[Elecraft] Elecraft DSP vs Audio Filter?

[Daniel Reynolds]

I'll chime in with my 2 cents...

I operate 99.9% CW. I bought the KAF2 before the KDSP2 was released. I
originally wanted the KAF2 for both the clock feature and the audio filter
feature (I had money then, and wanted as many features as I could get in my
K2/QRP). Now I seldom use either the clock or audio filter. If I use the audio
filter, I'll use it at the wider setting (AF1?) - the narrow setting I might
use for really rough conditions with wall-to-wall signals - but it generally
doesn't see much use. The clock - well ... let's just say that since I bought
my Casio G-Shock/Waveceptor/Tough Solar watch ... I get very accurate GMT/UTC
from my wrist now.

Would I buy the KAF2 now? Probably not - since the IF filtering does 99% of the
work. BUT - first filter setting does a very nice job of rolling off the 'hiss'
that you'll hear in a pair of stereo headphones ... so it does make it much
more comfortable for those that must operate for a long period of time. For
this reason - I'll be keeping the KAF2.

If I was interested primarily in SSB - I think I'd probably get the DSP for the
simple reason that it will handle noise reduction and filter out heterodynes
that always seem to be a factor in SSB reception.

73!
Daniel AA0NI