Doppler Radar overview

Doppler Radar technology makes it easier to track moving objects with ground speed exceeding 3 knots.

Doppler Overview

The Doppler function highlights objects on the Radar display that are moving towards or away from the vessel (e.g. other vessels, but not land or buoys, for example). Stationary targets will not be highlighted.

Doppler Radar technology is particularly beneficial in a marine environment, where poor weather conditions and visibility can make object tracking challenging. With the integration of Doppler information on the Radar display, the process of matching on-screen Radar returns with real-world objects becomes a much simpler task.

Doppler Radar works by transmitting a microwave signal which is then reflected off a moving object at a distance. By analyzing how the object's motion has altered the frequency of the returned signal, the Doppler Radar can interpret the variation to provide highly accurate measurements of an object’s direction of travel, relative to the Radar scanner.