File:Bell telephone magazine (1922) (14570008007).jpg

Identifier: belltelephonemag11amerrich (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:
ing station at Houlton,Me. All of the short-wave radio facilities are at stations inNew Jersey. At Lawrenceville are the transmitters for Eng-land, South America, and Bermuda, while at Netcong are thecorresponding receivers. For ships at sea there is a trans-mitting station at Ocean Gate and a receiving station at ForkedRiver. A radio telephone circuit actually consists of two one-waychannels, the voices of the two subscribers reaching their desti-nations by separate routes and on different wave lengths.These two sides of a complete circuit are merged in the ControlRoom, on the twenty-fourth floor of the Long Distance Build-ing. An important piece of apparatus in this room is the privacydevice. This scrambles the speech before it leaves thecentral room, to make the conversation unintelligible to anyunauthorized persons who may chance to pick up the radiosignals, and unscrambles a similarly garbled voice fromacross the ocean. Another radio control room in the Long Distance Building 316
Text Appearing After Image:
U o W H a) g (5

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