Word: antenna
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...Prevent Frying. The army is spending $75 million on Kwajalein, and the island already looks like the set for a science-fiction movie. Close to the coral beach, a circular, steel-mesh fence, 65 ft. high and 680 ft. in diameter, surrounds a rotating, triangular radar antenna, 80 ft. on a side. This electronic monster is named ZAR (Zeus Acquisition Radar), and when it sends its pulses into space to probe for incoming missiles, the fence will act as a shield to keep the powerful radio waves from frying all Kwajalein. Crewmen operating ZAR will go to work through...
...Lincoln Lab worked out the U.S.'s DEW line early-warning system against attack by enemy aircraft, the SAGE system to coordinate retaliation, and the BMEWS system for warning against enemy missiles. At M.I.T.'s Millstone Hill field station at Westford, Mass., is the 84-ft. dish antenna that has bounced radar pulses off the planet Venus. In all, M.I.T. operates $50.8 million worth of installations for the Government...
When it passes closest to Venus, the vehicle will be some 43.5 million miles from earth. At that point, "an accurately aimed parabolic antenna, for super-long-range communication, will open." To catch the distant signals, the Soviets have set up a special tracking and control center inside Russia, have also installed ' smaller telemetering stations on Soviet ships at sea. But there is some doubt that Venusnik will get through to earth. Last week the Soviets tried to reach it by radio and failed, said further attempts will be made "on subsequent days...
Each telescope consisted of a small transistorized receiver and a collapsed antenna which extended to a length of ten feet on radio command. The total weight of the four gadgets was less than ten pounds; operating frequencies were between 700 kilocycles and 13 megacycles...
...chief projects: three-dimensional radar, which, unlike present radar that shows only distance and bearing, will also show altitude. The FAA is testing an experimental 3-D radar apparatus, designed by New York's W. L. Maxson Corp., which picks up a target with a supersensitive antenna, shows one blip in the center of the screen for direction and bearing, a second blip on the edge of the screen that is calibrated with concentric rings, each representing 10,000 ft. Thus, the controller knows at a glance whether two planes are at the same altitude and in danger...