[Elecraft] KAF2 or KDSP2 for K2?

[Guy Olinger K2AV]

Have to vote for Don's article on his web page.  Did it that way and got
the splendid results right off, first time.  Huge help.  Many thanks, Don.

Oh and probably that is why I saw such a difference adding the DSP.  Got
maximum results to start with.  I wasn't comparing the K2 after DSP to the
K2 before.  I was evaluating the K2 in contest conditions and comparing
results with other rigs.  If one is going to do CW contesting then you do
need the DSP and the good procedure for adjustment.

73, Guy.

On Tue, May 1, 2012 at 9:46 PM, Don Wilhelm <w3fpr at embarqmail.com> wrote:

> John,
>
> The IF filter response of the K2 filter can be quite good by itself, but
> cascaded filters are better, particularly the DSP straight sided filter
> responses.  To optimize the IF filters, I would encourage all to use
> Spectrogram (or something equal) and a wideand noise generator ( or
> atmospheric band noise on a dead band) to determine the actual width and
> positioning of each filter.  See part 3 of the K2 Dial Calibration
> article on my website www;.w3fpr.com for more information.
>
> I would like to point out that most K2 filters are not set for optimum
> response - the settings in the manual will produce working filters, but
> certainly not optimum.  I have described the process for achieving not
> only good dial calibration, but also good filter response in the K2 Dial
> Calibration article on my website www.w3fpr.com.
>
> 73,
> Don W3FPR
>
> On 5/1/2012 7:46 PM, John wrote:
> > One question I have about the choice between the KAF2 and KDSP2 is what
> > about having neither.
> >
> > How would one describe the receiver/filter capabilities of the bare K2?
> >
> >
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