"Brenda Ann" wrote in message
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"Toxic" wrote in message
news
Does it really require a significant amount of extra electricity to run
the HD encoders and modulators, or is it like turning off the illuminated
station callsign on the front of the building to save a couple pennies?
If dwindling listenership in broadcast media is any predictor, then it
may all be moot as more stations do major cost cutting and go dark.
From what I have been able to discern, the IBOC sidebands are actually
generated by a separate transmitter, then combined with the AM signal
(much as the AM video and FM audio were on analog television). Digital
transmission is fairly energy intensive.
In the scheme of things...not really.