Radar Observer · Collision Avoidance — Rules
Proper use of radar in restricted visibility, as required by the Rules of the Road, includes:
- AUsing only the longest range scale at all times
- BLong-range scanning for early warning and radar plotting or equivalent systematic observation of detected objects✓ Correct
- CTurning the radar off to save power
- DRelying solely on visual lookout
Explanation
Rule 7(b) requires proper use of operational radar equipment, including long-range scanning to get early warning of risk of collision and radar plotting or equivalent systematic observation of detected objects.
Authority: 72 COLREGS Rule 7(b)
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