Chapter 6: Navigation & Communication Equipment
Before using these systems for the first time, read and understand the instruction manuals and observe the following:
Compass
• Compass accuracy can be affected by many factors.
• Have a qualified technician calibrate your compass. Make sure the technician gives you a
deviation card which shows the corrections to apply in navigational calculations.
• Keep a copy of the deviation card at each helm.
Depth Finder
• DO NOT use the depth finder as a navigational aid to prevent collision, grounding, boat
damage or personal injury.
• When the boat is moving, submerged objects will not be seen until they are already under
the boat.
• Bottom depths may change too quickly to allow time for the boat to react.
• If you suspect shallow water or submerged objects, run the boat at very slow speeds.
20
NOTICE
!
WARNING!