Word: antenna
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...learned to send signals over mountains, across oceans, and up to the moon and back. But the search for a radio that could transmit signals beneath the water's surface was sterner. To receive messages in World War II, subs had to surface or poke up the antenna-bearing periscope and risk detection. Last week word leaked that the U.S. Navy has whipped this underwater communications problem...
...peninsula jutting from the rocky northern coast near Cutler, Me., the Navy is building a $63 million transmitter complex that, by any measure, will rank as the world's biggest. Rising 980 ft., its two main antenna masts are almost as tall as the Eiffel Tower (984 ft.). With their flanking arrays of twelve smaller masts, each complex occupies the ground space of eleven Pentagons. Operating at 2,000,000 watts, the station will be 40 times more powerful than the biggest commercial stations and three times more powerful than the mightiest military transmitters known to exist...
...heart of Raytheon's projected system is an "Amplitron" tube, a chunky object 2 ft. high. The tube transmits as much as 25 h.p. on a beam of 10 cm. waves shot into the air by a dish antenna. A nest of these tubes can be focused at a point about 50,000 ft. up. Some of the beams' energy will wander off into space, but Raytheon scientists believe that a saucer-shaped receiver can capture 35% to 50%. Turned into heat, this energy could drive a gas turbine which would drive the helicopter blades...
...nearly 3½ days the delicate radio signal came bravely down from space. At last it faltered. The Jet Propulsion Laboratory's 85-ft. antenna at Goldstone Dry Lake, Calif, changed to a special filter and held the signal for a few minutes more. A receiver of General Electric's at Schenectady, N.Y. heard the signal intermittently for about an hour longer. Then it faded out. Some 410,000 miles away in outer space, Pioneer IV, the U.S.'s first man-made planet, wheeled on around the sun, but now silent forever...
Currently operating higher up the dial at 107.1 megacycles, the station will accomplish the changeover before the end of the month, according to Shenefield. At the same time, WHRB will also boost its power and increase the height of its antenna on top of Dudley Hall by 20 feet...