U.S. flag

An official website of the United States government, Department of Justice.

NCJRS Virtual Library

The Virtual Library houses over 235,000 criminal justice resources, including all known OJP works.
Click here to search the NCJRS Virtual Library

Voice Security: Picking Your Level of Protection (From Proceedings, 1988 Carnahan Conference on Security Technology: Electronic Crime Countermeasures, P 69-72, 1988, R. William De Vore, ed., -- See NCJ-117849)

NCJ Number
117863
Author(s)
E T Smith
Date Published
1988
Length
4 pages
Annotation
This document addresses the problem of securing radio communications against eavesdropping.
Abstract
The only way to effectively secure radio communications is to encrypt the voice message from the mouth of one officer to the ears of others. This requires the use of voice scramblers and the first step toward procurement is to determine the requirements of the particular organization. Important criteria for considering a voice security system include security level, system transparency, voice quality and recognition, and ease of operation. Small police departments need a scrambler that uses a simple encoding method to deter casual listeners operating a scanner. In urban areas, digital time division encryption achieves the purpose of securing voice transmissions to a point where they are virtually unbreakable in tactical real-time.