DSP REV C and D

[Rich-4]

Would I be correct that the difference between DSP C and D is that C is
lacking the LPF rolloff at 4 Khz?

Assuming I am correct should I expect better rx audio quality with D?

Rich
K3RWN
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[Grant Youngman]

Not necessarily.  I have a “C” board in my K3, but I also have the LPF installed.  If you are the original owner of the radio, then I suppose you’d know if you installed the LPF board or not.  If you bought the radio 2nd hand, then you’ll need to see if the LPF board was or was not installed by the previous owner.

Grant NQ5T

> On Sep 8, 2015, at 12:33 PM, Rich <[hidden email]> wrote:
>
> Would I be correct that the difference between DSP C and D is that C is lacking the LPF rolloff at 4 Khz?
>
> Assuming I am correct should I expect better rx audio quality with D?
>
> Rich
> K3RWN
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Please help support this email list: http://www.qsl.net/donate.html
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[Don Wilhelm-4]

Rich,

It all depends on how you define "audio quality".
To the SWL who wants to hear the maximum audio spectrum possible, then
the LPF may not be desirable.
But for the ham whose ears get tired of listening to the hiss of higher
audio frequencies after operating for a substantial time, the LPF is
desirable.

73,
Don W3FPR

On 9/8/2015 1:33 PM, Rich wrote:
> Would I be correct that the difference between DSP C and D is that C
> is lacking the LPF rolloff at 4 Khz?
>
> Assuming I am correct should I expect better rx audio quality with D?
>

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