[Elecraft] K4 and Predistortion

[Phil Kane]

On 5/18/2019 9:42 AM, Bob McGraw K4TAX wrote:

> Tongue and cheek, .........from what I hear on the bands, pre-distortion
> starts with mostly that which comes out of the operators mouth. 
> Electronics won't improve this artifact.

For sure!  Same with current music.  No extra charge for the distorted
sound.

Reminds me of a case some 45 years ago involving broadcast signal
quality where I was testifying as the FCC's engineering expert.  Those
of us with engineering backgrounds knew that what I was referring to as
"pre-distortion" was the pre-emphasis / de-emphasis curves commonly used
in FM broadcast audio chains.  The non-engineer lawyers jumped up and
down "what, they are intentionally distorting the station's sound?"
Took a while to educate them from the witness box.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon