Abstract
THE application of directional wireless methods to assist aerial and marine navigation has been progressing steadily during the past few years. After passing a period of uncertainty as to its accuracy and reliability, the wireless directionfinder has established itself as a very useful aid to marine navigation. Many hundred ships of all nationalities are now fitted with direction-finders, and a large number of fixed beacon transmitting stations are now in operation in various parts of the world for the specific use of such direction-finding installations.
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References
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SMITH-ROSE, R. The Equi-Signal Zone Radio Beacon and Air Navigation. Nature 126, 98–100 (1930). https://doi.org/10.1038/126098a0
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DOI: https://doi.org/10.1038/126098a0