900 MHz trunked communications system functional requirements development : the identification of the specific operational capabilities that should be incorporated in a demonstration trunked communication system for law enforcement agencies / by the Associated Public-Safety Communications Officers, Inc.
900 MHz trunked communications system functional requirements development : the identification of the specific operational capabilities that should be incorporated in a demonstration trunked communication system for law enforcement agencies / by the Associated Public-Safety Communications Officers, Inc.
Dept. of Justice, Law Enforcement Assistance Administration, National Criminal Justice Information and Statistics Service : for sale by the Supt. of Docs., U.S. Govt. Print. Off.