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Thread: Xpndr only Vs. TaRa on the ground
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Old 30th Nov 2007, 06:44
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IRRenewal

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From B738 FCOM:

RAs are inhibited below approximately 1,000 feet radio altitude. Below 1,000 feet when the TA/RA mode is selected on the transponder panel, TA only mode is enabled automatically and the TCAS message TA ONLY displays on the ND.
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