ocr: RADAR ADAR STANDS FOR RAdio RDetection And Ranging. Ar rotating antenna sends out radio pulses in all directions. The pulses are reflected back from aircraft, collected by the TRANSPONDER- OUTGOING aerial, and interpreted by SIGNAL acomputer. Information on INCOMING. aircraft positions is then SIGNAL displayed for the air traffic controllers. There are several kinds of radar, but all use the same basic principle. RADAR A - ANTENNA CONTROL TOWER. Altimeter Weather Radar o - - - D : - SEE ALSO - - SpeedTrap
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