median and mode, 1/3-4 Lithium polymer type battery, 24/13 Magnetic vectors, waves, 6/3 Measurements, systems see Testing, Little's law, 3/3, 3/7, 3/15 Magnetosphere, 9/3 measuring and monitoring LIU (Link Interface Unit), DMS, 32/21 Main exchange power systems, 24/10-11 Media filters, 33/5 LLP (Lightweight Presentation Protocol), Mains filters, Median, 1/3-4, 1/5 OSI, 16/23 RFI limitation, 23/22-3 Medical applications, frequency Loading, cable, 15/4 safety problems, 23/8 allocations, 26/6 Local loops, 11/14 Mains transients as EMC source, 23/11 Medium utilisation, multiple access, 13/4 Location by radio, frequency allocations, Maintenance, MegaStream, BT TDM, 21/16 26/13 software, 25/5 Meggit error trapping, 14/8 Location updating, PCNs, 48/7-8 System 12, 32/12 Memory switching, 31/14 Look and Feel software simulation, 25/11 Maintenance and costs, power systems, Memoryless channels, discrete, 4/6-9 Loop calling, PABXs, 34/5-6 24/14 Memoryless property, queuing theory, Loran C pulse navigation system, 9/6 Major path satellite, 51/16 3/5-6 LoS (Line of Sight) see Line of sight Majority logic decodable codes, 14/9 Mercury Communications Ltd, 11/10, systems; microwave systems; millimetre Management, networks see Network 22/23 wave system paths management Centrex, 35/6 Index/13 Meridian mail system, 35/5 MMS (Man Machine communication QAM (Quadrature Amplitude), 19/11 Messaging services, cellphones, 47/15 Subsystem), APZ subsystem, 32/17 quantisation distortion, 19/15-16 Meteor scatter communications, 27/13-14 MNP (Microcom Networking Protocol), ring bridge modulators/demodulators, Meter pulse detection, PABXs, 34/6-7 modems, 39/8, 39/11 METRAN (Managed European Mobile power plant, 24/14 sampling, 19/12-13 Transmission Network), 11/10 Mobile stations, satellite systems, 51/13 MF (Mediation Function), TMN, 16/17, frequency allocation, 26/11, 26/16 Monitoring see Testing, measuring and 16/18 measurements, 61/31 monitoring MF (MultiFrequency) signalling, 31/6 satellite links, 26/11, 51/17-18 Monopoles, radiation from se