Mobile radio or mobiles refer to wireless communications systems and devices which are based on radio frequencies (using commonly UHF or VHF frequencies)...

The General Mobile Radio Service (GMRS) is a land-mobile FM UHF radio service designed for short-range two-way voice communication and authorized under...

Mobile radio telephone systems were mobile telephony systems that preceded modern cellular network technology. Since they were the predecessors of the...

A mobile phone or cell phone is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone...

Professional mobile radio (also known as private mobile radio (PMR) in the UK) are person-to-person two-way radio voice communications systems which use...

A land mobile radio system (LMRS) is a person-to-person voice communication system consisting of two-way radio transceivers (an audio transmitter and...

Digital mobile radio (DMR) is a digital radio standard for voice and data transmission in non-public radio networks. It was created by the European Telecommunications...

Citizens band radio (CB radio) is a land mobile radio system, a system allowing short-distance one-to-many bidirectional voice communication among individuals...

The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network. While the transmission...

number of remote mobile units. Selcall is widely used, though is becoming superseded by much more sophisticated digital systems. Mobile radio telephone systems...