[Elecraft] [Was] Amp power per $$ spreadsheet download [Now] CW
Michael Zolno
luv.myipad3 at me.com
Mon Apr 27 19:42:46 EDT 2015
Jim,
Can you point to a math based reference for this. I am curious (really). Any other non math based is appreciated as well if not immediately available.
All my best,
Mike WH6YH
Sent from my iPad
>> On Apr 27, 2015, at 7:51 AM, elecraft-request at mailman.qth.net wrote:
>>
>> On Sun,4/26/2015 10:33 PM, Vic Rosenthal wrote:
>> Sharpening the envelope is harmonic distortion, not IMD. I think.
>
> Nope. It's a bunch of square waves, and any square wave is composed of
> an infinite series of harmonics. Those frequencies are present in the
> drive signal (from small signal circuits to power amp circuits, whether
> in the rig or in a power amp), and if either is non-linear, distortion
> is produced.
>
> It's important to realize that ANY non-linear element produces both IMD
> and harmonics -- indeed, in-band IMD is the result of the mixing of
> harmonics in a non-linear circuit. Quantities like IMD and THD are
> simply different ways of quantifying the distortion produced by
> non-linear devices!
>
> 73, Jim K9YC
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