Accession Number : AD0676532

Title :   BEACON RANGE ALTITUDE MONITOR SYSTEM (AIRBORNE).

Descriptive Note : Final rept.,

Corporate Author : AIRBORNE INSTRUMENTS LAB DEER PARK N Y

Personal Author(s) : Hartman,Lennart

Report Date : AUG 1968

Pagination or Media Count : 32

Abstract : The development of a feasibility model of an airborne range/altitude monitor system and the results of flight tests of the system are described. The system interrogates ATCRBS transponder-equipped aircraft within the area of interest, using a fixed beam alternating between Mode A (identification) and Mode C (altitude). The replies are processed, and those within preselected altitude limits are displayed, showing the range and identification of the nearest two aircraft. The area of coverage is antenna-limited to approximately plus or minus 100 degrees in azimuth and plus or minus 20 degrees in elevation. Range is design-limited to 60 nmi. Height layers up to plus or minus 2500 feet may be monitored, with increments of 500 feet. (Author)

Descriptors :   (*AIR TRAFFIC CONTROL SYSTEMS, AIRBORNE), DIPOLE ANTENNAS, DESIGN, FEASIBILITY STUDIES, MONITORS, FLIGHT TESTING, SPECIFICATIONS, TRANSMITTER RECEIVERS, ANTENNA RADIATION PATTERNS, OPERATION, TELEMETER SYSTEMS, RANGE(DISTANCE), ALTITUDE, DISPLAY SYSTEMS, AZIMUTH

Subject Categories : Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE