Catalog Record: Digital data transmission tests on voice channels | HathiTrust Digital Library

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Digital data transmission tests on voice channels /
by Urban Sciences, inc. ; prepared by Law Enforcement Standards Laboratory, Center for Consumer Product Technology, National Bureau of Standards ; prepared for National Institute of Law Enforcement and Criminal Justice, Law Enforcement Assistance Administration, U.S. Department of Justice.

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Corporate Author: Urban Sciences, Inc.
Language(s): English
Published: Washington, D.C. : Dept. of Commerce, National Bureau of Standards : 1977.
Subjects: Data transmission systems.
Police communication systems.
Physical Description: v, 59 p. : ill. ; 26 cm.
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