INDEX-3 Radar, accuracy—Continued transmission methods, 1-25 to 1-30 continuous-wave, 1-25 to 1-27 frequency-modulation, 1-27 pulse-doppler, 1-29 pulse-modulation, 1-28 to 1-29 types, 1-33 to 1-39 airborne, 1-38 CCA and GCA, 1-38 missile guidance, 1-37 search, 1-33 to 1-35 track, 1-37 Radiation hazards, 4-22 Range, 1-3 to 1-6 Range gate, 3-11 Range height indicator (RHI), 3-3 Range marker, 3-11 Range resolution, 1-13 Range step, 3-13 Ranging circuits, 3-10 3-14 Receivers, 2-30 to 2-48, 4-9 to 4-12 bandwidth, 4-12 components, 2-33 to 2-39 logarithmic, 2-45 to 2-47 monopulse, 2-47 to 2-48 moving-target indicator (MTI), 2-42 to     2-45 sensitivity, 4-10 to 4-12 special circuits, 2-40 to 2-42 superheterodyne, 2-32 to 2-39 Recovery time, 1-5, 4-13 to 4-14 Reflex klystron, 2-33 Refraction, 1-17 Refractive index, 1-17 Relative bearing, 1-11 Resolution, 1-13 to 1-14 Resonance chamber, 4-5 Rf radiation hazards, 4-22 Ring time, 4-7 to 4-8 S Safety, 4-22 to 4-24 Scanning, 1-20 to 1-25 Sea clutter, 2-42 Search radar, 1-12, 1-33 to 1-36 Second-sweep echoes, 1-6 Sensitivity time control (STC), 2-40 Slant range, 3-2 Spectrum analyzer, 4-2 Standing wave measurement, 4-14 Superheterodyne receiver, 2-32 to 2-39 Support systems, 4-14 to 4-21 Synchronizers, 2-1 to 2-6 T Thyratron, 2-12 Timer, 2-1 TR tube, 2-21 to 2-26 Tracking radar, 1-37 Transmission methods, radar, 1-25 to 1-30 Transmitter frequency, 4-2 to 4-8 Transmitter power measurement, 4-8 to 4-9 Transmitters, 2-6 to 2-20 keyed-oscillator, 2-13 to 2-16 power amplifier, 2-16 to 2-20 Traverse signal, 1-24 Trigger generator, 2-1 Trigger pulses, 2-2 True bearing, 1-3, 1-11 Two-dimensional radar, 1-34 V Vertical plane, 1-3 Video enhancement features, 2-39 Voltage standing wave ratio (vswr), 4-14 W Wavefronts, 3-16 X X-ray hazard, 4-23