[Elecraft] DSP usage

[Dale Boresz]

Vic Rosenthal wrote:

> Regarding the KDSP2 on CW: I'm wondering if anyone has
>
> 1) Found the nr2 - 4 positions useful.  It seems to me that the nr1 
> setting is always optimal.
>
> 2) Found a better adjustment for beta and decay than the default.  If 
> you have, could you explain how it helps, or what kind of signal it 
> helps with?
>
Vic,

I've found nr4 to be useful when the signal is either very weak, or very 
close to the noise floor. To my ears, nr4 seems to impart a more 
definite leading edge to the cw signal, at the expense of some rhaspy 
distortion of course, but I've frequently found it to make the 
difference between no copy, at least 'some' copy, if not solid copy. Of 
course, nr4 takes it's toll on volume, so I frequently have to turn it 
up just about all the way, but that's not a problem.

My denoiser settings for cw mode are as follows:
nr 89, 86
Cn G 2.5
CF G 2.5

These just happen to be my 'current' favorite settings; they've been all 
over the board as I experiment, and if you ask me in another week what 
they are, they're likely to be different.  :-)

But, it's exactly this adjustability that sets this DSP apart from the 
others, in my opinion.

Have  fun experimenting!

-Dale / wa8sra