On Sun, 11 Jun 2006 21:16:28 GMT, Jan Panteltje
wrote:
+++On a sunny day (11 Jun 2006 13:35:21 -0700) it happened "Telstar Electronics"
wrote in
oups.com:
+++
+++Not sure what you're talking about. When I say DSB... I'm referring to
+++what others call the AM mode.
+++
+++www.telstar-electronics.com
+++
+++
+++DSB-SC (as you originally referred to) stands for:
+++Double Sideband Suppressed Carrier.
+++So, if the carrier is surpressed, then you have only 2 sidebands if a signal
+++is present (single tone modulation), nothing if no modulation is present.
+++ http://www.ece.drexel.edu/courses/ECE-S306/lab3.pdf
+++Look at figure 4, for a single tone modulating audio signal.
+++You will notice it is quite different from AM!
+++
+++Normal AM is also DSB, but the carrier is not surpressed.
+++Better to say AM if you mean AM, DSB is often used for DSB-SC.
______________
AM == Double Sideband Full Carrier.
james