[Elecraft] K3 noise reduction

[KM5Q]

But the strange thing is that just after 1.99 installation, it really  
improved. It had been fairly good (for SSB), then it got really good,  
with volume equalized between on/off. Since then, I have NOT updated  
firmware, but it deteriorated over a period of weeks to the point  
where it does practically nothing now except introduce more or less  
distortion (normal DSP distortion) according to the 1-4 etc. setting  
that I use.

I have not updated firmware since 1.99 but I will try that shortly. I  
wonder if anyone else has seen the NR performance deteriorate over  
time with NO change to the firmware. It's like adaptive in reverse.

Windy KM5Q