题目内容
VORenables aircraft to determine their____________ and stay ________________by receiving radio signals transmitted from a network of ground radio beacons.
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The signals the a VOR station sends out are a ______________ and a highly _______________ secondary signal.
The ______________of an aircraft to the ground radio station can be determined by comparing the _____________of the secondary signal to the master.
The VOR display in the cockpit includes a rotating course card, the OBS, the CDI, and the _________________________.
The VOR station identifier is usually a three letter string in ____________________.
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