what is atc? the atc transponder system is sometimes called secondary surveillance radar (ssr). it...
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What is ATC?
The ATC Transponder system is sometimes called Secondary Surveillance Radar (SSR).
It is a secondary radar system designed to automatically give Air Traffic Control (ATC) information.
ATC Information The information obtainable from the system is: -
• Range & Bearing
• Identity
• Altitude
SSR Aerial
PSR Aerial
ATC System • Mode A – Identity
• Mode C – Altitude reporting
ATC Block Diagram
OPERATION
ATC Aerials
ATC utilises an L-band aerial mounted on the bottom of the aircraft.
Received centre frequency is 1030 MHz.
Transmitted centre frequency is 1090 MHz.
Transmits an omni-directional vertically polarised signal.
ATC Testing
- Check the manual- Remove the Arial- Co-Axial TDR Test - Test the system (ATC-600A)
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