[Elecraft] K4 on AM

Bob McGraw K4TAX rmcgraw at blomand.net
Mon Mar 2 20:01:39 EST 2020


Why is it we are always prone to boost or add something?   Ever thought 
of taking away something?   With most EQ systems, attenuation excessive 
energy is much preferable to boosting anything.

So if ones audio is bassy or muddy, do we add high end or reduce low 
end?   Hint:  it is not adding high end.   Jim, K9YC, has written much 
on this topic.  If in doubt, always attenuate first.

If the glass is full of wine and one desires more wine, what's the 
choice?  Surely one can't add more wine or the glass will overflow.   
Then the solution is to take a drink of wine, thus reduce the amount of 
wine in the glass.  Same for boosting in audio.  The system has a point 
where it is full and will overflow.   It won't get better, but it will 
get worse.

73

Bob, K4TAX

On 3/2/2020 2:10 PM, Joe Subich, W4TV wrote:
> When a user cranks up the low frequency audio EQ on those
> rigs and then uses high level of audio processing the
> unfiltered (as in after the DSP/IF filter) PA chain 



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