[Elecraft] Why predistortion ?

Fred Jensen k6dgw at foothill.net
Tue Sep 15 19:39:33 EDT 2020


Didn't the term "pre-distortion" originate in the astronomy world where 
one creates an artificial star with a powerful laser, and then distorts 
the telescope mirror in real time to minimize atmospheric effects 
[twinkling]?  That also reduces the twinkle on real nearby stars too.  
Maybe that's something else.  Pre-emphasis/De-emphasis in FM broadcast 
[and analog land mobile FM] is sort of pre-distortion too.

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 9/15/2020 3:55 PM, Andy Durbin wrote:
> " Now I understand better what the discussion is all about."
>
> Who ever coined the term "predistortion" should be taken behind the bicycle shed and introduced to a 2x4.  The terminology is the epitome of obfuscation!
>
> Andy, k3wyc
>



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