The best explanation of the Bell System that I have ever seen.
This is an AT&T microwave radio relay tower located in Cle Elum, Washington. A friend and I hiked up this mountain in late 2010.
Coordinates: 47-7-57.05N 120-53-7.34W
FCC ASR Registration Number: 1281229
Height: 67 feet above ground
Total Height: 3937 feet above sea level
Owner: American Towers, Inc.
Took a picture of the microwave relay tower in Lightfoot, Virginia the other day. Thought I’d share…
During the 1950s, the AT&T Long Lines’ system of microwave relay links carried the majority of US long distance telephone traffic as well as intercontinental television network signals. The main motivation to use microwave radio instead of cable was that a large capacity could be installed quickly and at less cost. It was expected at that time that the annual operating costs for microwave radio would be greater than for cable. There were two main reasons that a large capacity had to be introduced suddenly: Pent up demand for long distance telephone service, because of the hiatus during the war years, and the new medium of television, which needed more bandwidth than radio.