Accession Number : AD0754921

Title :   Comparative Performance Evaluation of Common and Special Grade CONUS AUTOVON Trunks, Phase II.

Descriptive Note : Technical rept. Sep 70-Apr 71,

Corporate Author : ROME AIR DEVELOPMENT CENTER GRIFFISS AFB N Y

Personal Author(s) : Lemon,J. Russell

Report Date : DEC 1972

Pagination or Media Count : 135

Abstract : N SYSTEMS, DIGITAL SYSTEMS), VOICE COMMUNICATIONS, MODULATORS, DEMODULATORS, RELIABILITY(ELECTRONICS), AUTOMATIC, PHASE MODULATION, AMPLITUDE MODULATION, PERFORMANCE(ENGINEERING)MODEMS, AUTOVON(AUTOMATIC VOICE NETWORK), PULSE COMMUNICATIONPhase II of the AUTOVON Evaluation was a quantitative evaluation of Special Grade and Common Grade AUTOVON Trunks conducted at the RADC Digital Communications Experimental Facility (DICEF) during the period of September 1970 to April 1971. The results provide facual data on the digital and analog performance of these circuits. Phase II of the AUTOVON Evaluation compared the performance of Special Grade Trunks, Common Grade Trunks, and Common Grade Trunks with a fixed corrective equalization. These trunks were evaluated using phase modulated and amplitude modulated type MODEM's. The MODEM's were operated at data rates of 2400, 4800, and 9600 bits per second. (Author)

Descriptors :   (*DATA TRANSMISSION SYSTEMS, DIGITAL SYSTEMS), VOICE COMMUNICATIONS, MODULATORS, DEMODULATORS, RELIABILITY(ELECTRONICS), AUTOMATIC, PHASE MODULATION, AMPLITUDE MODULATION, PERFORMANCE(ENGINEERING)

Subject Categories : Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE