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Mobile communication systems

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This report presents the results of an investigation of the technical feasibility of establishing a nationwide digital network using commercial AM radio broadcast stations that can support both voice and data transmission. The proposed network, called AMBER (AM broadcast emergency relay), is meant to support emergency communications for civilian and military users when other communication facilities are not available. The authors describe AMBER assets and users; consider key network issues and technical considerations; present preliminary cost estimates; describe the AMBER data link; and discuss a large-scale, nationwide computer simulation that has been developed for AMBER at RAND, including the propagation and noise models incorporated into this simulation and the methodology, host computer, and components of the AMBER simulation. The report concludes with a study of the connectivity of an illustrative network.

Civil defense --- Emergency communication systems --- Radio relay systems --- Radio stations --- United States --- Armed Forces --- Communication systems.

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Nuclear power plants --- Wiretapping --- Communication systems. --- Security measures --- United States.

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Mobile communication systems --- Electrical & Computer Engineering --- Electrical Engineering --- Engineering & Applied Sciences

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Business --- Telecommunication systems --- Office practice --- Computer networks --- Data transmission systems --- Business enterprises --- Industrial location --- Communication systems --- Automation --- Location --- -Telecommunication systems --- -Computer networks --- -Business organizations --- Businesses --- Companies --- Enterprises --- Firms --- Organizations, Business --- Data communication systems --- Transmission of data --- Digital communications --- Electronic data processing --- Electronic systems --- Information theory --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Information networks --- Telecommunication --- Cyberinfrastructure --- Network computers --- Secretarial practice --- Office management --- Communications systems --- Systems, Communication --- Trade --- Economics --- Management --- Commerce --- Industrial management --- Distributed processing --- -Communication systems --- Office automation --- Electronic filing systems --- Electronic office machines --- Business location --- Corporations --- Industries --- Industries, Location of --- Location of industries --- Plant location --- Regional planning --- Space in economics --- Data processing --- Business - Communication systems --- Office practice - Automation --- Business enterprises - Location