NCJ Number
15612
Date Published
1974
Length
37 pages
Annotation
ESTABLISHES MINIMUM PERFORMANCE REQUIREMENTS FOR USE OF THIS EQUIPMENT BY LAW ENFORCEMENT AGENCIES AND DETAILS LABORATORY TEST METHODS.
Abstract
SIXTEEN PERFORMANCE CHARACTERISTICS GROUPED UNDER THE GENERAL HEADINGS OF RADIO FREQUENCY CARRIER, AUDIO FREQUENCY MODULATION, ELECTROMAGNETIC COMPATIBILITY, AND ENVIRONMENTAL CHARACTERISTICS ARE DEFINED FOR THREE TYPES OF TRANSMITTERS WHICH ARE IDENTIFIED BY THEIR MEGAHERTZ BAND OPERATING FREQUENCIES (400-512, 150-174, AND 25-50). TEST METHODS INVOLVE DETERMINING A VALUE FOR EACH OF THE CITED PERFORMANCE REQUIREMENTS. WHILE THE STANDARD SHOULD BE OF VALUABLE ASSISTANCE IN THE SELECTION AND PROCUREMENT OF PERSONAL/PORTABLE FM TRANSMITTERS, THE NECESSARILY TECHNICAL NATURE OF THE STANDARD AND ITS SPECIAL FOCUS AS A PROCUREMENT AID MAKE IT OF LIMITED USE TO THOSE WHO SEEK GENERAL INFORMATION ON PERSONAL/ PORTABLE FM TRANSMITTERS. APPENDIXES CONTAIN A BIBLIOGRAPHY AND TABULATED MINIMUM PERFORMANCE DATA FOR ALL THREE TRANSMITTER TYPES. IT IS NOTED THAT THE PERFORMANCE REQUIREMENTS ARE IN AGREEMENT WITH THOSE GIVEN IN THE RULES AND REGULATIONS PUBLISHED BY THE FEDERAL COMMUNICATIONS COMMISSION. (SNI ABSTRACT)