It was originally developed for a class of ships known as Patrol Frigates, but it was also installed on numerous Cruisers, Destroyers, and Minesweepers.

It is an I band radar and its antenna consists of two waveguide slotted arrays mounted back-to-back.

An operator might want to do this to avoid detection by an enemy receiver which lies within a known or suspected location.

The installation of Field Change 13 disabled the antenna's circular polarisation feature.

Field Change 13 was necessary to address reliability issues associated with the replacement version of the waveguide switch used for polarisation selection.