What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
accuracy accurate adjusted aerial alternating current alternating voltage angle apparatus base line base-line extension beacon beam width bearing buoys cathode ray tube caused cent centre line channel chart coil Consol corner reflector course cycle dashes Decca lines Decca Radar decometer depth determined direction distance dots echo sounder electric electrons error false echoes fixed frequency ground wave hyperbola increases indicated indirect radiation instance Institute of Navigation intersection kc/s knob lane identification lines of force lines of position located Loran lines Loran position maximum measured microseconds nautical miles objects observations obtained oscillator P.P.I. picture pair of stations phase difference plate port position line possible pulse Radar installation radio radiolocation ramarks reading receiver reflection reflector rotating scale scanner screen sea-return sector ship ship's shown in Fig signals sky wave speed Stavanger stylus switch tion transmission transmitting stations U.S. Navy Department velocity of propagation vertical vibrations visible wavelength zero