ADS-B Out and Mode A/C XPDR

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12th April 2016 | 13:28

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Fly4Business

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From: Greater London Area

ADS-B Out and Mode A/C XPDR

We were just unsure in a discussion: if you are flying with Mode-S Transponder 1090ES and ADS-B Out is wired and hot, will Mode A/C XPDR in the vicinity respond with firing?

12th April 2016 | 13:45

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Dont Hang Up

Joined: Mar 2008

Posts: 423

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From: Malvern, UK

Your ADS-B Out will have no effect on Mode A/C transponders in the vicinity.

Mode A/C transponders in the vicinity will reply only to the Mode C whisper/shout interrogations from your TCAS unit.