If an ATIS broadcast is interrupted for more than 12 hours, what happens to the identification code?

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Multiple Choice

If an ATIS broadcast is interrupted for more than 12 hours, what happens to the identification code?

Explanation:
An ATIS uses a repeating information cycle identified by a code. When the broadcast is interrupted for a long time, that cycle is restarted so pilots know a fresh set of information is in effect. Resetting the identification code prevents confusion from old data and ensures the resumed transmissions begin with the initial code of the new cycle. So the correct behavior is that the identification code starts over. It isn’t simply continuing from before, nor does it become permanently invalid; it’s reset and restarted when the service comes back.

An ATIS uses a repeating information cycle identified by a code. When the broadcast is interrupted for a long time, that cycle is restarted so pilots know a fresh set of information is in effect. Resetting the identification code prevents confusion from old data and ensures the resumed transmissions begin with the initial code of the new cycle. So the correct behavior is that the identification code starts over. It isn’t simply continuing from before, nor does it become permanently invalid; it’s reset and restarted when the service comes back.

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