342
Piezoelectric devices, 95, 105
Piezoelectric effect, 95, 105
Pilot carrier, 117
Pilot tone, 122
Plain text, 167
Polarisation, 4, 54
Polarised, 4
Potential difference, 75
Power in unmodulated carrier, 114
Power output, 143
Power ratio, 237, 331
Power relationships AM wave, 114
Power supplies, 226, 236
Power, 114, 231, 331
Power-Volume ratio, 237
Power-Weight ratio, 237
Pre-emphasis, 121
Pre-scaler, 92
Primary batteries, 238
Privacy, 167
Private Mobile Radio (PMR), 183,
212
Programmable equipment, 91, 157
Programmable read only memory
(PROM), 157
Propagation velocity, 1, 106, 323
Propagation, 3, 159
Propagation, direction of, 3
Propagation, methods of, 13
Pseudo-noise generation, 131
Public Access Mobile Radio
(PAMR), 202
Pull-ability, 99
Pulse Amplitude Modulation (PAM), ...