ARTHUR (an acronym for "artillery hunting radar") is a counter-battery radar system originally developed jointly for and in close co-operation with the Norwegian and Swedish armed forces by Ericsson Microwave Systems in both Sweden and Norway.

It is a mobile, passive electronically scanned array C-band radar for the purpose of enemy field artillery acquisition and was developed for the primary role as the core element of a brigade or division level counter battery sensor system.

The vehicle carrying the radar was originally a Bandvagn 206 developed and produced by Hägglund & Söner, but is now more often delivered on trucks with ISO fasteners.

The upgraded ARTHUR Mod B met the British Army's MAMBA requirement for locating guns, mortars or rockets.

Depending on national tactics, techniques, procedures, the commander's orders and the situation, this information may be used to alert any troops in the impact area and engage the hostile batteries with counter-battery fire.

The ARTHUR can determine whether the artillery piece is of artillery-type, rocket-type or mortar-type based upon the curve of the trajectory, the munition's speed, and its range.

The consequences of this detection are likely to be attack by artillery fire or aircraft (including anti-radiation missiles) or ECM.