[Elecraft] K2 - DSP - Impressive

[johnny]

I share with Steve's observation.  KDSP2 is good in CW mode but not so good 
in SSB when compared with IC756pro3.  I eventually sold the KDSP2. 
Artifacts in SSB is the thing I don't like for KDSP2.

73

Johnny VR2XMC
----- Original Message ----- 
From: "David Wilburn" <dave.wilburn at verizon.net>
To: "Steve Kallal" <n6vl at yahoo.com>
Cc: "'Elecraft Discussion List'" <elecraft at mailman.qth.net>
Sent: Monday, October 22, 2007 8:10 AM
Subject: Re: [Elecraft] K2 - DSP - Impressive


>I do not argue that my settings my settings could likely use some tweaking. 
>My epiphany was concerning how the DSP cycled through the different 
>settings.  The other thing that helped me was cranking the gain up.  With 
>the gain set to higher settings, the higher beta is more tolerable.  I 
>actually end up pulling back on the AF settings at times.  But based on 
>your statement, I went over there and played a little bit, and ended up 
>with beta / decay settings in the 50 range, and depending on conditions, I 
>could see it going lower.  But I find if I cycle through the .nr1-4 
>settings, and the SF1-4, I often find a comfortable setting before I end up 
>fiddling with the beta / decay.
>
> David Wilburn
> dave.wilburn at verizon.net
> K4DGW
> K2 #5982
> FP#-1751
>
>
> Steve Kallal wrote:
>> David,
>>
>> Wow, the default Beta and Decay settings leave me with a lot of 
>> distortion.
>> I can tolerate more distortion on SSB than on CW. The denoiser makes CW
>> sound scratchy, but till copyable. I left the Beta setting close to the
>> default, but really reduced the Decay setting. I put it down to 30, 
>> though I
>> did have it down to 5 at one point.
>>
>> I guess I am used to DSP with less distortion. My 756PROII is able to 
>> reduce
>> the noise level without the degree of distortion present in the KDSP2. 
>> The
>> KDSP2 does get the job done. I starting to prefer the bandpass filtering
>> over the denoiser, and only use the denoiser if really needed. For 
>> example,
>> I use the narrowest filter setting of 50 Hz, for the CW bandpass filter.
>> I've found it can work better than the denoiser in most situations.
>>
>> 73,
>>
>> Steve N6VL
>> K2 #2289