A.transmitter
B.antenna system
C.indicator
D.modulator
您可能感興趣的試卷
你可能感興趣的試題
A.persistence
B.pulse repetition rate
C.pulse length
D.resolution
A.Relative
B.TRUE
C.Compass
D.Magnetic
A.magnetism from the earth's magnetic field
B.misalignment of the compass
C.magnetism within the vessel
D.a dirty compass housing
A.deviation minus variation
B.variation plus compass course
C.combined variation and deviation
D.difference between true and magnetic heading
A.vessel's geographic position
B.vessel's heading
C.earth's magnetic field
D.influence of the magnetic materials of the vessel
最新試題
A Doppler speed log indicates speed over ground（）.
Compass error is equal to the（）.
A tall object with a light on or near the shore，to act as a guide or warning to mariners is called（）.
（）the canal transit，the radar was operating.
A deadhead is a(n)（）.
Compass deviation is caused by（）.
An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes?（）.
Error may be introduced into a magnetic compass by（）.
A radar contact will remain stationary on a relative motion radar display only when it is（）.
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.