A.transmitter
B.antenna system
C.indicator
D.modulator
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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
（）20 targets can be tracked at one time．When maximum tracking capacity is reached，no further acquisitions are possible.
What will NOT induce errors into a doppler sonar log?（）
The number of pulses of energy transmitted per second is call the（）.
A radar range to a small，charted object such as a light will provide a line of position in which form?（）.
Compass error is equal to the（）.
An ECDIS is required to display which information?（）
A radar display which is oriented，so that north is always at the top of the screen，is called a(n)（）.
A FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines（）.
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.
An electronic depth finder operates on the principle that（）.