[BC] AM Carriers

[Richard Fry]

Earlier post:
>It's so nice to run a 1000 Watt to 1500 Watt carrier AM
>on the ham bands, isn't it?
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Don't know if this was a sarcastic comment, but other than for Morse code, a 
carrier really serves no purpose toward conveying information that can't be 
provided by other techniques, and save transmit power in the process.

As examples:  the L-R FM stereo signal is transmitted with no carrier, and 
so are the chrominance portions of NTSC & PAL color television.  And of 
course, the SSB mode used by the military and many hams has no carrier.

RF