[Elecraft] KX3 Noise Reduction Performance

[Ed Ketterer]

All,

Posted this a couple of weeks ago. Still looking for some thoughts on it...

The effect of the NR (DSP) feature on my KX3 appears to vary with the band I
am on. On 80m and 40m, NR significantly reduces noise when the preamp is
off, but has little effect when the preamp is on. On 30m and 20m, there
might be a bit more noise reduction provided when the preamp is on, but
again, the effect is much more dramatic when it's off. On 17m and above, I
get very effective noise reduction regardless of whether the preamp is on or
off. It would be nice if the NR feature provided similar noise reduction
across all bands regardless of whether the preamp is on or off, and for me I
would certainly like to see significant noise reduction on 40 and 20 with
the preamp on. I have made no changes to the locked NR setting in the menu,
and am running the latest firmware. Has anyone else experienced this? Any
ideas on how to make the performance more consistent across bands?

Ed, K8SZN