MAKE A MEME View Large Image NavigationResearch 016.jpg Fig 23- Radio direction finder or coil aerial used in measuring the distortion of radio waves in the vicinity of trees towers wires buildings etc Fig 24- Model set up in the radio laboratory to illustrate the use ...
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Keywords: NavigationResearch 016.jpg Fig 23- Radio direction finder or coil aerial used in measuring the distortion of radio waves in the vicinity of trees towers wires buildings etc Fig 24- Model set up in the radio laboratory to illustrate the use of the radio direction finder Radio signals were sent out from the two lighthouses and the direction from whence they came was determined by the apparatus on the ship The latter could therefore determine its position even in fog and under other conditions which rendered the lighthouse lamp invisible From NBS Special Publication 46 National Institute of Standards and Technology National Institute of Standards and Technology PD-USGov-NIST PD-USGov National Bureau of Standards National Institute of Standards and Technology RDF receivers
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