Word: antennas
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...public air, it will use coaxial cable strung on telephone poles to link each set with the broadcast. And instead of alienating the local movie exhibitors, it has enlisted them as partners. The idea originated with Philadelphia's Jerrold Electronics Corp., which pioneered in wiring community antenna systems for towns too remote for ordinary TV signals. The company set out to persuade movie exhibitors that it would "give them a chance to get into the home and compete with TV on its own battleground." The idea appealed to Video Independent Theaters, a chain of 150 movie houses...
...submarine, the Polaris will have a solid propellant. It may be launched directly out of a special compartment in the submarine, or it may be released and allowed to float upward before its main motor ignites. Perhaps the submarine will have raised some sort of antenna above the surface to steer the missile on its course by radio after it has risen from...
Preliminary plans for the Green Bank telescope were drawn up nearly three years ago. The new $2,000,000 telescope will have a 140-ft. paraboloid antenna (second in size only to the 250-ft. antenna being constructed in England) which should allow it to pick up spatial wave lengths never before recorded. Specifically, the astronomers hope that they will be able to "see through" the great drifting clouds of hydrogen, which have previously occupied their attention, to more interesting clouds of the deuterium atom (heavy hydrogen...
...telescope site, researchers crisscrossed the East examining and rejecting 29 different locations. They were looking for a valley surrounded by mountains which would serve as a shield against local radio noise. They also wanted a location far enough south so that the telescope's unsheltered antenna would not be exposed to wind, snow and ice. Green Bank filled the bill admirably. Radio noise in the valley was only a thousandth of the noise at the Naval Research Laboratory radio telescope in Washington. Moreover, Green Bank was distinguished by the fact that no commercial aircraft pass over or near...
...densely traveled routes, the radars will also pick up small aircraft flying at altitudes lower than 15,000 feet. Designed and built by the Raytheon Manufacturing Co., the new installations will each use a mammoth 40-ft. antenna and will be able to feed up to 15 monitor screens simultaneously. Among their other refinements: an appreciable decrease in the "clutter" which plagues much radar during rainy weather; a filtering system which cuts out reflections from fixed objects, thus registering only moving objects; electronically generated maps, which can be superimposed on the radarscope for immediate identification of the territory over which...