[Elecraft] K3 RX audio on voice modes <oh no here we go again

[wayne burdick]

You're right, Paul -- I skimmed right past the "pink" idea (oops) and  
interpreted the poster's concern as a more common one that customers  
have brought up, namely that they can hear higher-order products (above  
the nominal communications passband).

Sloping the response is a very simple thing to do, and we've added that  
to the list. But we're also pursuing the high-order product issue.

Interesting discussion!

73,
Wayne
N6KR

On Apr 25, 2009, at 12:47 AM, pd0psb wrote:

>
> Wayne, I'm sorry to disagree.
> White noise will remain white within a restricted bandwidth.
> The better/steeper the filters (and the K3 has those) the more the  
> noise
> character will remain "white" within the chosen bandwidth.
> 73'
> Paul
> PD0PSB
>
> Band noise is filtered three times before it gets to the AF amp: at the
> crystal filter, the DSP I.F. filter, and the DSP A.F. filter. It is
> most definitely "pink" by the time you hear it.
> 73,
> Wayne
> N6KR
>
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