A new modulation technique for AM broadcasting is being touted by industry pioneer Mike Dorrough. He says the Advanced Modulation System can increase carrier modulation to 200%, improving the ...

If you’ve been shopping for a new TV at any point in the last decade, you’ve probably run across the industry’s favorite tech terms, like brightness, contrast ratio, black levels, and even high ...

Gary Peterson makes great points about the history of AM modulation (Reader’s Forum, “Modulation Limits,” Sept. 16 issue). I’d like to add to that by including a note about one of the most unique ...

A crystal radio is a common enough science fair project, but the problem is, there isn’t much on anymore. The answer is, of course, obvious: build your own AM transmitter, too. AM modulation isn’t ...