Accession Number : AD0728212

Title :   1585 MHz Glide Slope System.

Descriptive Note : Final rept. Sep 67-Nov 70,

Corporate Author : NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J

Personal Author(s) : Townsend,John E.

Report Date : AUG 1971

Pagination or Media Count : 33

Abstract : Test and evaluation of a glide slope system operating in the 1585 MHz frequency range were conducted at the National Avaition Facilities Experimental Center (NAFEC), Atlantic City, New Jersey. The system designed and built by Airborne Instruments Laboratory (AIL) uses a directional waveguide antenna that forms beams in space that are independent of ground reflections. Tests were performed at NAFEC and also at a problem site, Greater Pittsburgh Airport. Based on the data obtained from the tests performed, it was determined that a glide slope operating in the 1585 MHz frequency range is feasible, but certain improvements are necessary to the present system to make it operational. (Author)

Descriptors :   (*GLIDE PATH SYSTEMS, MICROWAVE FREQUENCY), SLOT ANTENNAS, ACCEPTABILITY

Subject Categories : Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE