[Elecraft] DSP impressions

Sun Aug 10 12:28:00 2003

On Sun, 10 Aug 2003 08:25:27 -0700, Bob Tellefsen wrote:
>Andy
>I suggest you talk with Lyle, the KDSP2 designer.
>Something is wrong with your unit if the NR function
>makes signals unpleasant to listen to.
>Those of us who did the Field Test found the NR to be
>almost magic in some situations.  It really makes a
>great difference in a properly working unit.
>Good luck and 73
>Bob N6WG

Bob,

In your Field Tests did you find any difference in the NR 
characteristics between CW & SSB ?

I have spent some time adjusting the Denoiser Beta & Gain=
 settings 
and am still finding that the majority of SSB signals sound much=

better with the NR switched off even at high noise/low signal=
 levels.

73

Stewart G3RXQ
>
>-----Original Message-----
>From: [email protected]
>[mailto:[email protected]]On Behalf Of Andy=
 Bullington
>Sent: Sunday, August 10, 2003 8:05 AM
>To: [email protected]
>Subject: [Elecraft] DSP impressions
>
>
>After using the KDSP2 for a couple weeks (CW only) these are my
>impressions.
>I love the sound of the filters and the degree to which noise=
 is
>softened or
>eliminated. They are easy to use and easy to listen to. When=
 used in
>conjunction with the xtal filters, nearby QRM can be virtually
>eliminated.
>This is what I was hoping for when I bought the KDSP2 and I=
 haven't
>been
>dissapointed.
>For CW I don't personally like the NR function. The distortion=
 added
>to
>the incoming CW signal is more bothersome than the noise it
>eliminates,
>for me. I have tried all possible settings of the NR with CW but=

I've
>settled on OFF.
>The K2 has close to perfect QSK and the slight scratchy quality=
 from
>the
>DSP is at first annoying but it is really very slight and I've=
 grown
>used to
>it. I realize there is a mod for it but it doesn't bother me=
 enough
>to, at
>this point, take my new K2/100 apart and start messing around.
>I DO wish there was a 1 button ON/Bypass function for the DSP.=
 That
>would
>definitely be assigned to PF1 or PF2 if it were possible but it
>seems it is
>not. As it stands, its several button pushes to get to the=
 On/Bypass
>function.
>I still haven't gotten good at selecting the DSP filter I want.=
 I
>invariably
>tap instead of hold at some point and end up having to cycle=
 through
>all the
>xtal filters to get back to where I want to be.
>Bottom line is I like the KDSP2 very much and its a great=
 addition
>to a
>great radio.
>Andy W1AWB
>
>
>
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-- The Bakers' Home
-- [email protected] on 10/08/2003