MANY USES IN PEACE
VALUE OF RADAR
SEA NAVIGATION
Radar born and tested in war, will have many uses in peace.
At sea radar will be particularly useful, and navigators of ships will ?;oon be able to watch on an electron screen any objects on the water which are approaching them or which they arc approaching—such as icebergs, partly-submerged wrecks, lighthouses, cr other vessels. On this new radar screen, spots rae seen which can be easily interpreted by a skilled operator, who can tell at what distance and from which direction the object is approaching, and whether it lies in the path of the vessel or not. The "searchlight" beam of radio waves sent out by a rotating antenna en the ship strikes any object in its path, and the waves are scattered, some of them being echoed back and caught by the aerial, which acts also as receiver. The received signals are made to throw bright spots, on a kind of television screen in a cathode tube. The screen is provided with a number of circles of increasing size, representing distance. Thus, by noting the position of the spots in relation to the circles, the distance of the approaching object is immediately known. Fog and pitch darkness at sea are thus robbed of their perils.
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Bibliographic details
Bay of Plenty Times, Volume LXXIV, Issue 14057, 11 May 1946, Page 4
Word Count
216MANY USES IN PEACE Bay of Plenty Times, Volume LXXIV, Issue 14057, 11 May 1946, Page 4
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