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NCJRS Abstract

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NCJ Number: 47378 Find in a Library
Title: BODY-WORN FM (FREQUENCY MODULATION) TRANSMITTERS
Author(s): R N JONES; L F SAULSBERY; J L WORKMAN
Corporate Author: US Dept of Justice
LEAA
National Institute of Law Enforcement and Criminal Justice
United States of America
Project Director: H E TAGGART
Date Published: 1978
Page Count: 26
Sponsoring Agency: National Institute of Justice/
Rockville, MD 20849
US Dept of Justice

US Dept of Justice NIJ Pub
Washington, DC 20531
Publication Number: NILECJ-STD-0214.00
Sale Source: National Institute of Justice/
NCJRS paper reproduction
Box 6000, Dept F
Rockville, MD 20849
United States of America
Document: PDF
Language: English
Country: United States of America
Annotation: A STANDARD IS PRESENTED ESTABLISHING PERFORMANCE REQUIREMENTS AND METHODS OF TESTING ADEQUACY OF BODY-WORN FREQUENCY-MODULATED (FM) TRANSMITTERS, OF THREE WATTS OR LESS, USED BY LAW ENFORCEMENT AGENCIES.
Abstract: INFORMATION PERTAINS TO THREE CLASSIFICATIONS OF FM TRANSMITTERS; THOSE OPERATING IN THE 400 TO 512 MHZ BAND, IN THE 150 TO 174 MHZ BAND, AND IN THE 25 TO 50 MHZ BAND. DEFINITIONS OF TERMS USED IN THE EQUIPMENT STANDARDS ARE PRESENTED. REQUIREMENTS FOR THE FOLLOWING ARE GIVEN: TRANSMITTER PERFORMANCE, TRANSMITTER, BATTERY, RADIO FREQUENCY CARRIER CHARACTERISTICS, OUTPUT POWER, FREQUENCY STABILITY, AMPLITUDE MODULATION (AM) HUM AND NOISE LEVEL, TRANSMITTER EFFICIENCY, AUDIOFREQUENCY RESPONSE, FREQUENCY DEVIATION, MODULATION LIMITING, ELECTROMAGNETIC COMPATIBILITY CHARACTERISTICS, RADIATED SPURIOUS EMISSIONS, SIDEBAND SPECTRUM, AND BATTERY SERVICE LIFE. TEST CONDITIONS ARE SPECIFIED AND METHODS FOR TESTING EACH OF THE ABOVE REQUIREMENTS ARE DELINEATED. APPENDIXES INCLUDE REFERENCES, MINIMUM PERFORMANCE REQUIREMENTS FOR THE THREE CLASSIFICATIONS OF TRANSMITTERS, AND DIAGRAMS FOR A NUMBER OF TEST MEASUREMENTS.
Index Term(s): Evaluation; Hands free telecommunications equipment; Police equipment; Procedure manuals; Specifications; Standards
Note: LAW ENFORCEMENT STANDARDS PROGRAM
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=47378

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