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Why a Radar?
Present State of the Art
Radar for Coastal Navigation
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4-mile range analog display analog radar Andrea Doria antenna assembly antenna system azimuth beam width bearing line boat's breakwater bridge buoys cathode-ray tube chart compass course being steered cove cruising degrees display console display unit distance electronic bearing marker emitted factors feet Figure fixed range rings harbor headland horizon inches indicate installation island knots loran magnetic bearing Marine mast maximum range measure microsecond miles minutes mounted numeric display open scanner operating port position pulse lengths racon radar equipment radar range radar reflector radar system radarscope radiated radio direction finder radio waves radiotelephone radome range scale raster-scan display raster-scan radars receiver reflected relative bearing repetition frequencies rotating safe speed sailboat scope screen sea return searchlight ship shoreline short-range scales shown shows signal small craft small-craft radar starboard Stockholm switch target temperature inversion tion transceiver transmitter Variable Range Marker vessel whistle