Professional mobile radio

Professional mobile radio (also known as private mobile radio (PMR) in the UK and land mobile radio (LMR) in North America) are field radio communications systems which use portable, mobile, base station, and dispatch console radios. Operation of PMR radio equipment is based on such standards as MPT-1327, TETRA, APCO 25, and DMR which are designed for dedicated use by specific organizations, or standards such as NXDN intended for general commercial use. Typical examples are the radio systems used by police forces and fire brigades. Key features of professional mobile radio systems can include: