[Elecraft] KDSP2 - artifact

[Harvey Howell]

Johnny,

Here are the KDSP2 settings I am using. I'm sure they are not optimum but I 
am happy with the performance I get. There is quite a bit of QRM here on 80m 
SSB and the KDSP2 suppresses most of it so the voice is readable.

nr  94  10
nt  40  07
Sn  G  5.0
SF  G  7.0

I don't have 80m transmit capability but I like to listen sometimes to the 
Canadian traffic nets. I use a little indoor vertical from MFJ and they are 
very strong signals here in northern Washington. I usually have the KDSP2 
agressiveness set at nr2 or nr3 and the voice is usually intelligible. 
Sometimes the QRM is very low and I don't turn on the DSP. I suspect there 
are no really perfect settings since each signal being received has its own 
characteristics.

73, Harvey KN6VP K2 s/n 5022,5404

----- Original Message ----- 
From: "Stewart Baker" <stewart at baker.nildram.co.uk>
To: <w3fpr at arrl.net>; "Siu Johnny" <jcpsiu at hotmail.com>
Cc: <elecraft at mailman.qth.net>
Sent: Tuesday, October 31, 2006 4:30 AM
Subject: RE: [Elecraft] KDSP2 - artifact


Johnny,

I suggest that you search the archive for threads on this subject.
The KDSP2 seems to suffer from more aggressive artifacts on SSB than other 
DSP
filters such as the BHI.
Some people say they have cracked it, others (like me) have given up....

73
Stewart G3RXQ

On Tue, 31 Oct 2006 07:07:38 -0500, Don Wilhelm wrote:
> Johnny,
>
> I can't give you a good answer because I don't use the KDSP2 myself.
> Perhaps someone else can give you some pointers.
>
> 73,
> Don W3FPR
>
>> -----Original Message-----
>>
>> Thanks for your advice in the past.  I used K2 in the CQ WW SSb contest.
>> When I engaged the KDSP2, I found that there was too much artifact under
>> SSB mode.  I would be grateful if you could advise how I can adjust the
>> parameters to lessen the artifact.  I notice there are two
>> parameter namely
>> Beta and Decay time.  Which one should I adjust?
>>
>> Thanks a million,
>>
>>
>> Johnny Siu VR2XMC
>>
>
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