ASA 105: Skill 4, Navigation tools and instruments

 

4.Describe the instruments required for prudent navigation in the local area including the following minimum requirements:

  • Steering compass and deviation table
  • Hand bearing compass and / or pelorus
  • Binoculars
  • Protractor or parallel rule
  • Depth sounder or leadline
  • Pencil, eraser, and notebook
  • Dividers
  • Watch or clock
  • Log / Knot meter
Add to the list:  
 
VHF radio.  Listening to VHF Channel 16 alerts navigators to emergencies, local hazards to navigation, and weather anomalies.  The USCG broadcasts such notices on VHF Channel 22 after announcing the alert on VHF Ch 16.

VHF WX channels provide current weather information and warnings needed by the prudent navigator.

Magnifying glass.  




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