Thread: AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency
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Old July 2nd 07, 05:13 PM posted to sci.electronics.basics,rec.radio.shortwave,rec.radio.amateur.antenna,alt.cellular.cingular,alt.internet.wireless
[email protected] Mark@k4yz.org is offline
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Default AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency
On Mon, 2 Jul 2007 16:41:01 +0100, Ian Jackson wrote:
In message , Michael A. Terrell
writes
Jeff Liebermann wrote:

Conventional TV is VSB (visidual side band)


Vestigal Sideband


Better still, Vestigial Sideband!

You're both wrong. It is VIRTUAL SIDEBAND because it isn't completely
real and the other sideband which isn't virtual carries the missing high
frequency modulation info. Once it gets into your second detector then
it becomes real due to the laws of product modulation.

Next, you will be telling people that VGA doesn't stand for "virtual
graphics array."

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