fm
Proton radius unit
Fm is an informal written abbreviation for "from," common in texting and casual online communication: fm where? meaning "from where?" It appears in quick, compressed messages where vowels are dropped to save keystrokes. (Capitalized FM is frequency modulation radio.)
scale of length measurement
Astronomical distance measure
parsec · astronomical unit · megaparsec · kilometer · mile
radio modulation type
fmAM
Pre-midday designation
amplitude modulation · shortwave · longwave · MW · satellite radio
- FM radioWireless audio transmission system
- FM stationBroadcast frequency for audio
- FM bandBroadcast frequency range
- FM transmitterDevice broadcasting audio wirelessly
- FM tunerBroadcast frequency receiver
- FM stereoBroadcast with left-right separation