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A '''Chartplotter''' is a device used in marine [[navigation]] that integrates [[GPS]] data with an [[Electronic navigational chart| electronic navigational chart (ENC)]]. The chartplotter displays the ENC along with the position, heading and speed of the ship, and may display additional information from [[radar]], [[Automatic Identification System|automatic information systems (AIS)]] or other sensors. As appropriate to particular marine applications, chartplotters may also display data from other sensors, such as echolocators/[[sonar]].
==Technology==
Electronic chartplotters always require a computer, or sometimes multiple computers. It is a feature of the implementation, and sometimes of regulatory requirements, whether the computer is a general-purpose one that can run other applications, or must be dedicated to the chartplotter application. Especially when the chartplotter generates three-dimensional displays, as used for fishing, considerable processing power and video memory can be needed.
Recreational marine chartplotters are used for displaying chart data. Normally a chartplotter is also fed GPS input to compute an accurate position of the vessel. These marine electronics devices are continuously evolving with larger screens, increased processing power, and multi-function capabilities that allow them to display data from a connected radar, [[fish finder]], weather receiver, or be coupled to another marine chartplotter via a marine network.
== Electronic Charts ==
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