[Elecraft] KAF2 or KDSP2 for K2?

[Arie Kleingeld PA3A]

  My K2 had the DSP.

I programmed the DSP in a way that it tracked the IF filter settings. I 
had that both in CW (4 settings) and SSB.
This way the DSP worked great as a combo with the IF filtering. More or 
less as in the K3.

The DSP auto notch worked reasonable well.
Never got the NR configured in a way that it could increase my copy so 
never used that.

Good luck.

73
Arie PA3A