Accession Number : AD0737039

Title :   Investigate Incompatibility Between Ground and Airborne Measurements of VOR Space Modulation.

Descriptive Note : Final rept. Jul 70-Mar 71,

Corporate Author : NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ

Personal Author(s) : Naimo, Matthew, Jr

Report Date : FEB 1972

Pagination or Media Count : 62

Abstract : The report describes an investigation into the cause of incompatibility between ground and airborne measurements of VOR space modulation when using the latest flight inspection receiver, FA-4165:3A. The effort included a survey of the existing procedures and equipment used throughout the FAA, an evaluation of the ground measurement technique, and an evaluation of the airborne measurement technique. The result of the investigation identified problem areas with both the ground and airborne techniques. (Author)

Descriptors :   *RADIO NAVIGATION, TEST METHODS, VERY HIGH FREQUENCY, ERRORS, AZIMUTH, MODULATION, MEASUREMENT.

Subject Categories : Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE