e Radiation MH (Modified Huffman) data terrestrial links, 26/10-11 Monopolies, telecommunication, 11/5 compression, 60/6-8 Mobile Switching Centre see MSC Morphology, ionosphere, 9/3-5 MHS (Message Handling System), OSI, Modal dispersion, optical fibres, 15/10 Morse code, 10/6 Mode, mean and median, 1/3-4, 1/5 Motion compensation inter-frame coding, MIB (Management Information Base), Modems, 57/26-7 OSI, 16/11, 16/13, 16/14, 16/20-1 applications, 39/12-13 MOTIS (Message Oriented Text Michelson interferometer, 7/8 operational principles, 39/3-5 Interchange System), 16/9 Microcells, PCN/cellphone, 47/17, 48/11 safety with PC connection, 23/6-7 Moving coil telephone receivers, 58/5 Micron, 7/3 standards, 39/3, 39/5-9 MPT1327 sample command structure, Microphones, 58/12 types and features, 39/10-13 46/13 Microwave systems, V22, V29, V32, V42, 56/3 MPT (Ministry of Posts and digital and analogue, 50/10-14 Modes, light propagation, 53/4 Telecommunications) Japan, 22/26 ducting, 50/3 Modular power plant, 24/11 MR (Modified READ) fax coding, 60/7-8 earth bulge effects, 50/3 Modulation, MS (Message Switch), DMS, 32/23 fading, 50/5-7 analogue, 18/1-16 MSAP (Mini Slotted Alternating Frenel zones, 50/4 angle, 18/7 Priorities), 13/20 K factor, 50/3 Armstrong, 18/8 MSC (Mobile Switching Centre), coherent, 18/8 line of sight antenna, 17/12 AXE system, 32/18 noise, 50/10-11, 50/17 coherent demodulator, 18/5 cellphones, 47/3-4, 47/15 path clearance, 50/3 DSBSC (Double SideBand Suppressed PCN, 48/4, 48/6 Carrier), 18/4-6, 18/7 MSISDN (Mobile Station ISDN propagation, 27/10-13, 50/5-7 frequency, 18/7-12 Number), 48/7 Raleigh fading, 50/6 frequency spectra, 18/3-4 MSOH (Multiplexer Section OverHead), receivers, 50/16 independant sideband, 18/6 SDH, 42/15 specifications, 50/15-16 PAM (Pulse Amplitude), 18/12-15 MTBF (Mean Time Between Failures), super refractive effect, 50/4 phase, 18/7-12 microwave systems, 50/16 surveys, 50/5 PPM (Pulse Phase Modulation), standby supplies, 24/4, 31/17 transmitter power, 50/16, 50/17 18/14-15 MTM (M