F|
|
| FAA | Federal Aviation Administration (USA) |
| FAGS | Federation of Astronomical and Geophysical Services |
| FAST | Fundamental Astronomy by Space Techniques Consortium |
| FB | Base station (in a mobile radio system) |
| FBW | Fractional Bandwidth |
| FCC | Federal Communications Commission (USA) |
| FDD | Frequency Division Duplex |
| FDP | Fraction of Degradation of Performance |
| FDMA | Frequency Division Multiple Access |
| FEC | Forward Error Correction |
| FM | (Working Group) Frequency Management (ECC) |
| FM | Frequency Modulation |
| FMCS | Frequency Management Sub-Committee (NATO) |
| FPLMTS | Future Public Land Mobile Telecommunication System (see UMTS) |
| FS | Fixed Service |
| FSK | Frequency-Shift Keying |
| FSS | Fixed Satellite Service |
| FT | France Télécom (F) |
| FWA | Fixed Wireless Access |
| FX | Fixed Service |
