DEVELOPMENTAL ATC RADAR BEACON SYSTEM GROUND STATION PERFORMANCE MONITOR.
SPERRY RAND CORP CLEARWATER FLA SPERRY MICROWAVE ELECTRONICS DIV
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The ATC Radar Beacon System Ground Station Performance Monitor is designed to provide alarm indications to maintenance and operating personnel should any of the various system parameters deviate beyond acceptable operational limits. In addition, the monitor provides a confidence check on the operation of the ground station decoder and azimuth presentation accuracy by providing a simulated reply code train through a test antenna located at a known azimuth position. The decoded simulated reply is observed on the operators PPI as a direct confidence check. The monitor is a dual monitor providing two complete monitor channels. Logic and switching circuitry is provided which may be utilized to switch monitors in the event of an alarm automatically switch systems between the active ATC transmitterreceiver and the standby transmitter-receiver in the event of an alarm in the active system or automatically take control of the standby system for periodic monitoring, etc. This report summarizes program activity through the acceptance test phase at the National Aviation Facilities Experimental Center. Observations of the system-monitor combination during the acceptance phase have provided the background for recommendations directed at reducing the monitor complexity and increasing the monitor effectiveness. Author