NCJ Number
57794
Date Published
1979
Length
48 pages
Annotation
DEFINITIONS AND DESCRIPTIONS ARE PROVIDED REGARDING THE SPECIFIC CHARACTERISTICS AND FUNCTIONAL CAPABILITIES OF THE 900 MHZ TRUNKED COMMUNICATIONS SYSTEMS USED BY LAW ENFORCEMENT AND OTHER PUBLIC SAFETY AGENCIES.
Abstract
IN AN EFFORT TO ENSURE THAT ALL PUBLIC SAFETY AGENCIES POSSESS THE MINIMUM TRUNK SYSTEM CAPABILITIES FOR PUBLIC SAFETY AND TO ASSIST VENDORS IN DEVELOPING COST ESTIMATES, THE ASSOCIATED PUBLIC-SAFETY COMMUNICATIONS OFFICER, INC., UNDER LEAA SPONSORSHIP, ESTABLISHED MINIMUM REQUIREMENTS FOR 900 MHZ TRUNKED SYSTEMS. THIS DOCUMENT NOT ONLY SPECIFIES FEATURES NECESSARY TO MEET MOBILE COMMUNICATIONS NEEDS OF LOCAL GOVERNMENT, BUT ALSO DESCRIBES HOW INDIVIDUAL ELEMENTS OF A DIGITALLY ADDRESSED, TRUNKED SYSTEM CONTRIBUTE TO AN ENTIRE COMMUNICATIONS OPERATION. AN OVERALL STATEMENT OF THE SYSTEM'S OPERATION COVERS PLANNING FOR AND IMPLEMENTING THE SYSTEM, AS WELL AS ITS DEMONSTRATION AND TESTING. DESCRIPTIONS ARE ALSO INCLUDED OF A SYSTEM'S USERS, WORKING CONCEPTS, OPERATION, AND VARIOUS ELEMENTS (I.E., BASE STATION TRANSMITTERS AND RECEIVERS, REMOTE RECEIVERS, BASE STATION ANTENNA SYSTEMS, ETC). OPTIONAL FEATURES THAT FIT THE NEEDS OF INDIVIDUAL AGENCIES ARE ALSO ADDRESSED, AS ARE SUCH CHARACTERISTICS AS CHANNEL ACCESS TIMES, AUTOMATED PRIORITY RECOGNITION, DATA SYSTEMS INTERFACE, SYSTEM USER INDIVIDUALITY, COMMAND/CONTROL FLEXIBILITY, SYSTEM GROWTH CAPABILITY, FREQUENCY UTILIZATION, RELIABILITY, MANAGEMENT, MAINTENANCE, AND TRAINING NEEDS. A GLOSSARY AND CHARTS ARE INCLUDED. (DAG)