I have never found the noise reduction on my K3 to be much use. This
latest issue where, depending on your AGC settings, the audio level
either increases or decreases, is just plain annoying. The noise
reduction may have always been like that, as I rarely use mine.
In addition, using one of the later "3.x" firmware releases while
listening to CW under high levels of thunderstorm static I just couldn't
get the AGC to work as well as it does on my K2. I tried just about
every AGC adjustment in the configuration menu and in the end gave up
and used the K2.
Using my Perseus SDR as an A/B comparison, the noise reduction in the K3
at best produces hollow sounding audio on SSB which sometimes helps
marginally on CW, but overall it's poor. The Perseus noise reduction is
very smooth and even at it's highest setting doesn't sound hollow. I
feel the K3 NR is too aggressive - even when set to it's minimum "1-1"
setting.
Hopefully it will be sorted soon, but the combination of AGC and NR
issues are just taking the edge off the K3 at the moment.
73 Dave, G4AON
K3/100 #80, f/w 3.11
----------------------
I have to agree with Hank's comment below. There were a few comments
back then also agreeing. At some point I was told by Wayne or Lyle
that it was on the list to be improved. Yes, perhaps changing AGC or
something else made it worse -- ? --
As it is, I use it only on fairly weak SSB signals where it may help
without much distortion. I DO use it on CW sometimes. I find that it
can help there the most. My mileage varies!
KM5Q Windy
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