SUMMARY OF TRANSPONDER DATA JUNE 1977 THROUGH AUGUST 1978

The purpose of this effort was to determine the performance characteristics of transponders and digitized altimeters in an operational environment in general aviation aircraft. A transponder performance anlayzer (TPA) was developed at the National Aviation Facilities Experimental Center to measure performance parameters of transponders installed in aircraft. The TPA was installed in a bus for mobility and simulates an Air Traffic Control Beacon Interrogator (ATCBI) to facilitate measurement of 15 transponder parameters in 30 seconds. A standard gain horn is utilized to couple the signals between the TPA bus and the aircraft. Transponder data were collected at four different geographic locations resulting in more than 950 samples of general aviation transponders. Results show that 36 percent of the transponders met all measured parameters. It is concluded that this sample has established a significant data base. It is recommended that a study be conducted to determine the effects on the ATCRBS by individually varying each of the 15 parameters outside of their specification limits. (Author)

  • Corporate Authors:

    NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER

    ATLANTIC CITY, NJ  United States 

    Federal Aviation Administration

    800 Independence Avenue, SW
    Washington, DC  United States  20591
  • Authors:
    • Greenberg, M
  • Publication Date: 1979-8

Media Info

  • Pagination: 53 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00304786
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FAA-NA-79-23, FAA-RD-79-56
  • Files: NTIS, USDOT
  • Created Date: Jan 15 2002 12:00AM