Accession Number : AD0773768

Title :   DABS/ATCRBS Transponder Bench Testing Program.

Descriptive Note : Project rept.,

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s) : Samson,J. R. ; Welch,J. D. ; Becotte,E. R. ; Crocker,E. A. ; Schofield,H. D.

Report Date : 28 NOV 1973

Pagination or Media Count : 101

Abstract : The objective of the program was the determination of the effect on ATCRBS transponders of candidate modulation schemes in DABS uplink transmissions. Bench tests were conducted on twenty-two different transponder samples, including representative air carrier and general aviation transponders and a military transponder. In this report, individual test procedures are outlined, the reduced data are presented, and some conclusions regarding the selection of the DABS uplink waveforms based upon the data are given. The basis of these conclusions is a DABS design goal of generating the least interference to the existing ATCRBS system. In addition to performing tests whose purpose was the direct measurement of response of ATCRBS transponders to candidate DABS uplink waveforms, tests were also run to obtain other link-related characteristics, such as response to non-standard pulses. (Modified author abstract)

Descriptors :   *Air traffic control systems, *Transponders, Bench tests, Radar beacons, Data links, Data transmission systems

Subject Categories : Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE