Identifier: belltelephonemag15amerrich (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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Text Appearing Before Image:
Newark Police Demonstrating Two-way Radio Over the Ultra-high-frequency Channel.
Text Appearing After Image:
Ax Ev.\Ns\ II i.K, Im)., Police Patroi. Car Equipped with iiii. Twu-ww Ui.tra- HIGH-FREQIIENXY RaDIO SySTEM, SHOWING THE TRANSMITTING AnTENNA AT THE Rf.AR OF TiiK Car. COMMUNICATIONS AND POLICE PROTECTION longer merely an extensive eastern teletypewriter network butthe beginning of a truly national system. The municipal teletypewriter system may vary from a fewsending and receiving machines to the 136 in New York City.The teletypewriter system of the Police Department of theCity of New York is, naturally, complex. The greater city isdivided into five boroughs—IManhattan, Brooklyn, Bronx,Queens and Richmond. For each borough there is a separatepolice command with a headquarters office. In each boroughheadquarters there is a switchboard with tie-lines which per-mits two-way service between general police headquarters inManhattan and the other four boroughs. Associated with theswitchboards are a total of 136 teletypewriters. This flexiblesystem provides that messages may be sent to any

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