July 18th 07, 08:59 PM
posted to sci.electronics.basics,rec.radio.shortwave,rec.radio.amateur.antenna,alt.cellular.cingular,alt.internet.wireless
|
|
external usenet poster
|
|
First recorded activity by RadioBanter: Jul 2006
Posts: 666
|
|
AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-lowcarrier frequency
John Fields wrote:
log(sin(a))+log(sin(b))
describes the addition of the logarithm of the amplitude of sin(a)
to the logarithm of the amplitude of sin(b), which still produces
only a sum.
That is, no sidebands.
log(x)+log(y)=log(x*y)
jk
|