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Thread: Mode C under a CTA
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Old 26th March 2007 | 16:13
  #11 (permalink)  
Radarspod
 
Joined: Oct 2004
Posts: 273
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From: South of UK
I dont think TCAS can work off of Mode A only, it requires Mode C replies to identify if the aircraft is actually a threat. The Mode S transponder on the TCAS equipped aircraft will interrogate non-TCAS equipped aircraft with Mode C only all-call.
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