[Elecraft] K3 Noise Reduction

[Victor Rosenthal 4X6GP]

The problem of all signals distorted can be cleared up by adjustment. I 
don't know which blanker you are using (RF or DSP), but try reducing the 
blanker level until signals sound normal. Then strong noise pulses will 
still be supressed.
The RF blanker also has three choices of pulse width in addition to 
various levels, which can help with different types of noise. The DSP 
blanker can cause distortion when its level is adjusted to the higher 
levels.
The NR will not help with this kind of noise. It just reduces band noise 
in the background.

73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/
On 15/12/2021 16:36, Pete Smith N4ZR wrote:
> Last weekend during the 10 meter contest I was experiencing very loud 
> line-noise-like interference when my antenna was pointing south.  I 
> tried both my K3's Noise Reduction and Noise Blanker functions, and was 
> unable to find any setting that gave useful relief.  With the noise 
> blanker, in particular, I noticed that when it was on, not only was the 
> buzz still very strong, but it seemed as if all CW signals on the band 
> were being hum-modulated.  As soon as I turned off the noise blanker, 
> the CW signals cleaned up.  Is there something wrong with my radio, or 
> an adjustment issue, or is this interference simply too strong? 
> Obviously, I'll be trying to track it down, but it's not there all the 
> time, so that could be tough.
>