[Elecraft] K2 DSP?

[Bill Coleman]

On Jun 23, 2010, at 1:40 PM, W5CEM wrote:

> 
> Getting closer to ordering a K2...the www page says NOW WITH DSP?  Do I order
> the DSP board or not?  Inquiring minds want to know...

When I originally built my K2 in 2001, I purchased the KAF2. I never much liked it. The filters were too ringy for my tastes. About the only thing I used was the basic low-pass filter. 

I bought the KDSP2 when it came out, and find it eminently useful. On SSB, I have the automatic notch filter on all the time. I also have a progression of audio filters that enhance the usefulness of the OP1 filter. I find that the audio filters really clean up the pattern of the crystal filter on SSB.

For RTTY and CW, I also use the audio filters to clean up the crystal filters, but the crystal filters are much more useful.

I don't have much use for the Noise Reduction modes. Generally signals that are weak enough for me to want it are too weak for it to be effective.

I find the KDSP2 to be invaluable on SSB, and useful on RTTY and CW. I would recommend the KDSP2 for any K2 owner.

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901