FM900 VHFIUHF Radiotelephones
The FM-900 series of boot-mounted mobile radio- telephones is designed around a singie-loop frequency svnthesiser controlled bv a microcom~uter The FM900 may be programmed for up to 1200 channels with a transmitter power up to 25 W It provides two-way communication between mobiie and base station when operating two-frequency sirnplex or rnay comrnuncate directly with other mobiles and personal radios operating in the all-informed single-frequency simplex rnode Full duplex varlarits are also available wilh an extended case providing a thermally isolated power amplifier for continuous transmissions The equipment is also capable of 16 kbtsls digital speech encryption Extension control units are available to meet a wide range of operational needs in civil or rniilary vehicles
STATUS In use with civil police in Europe and the Far East Also in service with the Royal Air Force the British Army and at Ministry of Defence estabii~hments
Manufacturer Philips Radio Commun~cation Systems Ltd, Cambridge