The following questions are based on Chart 12221TR, Chesapeake Bay Entrance, and the supporting publications. Your height of eye is 25 feet (7.6 meters) Gyro error is 3°E Variation is 10°W "Per standard magnetic compass" is abbreviated "psc" “Per gyrocompass” is abbreviated “pgc” DEVIATION TABLE Magnetic Heading Deviation 000° 0° 030° 1°W 060° 2°W 090° 4°W 120° 2°W 150° 1°W 180° 1°E 210° 2°E 240° 3°E 270° 3°E 300° 2°E 330° 1°E On which frequency does the National Weather Service provide 24 hour weather broadcasts to vessels transiting the Chesapeake Bay Bridge Tunnel area?

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