Quote:
Originally Posted by Whirled One
Hmm. That's true-- good point. However, oddly enough, from a practical standpoint, it would appear that you don't actually require a video carrier, at least not on most sets. An illustration of this is the fact that it's possible(*) to hear analog celluar phone audio (which is transmitted using FM) on TVs that have coverage of the full channel 14-83 UHF band. There's certainly no video carrier up there!
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That's a good point, I have also heard some of those cellular phones on
higher UHF channels. Maybe the interference from some other transmitter
approximately 4.5 MHz away was acting as the LO, but I'm not sure.