That is also a mode that is used still today by some ham radio linking and the military. I believe the emission designation is 30K0F3E or something close to that.I don't think having an FM category works, because that is simply the mode
In order, wrong, wrong, wrong, wrong, and wrong.Standard FM is still used by most hams, NOAA Weather Radio, Marine, Part 90 Low Band , and some UHF Part 90 (I think).
Yes, FM is A mode. FM is also a modulation-specific segment of the FM mode - just as NBFM and SNFM denote certain characteristics, so does the absence of any letter before "FM". When FM came about, there was only one type of FM, so it was simply called FM. Today, there are many types of FM. All but one have additional letters with "FM" to denote the difference.No - FM is a mode. NFM (and WFM) is exactly the same mode. The extra letter indicates the bandwidth in general terms. FM means absolutely nothing at all without the deviation, in the same way people mis-label AM. LSB, and USB are both variations of the AM mode - even though my transmitter has all three switches.
FM is the mode that all the ones we're talking about are. Clearly, broadcast and narrow bandwidth FM are different, and a broadcast receiver isn't much good at receiving the tiny deviation a comms channel has - but they are BOTH FM.
FM was the original FM mode? That's like stating that English was the first English. We're talking about the difference between the English spoken in Liverpool and Suffolk. The AM equivalent could then be Irish, with a north and south variation.