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A Brief History of the Origin and Development of Military
General Concepts of Radio Communications and a Brief
Properties of Radio Waves and Nature of Their
14 other sections not shown
accuracy aircraft alternating current altitude amplifier amplitude angle antenna antiaircraft artillery antiaircraft defense application artillery aiming aviation azimuth band bomber capacitor channels circuit combat coordinates detection determination directional antennas electric electronic enemy energy ensure fighter fighter aircraft firing flight frequency frequency modulation heterodyne high-frequency homing device horizontal increase indicator screen infrared rays installed instruments interferences intermediate frequency ionosphere landing layer located mechanism method missiles modulation necessary operation oscillations pattern of directivity plan position indicator plane position possible propagation of radio pulse radar radar equipment radar facilities radiation radio beam radio communications radio compass radio direction finder radio link radio navigation radio network radio receivers radio relay line radio relay stations radio stations radio waves radiotelephone reception reconnaissance reflected signal refraction resolving power rocket ship shore short-wave speed surface switch tactical telegraph telephone television transmission troposphere tube ultrashort vertical voltage wavelength