Small Boat Navigation
Electronic Navigation Systems
- GPS (Global Positioning System) is based on satellite transmitters. It is
accurate to 10 metres and available around the world as well
as at different elevations. GPS is vulnerable to jamming and other electronic
interference, so a backup navigational system is recommended.
- Differential GPS (DGPS) will correct for errors
where it is installed on shore. This system is less attractive since the improvement
in GPS and WAAS, the newest satellite system.
- Loran C, an obsolete system based on land-based transmitters was retired in 2010.
- E-charts combine GPS equipment with a computer
or special displays for the latest in electronic navigation. ECDIS (Electronic
Chart Display Information Systems) is another development to help navigator's
find their way. It combines special electronic charts with onboard navigation
systems, such as GPS, autopilots and computers.
- Chart Plotting is a boating skill that will
always be useful.
Links
This site:
Other sites:
