EVALUATION OF THOMSON/CSF FIVE-BAY VOR ANTENNA

A stacked five-bay VOR antenna was evaluated at the National Aviation Facilities Experimental Center (NAFEC). The antenna was designed for use with a conventional very high frequency omnidirectional radio range (VOR) system to reduce multipath effects by diminishing ground reflections. Tests included airborne and ground measurements to assure operational compatibility of the antenna with FAA transmitting equipment. Measurements were made on the complete array, bays, and antenna elements. Test results indicated that the bearing error was marginal and the large sidelobes caused multipath reflection from nearby obstacles. A computer program used for the analysis of vertical plane radiation patterns in stacked arrays is included. (Author)

• Corporate Authors:

  National Aviation Facilities Experimental Center

  Federal Aviation Administration
  Atlantic City, NJ  United States  08405
• Authors:
  • Dong, J G
• Publication Date: 1977-10

Media Info

• Pagination: 77 p.

Subject/Index Terms

• TRT Terms: Air traffic control; Antennas; Area; Information processing; Multipath transmission; Omnidirectional antennas; Phased arrays; Radiation patterns; Reflection; Vehicle range; Very high frequency; Very high frequency omnidirectional radio range
• Uncontrolled Terms: Antenna radiation patterns
• Old TRIS Terms: Area coverage; Nulls amplitude; Range distance; Stacking; Visual omni range; Vor antennas
• Subject Areas: Aviation; Operations and Traffic Management;

Filing Info

• Accession Number: 00168957
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-RD-77-82 Final Rpt., FAA-NA-77-7
• Files: NTIS, TRIS, USDOT
• Created Date: Jan 30 1978 12:00AM