Whilst sailing through a narrow coastal passage, an ECDIS alarm indicates that number 1 GPS HDOP value is outside set limits. What actions should be taken on the bridge?

15 Nov '20, 20:30

Nov. 15, 2020, 8:30 p.m.
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Answer:

The receiver should be checked and the duty officer should confirm vessel's position by other means.

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15 Nov '20, 20:32

Nov. 15, 2020, 8:32 p.m.
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