Accession Number : AD0782353

Title :   Letter Report on a Straw-Man Modification of an ATC Transponder for Discrete Address Use.

Descriptive Note : Interim rept. Jul-Dec 72,

Corporate Author : TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MASS

Personal Author(s) : Rudis,R. P.

Report Date : MAY 1974

Pagination or Media Count : 33

Abstract : An experimental evaluation has been made of an RCA AVQ-65 airtraffic control transponder modified, in Mode D, so as to reply if and only if interrogated with its own preset reply code. Successful operation of the modified transponder was verified, and some key circuit limitations were explored and improved upon. (Author)

Descriptors :   *Air traffic control systems, *Interrogator transmitters, *Transponders, Coding, Digital systems, Logic circuits, Modification, Wiring diagrams

Subject Categories : Air Navigation and Guidance
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE