Digital data transmission tests on voice channels
By: 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.
Contributors: Law Enforcement Standards Laboratory.; National Institute of Law Enforcement and Criminal Justice.
Series: NBS special publication ; 480-19; NBS special publication ;; 480-19.
Publisher: NBS : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1977
Place of publication: Washington
Language: eng
Number of pages: 59
Subjects: Digital communications.; Mobile communication systems.; Radio frequency modulation.
Notes: Bibliography: p. 23.