Accession Number : AD0738182

Title :   Circuit Quality Monitor.

Descriptive Note : Semi-annual rept. no. 1, 26 May-26 Nov 71,

Corporate Author : ELECTRONIC COMMUNICATIONS INC ST PETERSBURG FLA RESEARCH AND ADVANCED DEVELOPMENT LAB

Personal Author(s) : Betts,William L.

Report Date : FEB 1972

Pagination or Media Count : 45

Abstract : The purpose of the program is to design, develop, and fabricate two advanced development models of the circuit quality monitor. The monitor is a device which automatically measures and displays the quality of voice bandwidth channels in the U.S. Army tactical toll system. Twelve channels are measured on a non-interfering basis once every fifteen minutes. Three degrees of quality are continuously displayed: usable for data, usable for voice but not high speed data, and unusable. Quality is measured in terms of amplitude spectrum, group delay spectrum, frequency offset, and message circuit noise. (Author)

Descriptors :   (*TELEPHONE SYSTEMS, MONITORS), AUTOMATIC, QUALITY CONTROL

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE