Publisher's Synopsis
This is a practical package of information on the servicing and repair of VHK and UHF mobile radios and base stations, together with the maintenance and support requirements of the overall radio systems, including antennae and mast installations.;The authors have combined to supply the technician or engineer with sufficient information to be able to undertake or plan repair and maintenance work on modern mobile radio systems with hand-held or vehicle- mounted mobiles. In addition the book covers the impact of data over radio, cellular radio and trunking technologies on servicing, diagnosis and repair procedures.;Essential background topics covered include radio theory, amplitude(AM) and frequency(FM) modulation, radio wave propagation, reception and demodulation, fundamentals of receiver and transmitter systems, principles of transmitter and receiver design, synthesizer techniques, selective tone signalling and the digital signalling control and access protocols of cellular and trunked radio.