[ARC5] Lopsided modulation

[Richard Knoppow]

     Time domain vs: frequency domain seems to confuse a lot of 
people.
     I am reminded of a Larson E. Rapp piece in QST on "Single 
Sideband FM". There is a collection of these somewhere on the web.

On 2/28/2018 1:21 PM, Tom Lee wrote:
> There seems to be a danger of erroneously thinking that 
> asymmetrical *time* waveforms somehow imply asymmetrical sideband 
> *spectra*. I've only been talking about the latter, as that was 
> the subject of the initial conundrum.
> 
> Arbitrary time waveforms will almost never be symmetrical, so 
> asymmetry there is the norm, but that has absolutely nothing at 
> all to do with whether the upper and lower *sidebands* of an AM 
> signal will fail to be mirror images of each other. If I feed a 
> perfect AM modulator with a horribly asymmetric time waveform 
> (produced, say, by a limiter with asymmetric limits), the 
> sidebands produced will still be perfectly symmetrical.
> 
> Cheers
> Tom
> 

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL