| 1. | The transponder emits a signal when it is interrogated by the secondary radar.
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| 2. | The FAA also established a secondary radar system ( ATCBI-5 ) on Saint Paul Island.
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| 3. | Air traffic control uses Primary and Secondary Radars.
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| 4. | Both primary and secondary radar are installed.
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| 5. | The information can be received by air traffic control ground stations as a replacement for secondary radar.
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| 6. | The ships will also receive an IFF upgrade, to the EADS MSSR 2000 I secondary radar system.
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| 7. | And a secondary radar could simply be disconnected . talk ) 23 : 08, 12 March 2014 ( UTC)
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| 8. | The radar unit is capable of identifying aircraft using secondary radar up to a radius and primary radar coverage to.
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| 9. | The curving lower reflector is the primary radar, while the flat antenna on top is the secondary radar . ]]
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| 10. | Secondary radar emits pulses and listens for special answer of digital data emitted by an Aircraft Transponder as an answer.
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