On Feb 6, 2005, at 6:57 PM, Jim Harris wrote:
Hopefully, I'm about two and a half weeks from
ordering a K2 with about four accessory kits. My
question today is how much difference is there in
performance between the KDSP2 and the KAF2? Is the
KDSP2 worth the extra $140? I'm been using an
IC-746pro for about a year and a half so I am familiar
with the use of a DSP.
I've had both in my K2. Here are my impressions.
I wasn't thrilled with the KAF2. The CW filters in the K2 are sharp
enough that I never needed to "supplement" it with an audio filter. I
also found that the narrow audio filter sounded a little bit too
"ringy" for my tastes.
I did, however, make use of the real-time clock in the KAF2 on
occassion. Setting it was a pain, though. I also appreciated how much
high-pitched audio hiss the standard low-pass filter of the KAF2
removed. It was worth the price just for this feature.
THe KDSP2, on the other hand, has been a boon for me. For SSB, it is
indispensable. I run the auto-notch all the time in SSB. I use the
filtering to help clean up the shape of the crystal filter. It also
helps to have a couple of narrower positions handy on SSB.
On SSB and CW, I haven't found the NR filter to be terribly useful,
although it sometimes helps. Biggest problem is that it makes it sound
like you are listening to the band through a long narrow tube.
I'd buy the KDSP2 again. The KAF2 would be OK if you are running
battery or solar powered and are concerned with power consumption.
Bill Coleman, AA4LR, PP-ASEL Mail: [EMAIL PROTECTED]
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901
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