Accession Number:

AD0608806

Title:

EVALUATION OF AUTOMATIC TERMINAL INFORMATION SERVICE APPLICATIONS.

Descriptive Note:

Final rept.,

Corporate Author:

NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J

Personal Author(s):

Report Date:

1964-09-01

Pagination or Media Count:

66.0

Abstract:

The purpose of this project was to evaluate applications of Automatic Terminal Information Service at several types of terminal areas using varied procedures and radio facilities to broadcast the information. Tests using automatic recording and broadcast equipment were conducted in the Van Nuys and San FranciscoOakland, California terminal areas and the Chicago, Illinois OHare Airport terminal area. The information was broadcast on the voice channels of VOR test facilities, navigational aids and a discrete frequency. Based on the results of the evaluation, it was concluded that, although interference problems may exist in some locations, the VOR test facilities, modified with a voice channel and increased output power was a satisfactory method of transmitting a combined arrival and departure Automatic Terminal Information Service message, resulting in reduced controller workload and radio frequency congestion. It was also concluded that although the use of a navigation facility voice channel was a satisfactory method of transmitting Automatic Terminal Information Service arrival messages, it precluded the use of such a facility for weather broadcast and groundair communications at some locations. It was also concluded that the sequential transmission of Automatic Terminal Information Service messages for two or more airports over the same voice channel was unsatisfactory. It was further concluded that the use of a discrete frequency was a satisfactory method of transmitting combined arrival and departure messages. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE