PPRuNe Forums - View Single Post - Mode A code change on Approach (B747-400). Why?

21st December 2006 | 13:49

#6 (permalink)

punkalouver

Joined: Nov 2004

Posts: 1,324

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From: Here, there, and everywhere

I believe Mode S is a requirement for TCAS installment so the unit can communicate with another TCAS to coordinate RA's. A TCAS installation can see an aircraft with Mode C operating.

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