[AMRadio] Physical Reality of Sidebands


Jim Wilhite w5jo at brightok.net
Mon Jan 17 11:25:02 EST 2005


Out of curiosity Gary, where do you think the multiplication occurs?  In the 
plate of the final(s), at the juncture of the plate and output network, or 
in the final network?

I have pondered this one and have an opinion, but would like yours and 
others opinions.

73  Jim
W5JO

----- Original Message ----- 
From: "Gary Schafer" <garyschafer at comcast.net>
To: "Discussion of AM Radio" <amradio at mailman.qth.net>
Sent: Monday, January 17, 2005 10:01 AM
Subject: Re: [AMRadio] Physical Reality of Sidebands


>
>
> Bob Bruhns wrote:
>> Indeed, 'tis a puzzlement.  I can draw three continuous sine waves of
>> apppropriate amplitude, frequency and phase, corresponding to carrier, 
>> upper
>> sideband and lower sideband, and I can add them point by point, and I can
>> duplicate a 100% modulated AM signal waveform as we understand it.  I 
>> have
>> to believe that this works backwards; if I make this waveform by 
>> modulating
>> a carrier in an AM transmitter, then I am synthesizing the same 
>> continuous
>> sine waves.
>





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