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Thread: A320 Antennas Location
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Old 26th January 2015 | 11:58
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NSEU
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Joined: Feb 2004
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From: Australia
A320 series walkaround

I see the A320 has two ATC antennas on the roof as well.

Generally, to interact with TCAS, each ATC system needs an upper and lower antenna. The A320 evidently has 4 ATC antennas (two for each ATC system).
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