[Elecraft] KDSP2 - Now What Have I Done?

[Don Wilhelm]

  Ken,

Yes, the KSP2 menu entries are a litle bit clumsy, but if you follow the 
directions you can get it done.  I know you will hae to fumble your way 
through them 3 times before it seems OK.

Specifically, to get CF1 back to the LOPASS setting, Tap  DISPLAY to 
bring up the KDSP2 menu - the first letter of the displayed menu is the 
mode, and the number is the filter.  If not correct for the filter you 
wish to change, tap MODE or press AFIL until it is correct -- yeah, I 
know, you have to tap DISPLAY each time you want to check it, the DSP 
menu is not "sticky".

OK, so you have C1 nr nt on the display - hold the RCL button to move to 
the next menu.  You should see something like C.1 .60 .80 on the 
display.  Note the position of the blinking dot - that is the parameter 
that may be changed by tapping the BAND+ or BAND- buttons.  To move the 
blinking dot to the other parameter, hold the STORE button.

In the case of the CW display, the first number is the center frequency, 
and the second is the width.  To get the LPASS filter in CW, increase 
both the center frequency and the width to their respective maximums.

73,
Don W3FPR

On 1/3/2011 9:24 PM, Ken Alexander wrote:
> Fat, clumsy fingers; that's what I've got!
>
> I decided to start on one of my Christmas holiday projects tonight:  learning how to find my way around the KDSP2 in my K2.  All I have ever done was accept the default settings since I got it, but have always had the feeling that the denoiser was too aggressive for my taste.  I also wanted to see what settings could be tweaked, and once and for all, I wanted to find the darn clock! (I found it.  I'm glad I own a watch!)
>
> Anyway, to my fat clumsy fingers problem.
>
> I was messing...er, experimenting with the CW filter settings.  It was set to CF1 at the time.  I think I was moving through the menus.  The last thing I saw (I think) was LPASS.  Clumsy finger hits a button (I don't know which one) and now CF1 is impossibly narrow and has a brick wall cut off at about 500 Hz.  It doesn't roll off as you tune down in frequency (on 40m) the audio just stops!  CF2, CF3 and CF4 are not affected.
>
> Long story short:  I messed something up and I don't know what I did.  And I find the instructions that come with the KDSP2 impossible to understand.  Any assistance would be very gratefully accepted.
>
> Thanks and 73,
>
> Ken Alexander
> VE3HLS
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