[Elecraft] DSP...

[George, W5YR]

Dave, comparing your '570 with a real IF DSP radio like the Icom IC-756PRO2
is about as apt a comparison.

Believe me, tacking some weak audio DSP on the tail-end of a conventional
analog receiver is not the same thing as designing a completely different
architecture built around a core DSP transceiver that performs all signal
operations mathematically and uses analog circuitry only for up and down
conversion and amplification.

I fear that you have formed a rather erroneous concept of what real DSP
receivers are capable of doing on the basis of your experience with the
Kenwood. Please make an effort to operate an Icom 756PRO or PRO2 or the new
IC-746PRO (or IC-7400 in EU?) before condemning all DSP receivers.

And please keep in mind that a K2 is yet another totally different
architecture and implementation. It has some strengths compared to the PROs
and quite a few weaknesses, but it is a very good radio that occupies a
place on my operating desk right next to an original PRO, a PRO2 and an
IC-765.

They all "sound" different because they *are* different in many ways. There
are some times and instances in which one will be preferred over another,
but that does not mean that the others are inferior - just "different."

And the bottom line is that the PRO2 remains the best of the lot under all
conditions - other than tossing a rig into the bag and heading for the
field! There, the K2 shines in very bright lights.

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"
<mailto:w5yr@att.net>

----- Original Message -----
From: "Dave" <dave@astromag.co.uk>
To: <Elecraft@mailman.qth.net>
Sent: Friday, March 14, 2003 12:36 AM
Subject: Re: [Elecraft] DSP...


> Hi Gang
>
> If having DSP involves listening to a rig like my TS570 (DGE), then I'll
> stick with my K2 without DSP! My thoughts are that up conversion
> transceivers with wide roofing filters add DSP in a failed attempt to
clean
> up the artefacts, comparing my '570 and K2 only takes 5 minutes of 80m CW
on
> an evening... that's about the length of time it takes to become fatigued
by
> the audio on a TS570.
>
> Oh, I didn't mention current consumption....
>
> I'll stick with a plain vanilla K2 thanks.
>
> Dave, G4AON
> k2 #1892