Frequency Modulated Radar |
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accurate actual adjustment aircraft altimeter altitude amplifier antenna applied approach approximation automatic average balance band beat bias bombing calibration capacitor caused Chapter characteristic circuit closing compensation complete condition connected constant correction counter coupling course cycle depends described detector determined developed difference direction directly effect equation equipment error f-m radar fall feet filter firing fixed flight follower frequency frequency modulation give given grid increase indicated length limiter linear load maximum measured megacycles modulation motion necessary noise normal occur operation oscillator output phase plate position possible potentiometer prevent produce proportional pulse radio range ratio receiver reduced reference relative relay release result rocket sensitivity servo shown sight signal simple single speed supply sweep switch target tests tion transmitter tube turn unit variation varying vertical speed voltage wave width zero