Accession Number : AD0711473

Title :   NAS EN ROUTE STAGE A, MODEL 1b, TEST AND EVALUATION OF THE PRE-PRODUCTION EQUIPMENT AN/FYQ-47.

Descriptive Note : Final rept. Feb 69-Apr 70

Corporate Author : NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J

Personal Author(s) : Burkard,Karl H.

Report Date : SEP 1970

Pagination or Media Count : 56

Abstract : The AN/FYQ-47 (Production Common Digitizer) (PCD) is an integrated circuit simplex model designed to derive aircraft positional information from FAA/USAF primary and secondary radar and beacon inputs. Beacon code replies for Mode 3/A (identify), Mode 2 (military identity), and Mode C (altitude) are processed and reported in a digital message with associated positional information. At joint-use sites, the PCD also performs functions related to the USAF semi-automatic height finder process and handles information received from USAF gap filler radars. The major non-military inputs to the PCD are as follows: radar and beacon videos, radar and beacon pre-triggers, and reference and azimuth change pulses (ACP's) generated at the radar antenna. (Author)

Descriptors :   (*DATA PROCESSING, *AIR TRAFFIC CONTROL SYSTEMS), DIGITAL SYSTEMS, INTEGRATED CIRCUITS, POSITION FINDING, RADAR SIGNALS, AIRCRAFT INTERCEPT CONTROL SYSTEMS

Subject Categories : Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE