Chart Plotter and Radar
The Raymarine C80
is a daylight-readable display that
provides seamless charts and also can display the radar images
when radar is activated.
Operation is fairly intuitive and
covered in the manuals at the nav station.
Be careful not to become entirely
reliant on the plotter as it can fail or make errors.
Always confirm your position and the safety of your course using
other sources of information such as visual and compass fixes,
consulting the appropriate paper charts and the books provided
important point: Each sailor tends to fiddle with the settings
on the plotter as it is very customizable. Some like to
have a great deal of data displayed and that can be confusing
and distracting. In particular, the plotter will by
default display all depth contours, making the display a mess
(left). We are only really interested in knowing where
depths are less than 33 or 20 feet and seeing all the available
contours tends to make even deep areas worrisome.
It is simple to change the settings so
that only contours under 33 or 20 feet will display (right),
making it much more obvious where the actual hazards are