Quote:
Originally Posted by soundman2
I have been told that you guys in the USA cannot use FM on CB. Is this true?
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We have a UHF-FM service in the 462 MHz range that was once called a class of "CB" (now partly similar to your PMR446 service), but the 27 MHz CB band has always only allowed AM and SSB signals here. That entire band has been basically an unregulated "sewer" since the mid-1970s, though, so it would not surprise me that people use FM-mode equipment here in the USA. (I do not see the point of doing so, though. FM voice signals do not travel as far as AM or SSB with the same RF power for DX-type operating, and anyone in the USA who wants local radio communication should pick almost anything other than CB radios (legal or otherwise) as a method of doing so.)