Updated K2?

[George Averill]

    I just noticed that the K2 is adv. "Now with DSP".How good is the DSP?
George, K4EOR
Sent from my Verizon 4G LTE Smartphone


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[Don Wilhelm]

George,

The KDSP2 option has been available for the K2 for several years now.

It is audio DSP and offers quite good DSP filters as well as a denoiser
and a Real Time Clock. It is not "DSP" which includes modulation and
demodulation like in the K3(S) or the KX3.

If you find the K2 IF filters not adequate for your needs, you may wish
to consider the KDSP2.
It occupies the same space as the KAF2, so both cannot be in the same K2
at the same time.

You may download the KDSP2 manual to see more about it.

73,
Don W3FPR

On 4/27/2016 1:22 PM, [hidden email] wrote:
>      I just noticed that the K2 is adv. "Now with DSP".How good is the DSP?
>

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[Phil Wheeler-2]

I think it's good once you get it adjusted.
Adjusting it is a bit complex.

You might want to look at the KDSP2 manual
http://www.elecraft.com/manual/KDSP2_A1.pdf  How
to operate it starts on p. 23 or so.

Once it's set up, I'd not want to use my K2
without it.

73, Phil W7OX

On 4/27/16 10:22 AM, [hidden email] wrote:
>
>
>
>
>
>      I just noticed that the K2 is adv. "Now with DSP".How good is the DSP?
> George, K4EOR
> Sent from my Verizon 4G LTE Smartphone

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[Don Wilhelm]

Just a quick note on using the KDSP2 filtering --
For best overall operating (especially in crowded band conditions), it
is always better to use XFIL to narrow the IF filter first, then use
AFIL to add the KDSP2 filtering if necessary.

That keeps the level of strong adjacent signals to a minimum and
prevents overload of the AGC (and the resulting receiver de-sense).

I do see several operators who use only the DSP filtering, leaving the
preceding IF bandwidth 'wide open' - not the best way when the bands are
crowded.

73,
Don W3FPR

On 4/27/2016 2:23 PM, Phil Wheeler wrote:
> I think it's good once you get it adjusted. Adjusting it is a bit
> complex.
>
> You might want to look at the KDSP2 manual
> http://www.elecraft.com/manual/KDSP2_A1.pdf  How to operate it starts
> on p. 23 or so.
>
> Once it's set up, I'd not want to use my K2 without it.
>

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[alorona]

Something really nice about the K2's DSP is that all of the bandwidth, gain, and denoising parameters are adjustable. There is a wide range of filtering and denoising possible with very fine gradations. If you like to tweak, go for it. But, as Phil implies, if you lack the patience to get the parameters just right you'll be stuck with the defaults, which may or may not agree with your idea of just-right noise reduction.

Al W6LX



>I think it's good once you get it adjusted.
>Adjusting it is a bit complex.

>73, Phil W7OX
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[Bill Steffey NY9H]

i see that Expert is proposing to the FCC to eliminate the 15db gain...

SB QST ARL ARLB015
ARLB015 FCC Invites Comments on Petition to Eliminate 15 dB Gain
Limit on Amateur Amplifiers


Wondering how easy a mod ( and firmware) would enable our kx3s
and Elad Duos  to fully drive the KPA500????

bill ny9h/3  

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