Frequency Modulated Radar

adjustment air speed aircraft altimeter altitude amplifier amplitude amplitude modulation antenna switching approximation audio automatic automatic gain control average azimuth band beat-note bias calibration capacitance capacitor cathode characteristic circuit closing speed constant correction counter output coupling cycles per second detector diode direction effect electron equation equipment f-m radar filter flight frequency f frequency modulation grid indicated input limiter linear load local oscillator magnetron maximum megacycles megacycles per second modulation cycle modulation frequency modulation sweep motion noise operation oscillator phase plate position potentiometer produce pulse quency radar system radio frequency range and speed range frequency ratio receiving antenna relay resistor resonant result rheostats servo shown in Fig slant range Sniffer speed frequency speed sensitivity square wave standing waves sweep width switched counter target tion transmitter triode tube unit upsweep variation varying vertical speed wave form Yagi Antenna zero