Identifier: belltelephonemag00vol2930amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
lephone routes whichcross the continent. Four consist prin-cipally of open wire, one of coaxialcable, one of twin carrier-current ca-bles, and now one of radio relay.The seven routes spread from Mon-tana to the Mexican border, but allare variously interconnected, andtheir number and variety are impor-tant factors in the countrys defenseprogram. Radio relay has been discussedpreviously in this MAGAZINE,* and isinterestingly described on pages 170-173 of Dr. Buckleys contribution tothis issue. The pictures on the nextdozen pages, showing radio relaytowers in many locations from theAtlantic to the Pacific, may stir thereaders imagination to ponder the in-venting and designing, the manufac-turing and installing, the engineeringand testing and building which pre-ceded the opening of this $40,000,000telephone route to the service of theAmerican people. * See Radio Relay and Other SpecialBuildings, Magazine, Spring, 1950, andSpanning the Continent by Radio Relay,Magazine, Winter 1950-51. 175
Text Appearing After Image:
Westward-pointing antennas atop the Long Lines headquarters building in New Yorkmark the eastern end of the new radio relay system 176 Solid amid the rich fields ofthe Plain People of Pennsyl-vania stands a radio relaytower. Of its four squaremetal-lens antennas, two fac-ing East and two West, onein each direction is to trans-mit and the other to receivethe radio signal

Note About Images