April
2005, Issue 177
Test Your
EQ
|
Answer
8At
first glance, it would appear that a sampling rate of
greater than 106 kHz would be required. However, the two
sidebands of the DSB difference signal are in fact redundant,
and you do not lose any information if you sample the
composite signal synchronously at 76 kHz. There’s at least
one brand of commercial studio-to-transmitter link that
works this way.
Contributor:
David Tweed