Chartplotter

As appropriate to particular marine applications, chartplotters may also display data from other sensors, such as echolocators or sonar.

Chartplotters need to retrieve the Navigation Signal (Galileo, GPS, GLONASS, WAAS etc.)

Especially when the chartplotter generates three-dimensional displays, as used for fishing, considerable processing power and video memory may be required.

These other instruments include Sonar transducers, integration with 2 Way Radio communication devices and emergency locators (EPIRB).

A charter may use one or both types of ENC: A basic navigational display is common to all chartplotters.

Chartplotters may be programmable, and can be set to generate audible and visual alarms for conditions such as a potential collision, deviating significantly from the planned course, etc.

The principal function of a classic chartplotter is assisting a human pilot to plot and follow a course.