> ...since we use the suppressed carrier > frequency on all other bands. Actually, all of the present ham bands are assigned that way. For example, when the FCC specifies the upper end of the 20M band to be 14350 kHz, you must set your dial frequency (suppressed carrier) to keep your signal within the band. Your dial should never go higher than 1.5 kHz below 14300 kHz for USB. Same principle.