Bell telephone magazine (1922) (14568415968)

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

Text Appearing Before Image:

e in a room located part wayup, with the power equipment on theground. This change, which studiesindicate will save money in buildingconstruction, has been found practi-cable as the result of experience overthe past year. Designs have beenworked out to obtain structures forgeneral use for heights up to 250 feetin increments of I2j feet. A designhas also been completed for a steeltower more than 400 feet tall whichwill be erected adjacent to the tele-phone building in Des Moines, Iowa.In this case, the equipment will belocated in a penthouse on the roofof the telephone building. Locations for buildings for wirecommunication systems are generallyindependent of terrain, and definite rules have been made and are fol-lowed for the spacing between sta-tions. This is not so for radio relaysystems: with them, it is a case ofsetting them up about as far apartas possible—taking into accountboth technical considerations and thecountry along the route. For Hatcountry, assuming the use of struc-

Text Appearing After Image:

The antennas visible near the top of the the left face oj the tower of this commercialbuilding in Columbus, ()., are 450 feetabove the street much higher than the ele-vation offered by the roof of the localtelephone building 32 Bell Telephone Magazine SPRINC tures about 200 feet high, the spac- structures. It is a pleasure to nott ing might be only 20 miles between that the cooperation of and the assist stations. If two high mountains ance received from the government could be found on which stations representatives in these matters ha; could be placed, with a broad, Hat been of great assistance in expedit valley between, much wider spacing ing the work,might be employed. Then again, a very short spacing might be required,perhaps not more than 10 miles,which could be the case when gettinginto a city over chimneys, and build- Spedal Buildings for Long Distanct The ERECTION of buildings for useexclusively for long distance tele-phone service is, of course, nothing minal building and at

1950 in ohio bell telephone magazine 1950 bell telephone magazine buildings le veque tower book illustrations telephone bell telephone company american telephone and telegraph company history of technology images from internet archive des moines iowa

1922

U.S. Government Printing Office

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