National Geographic : 1946 Mar
Radio relay towers, about 50 miles apart, will gradually replace thousands of miles of telegraph poles and wires. Now,telegrams "leapfrog"storms through RCA Radio Relay With the radio relay system, de veloped by RCA, Western Union will be able to send telegraph mes sages without poles and wires be tween principal cities. "Wires down due to storm" will no longer disrupt communications. For this new system can transmit telegrams and radiophotos by in visible electric microwaves. These beams span distances up to fifty miles between towers and are com pletely unaffected by even the angriest storms. Moreover, the radio relay system is less costly to build and maintain. This revolutionary stride in com- munications was made possible by research in RCA Laboratories the same "make it better" research that goes into all RCA products. And when you buy an RCA Victor radio or television set or Victrola* radio-phonograph, or even a radio tube replacement, you enjoy a unique pride of ownership. For you know, if it's an RCA it is one of the finest instruments of its kind that science has achieved. Radio Corporation of America, RCA Building, Radio City, New York 20, N.Y. . . . Listen to The RCA Victor Show, Sundays, 4:30 P.M ., Eastern Time, over NBC Network. Research in microwaves and electron tubes at RCA Labora tories led to the development by the RCA Victor Division of this automatic radio relay system. Here you see a close-up view of a micro wave reflector. This system also holds great promise of linking tele vision stations into networks. * RADIO CORPORATION of AMERICA *Victrola, T. M. Reg. U . S. Pat. Off.