File:Bell telephone magazine (1922) (14776056433).jpg

Identifier: belltelephonevol3132mag00amerrich (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

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The dispatching turret in the right Joregrou>id was especially designed by the telephonecompany to meet the requirements of a large power company 1953 Right-of-JVay Companies 27
Text Appearing After Image:
^Bell System engineers use a ballooyi and a portable tower to select sites Jar inicrovoaveradio telephone stations for a private-line radio telephone system being iristalled for a major power company The telephone companies are alsoextending their cable network at avery rapid rate, using both coaxialand multi-conductor types. Whilethis radio development has been tak-ing place, continuing progress has alsobeen made on improved types of car-rier current systems, some of whichhave been designed especially to pro-vide small numbers of circuits—4 to16 on an open wire pair and 4 to 20on a cable quad. These systems arewell adapted to meet the expandingrequirements of oil, pipe line, trans-portation, and utility systems by pro-viding additional capacity on wire orcable routes. Furthermore, thesesystems can be used for integratedwire and radio arrangements in whichthe carrier currents are transmittedpart of the way by wire lines and part by radio without interposing carrierterminals at the j

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