise Blanker is only effective on fast rise time noise pulses - 
like automotive ignition noise.  It will do nothing to reduce noises 
like atmospheric noise or powerline noise.

If you want to test it, remove the antenna, turn on the preamp and tap a 
screwdriver on Q22.  You will have to differentiate between the bursts 
of atmospheric noise  (the screwdriver is acting as a short antenna) and 
the "clicks".  The NB should kill the clicks, but will not change the 
atmospheric noise.

73,
Don W3FPR

On 7/2/2012 1:11 AM, AE7UTE at gmail.com wrote:
> Don thanks so much for the quick reply.
> The 4 different "modes" seem to be the same with NB1 or NB2.
> Also if I have the NB OFF.
>
> Thanks again.
> Stan AE7UT
>
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