[Elecraft] KDSP2 - Now What Have I Done?

[Ken Alexander]

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