7 articles
Land mobile radio system
A land mobile radio (LMR) system is a two-way radio system connecting mobile and portable stations with base stations, used for mission-critical voice by public safety agencies.
Multi-Use Radio Service
The Multi-Use Radio Service (MURS) is an American license-free two-way radio service created by the FCC in 2000, operating on five shared VHF channels with a 2-watt power limit.
NXDN
NXDN (Next Generation Digital Narrowband) is a narrowband digital two-way radio protocol for land mobile radio, developed by Icom and Kenwood to meet the FCC's 12.5 kHz narrowbanding requirement.
PMR446
PMR446 (Private Mobile Radio, 446 MHz) is a European license-free walkie-talkie service created in 1998, limited to 500 mW, with 16 analog and 32 digital channels.
Project 25
Project 25 (P25), also called APCO Project 25, is a suite of standards for digital public safety radio, begun in 1989 to let radios from different manufacturers interoperate.
Radio over IP
Radio over IP (RoIP) is a method of converting analog radio signals into packets carried over IP networks, most often through gateways linking radios, dispatch consoles, and telephones.
Two-way radio
A two-way radio is a transceiver that sends and receives voice or data over radio, usually in half-duplex push-to-talk mode, used in land mobile, public-safety, and license-free services such as FRS and PMR446.