The Weekend Navigator Part II Copyright 2008 Coast Guard Auxiliary Association, Inc.

Chapter 17: Using Radio in Navigation

In an Emergency Channel 16-International distress, safety, and calling –Monitored by all USCG boats and stations –Used to initiate calls for regular traffic DSC –Includes the worldwide system called Global Marine Distress and Safety System (GMDSS) –Provides a unique “address” to your radio with identity and GPS coordinates

In an Emergency Routine calls –Initiated on Channel 16 –Switch to Channels 68,69,71,72, or 87A Safety and distress calls –Mayday – immediate peril and risk to human life –Pan-Pan – conditions of emergency or potential emergency –Securite – announce presence of navigational risks

Weather Radio Used for receiving NOAA weather forecasts Can received transmissions up to 40 miles from the station Reports are updated hourly

Fixed versus Handheld VHF You need a fixed mount VHF for your boat –Will reach up to 20 miles Handheld units do not have as much power –May only reach up to a few miles Select the highest gain antenna that is practical for your boat