It is installed as an anti-aircraft search radar on the Maritime Self-Defense Force's escort ship, and it will be the first model originally developed by Japan after World War II for this purpose.

For this reason, the pulse compression technology that was originally planned to be introduced from AN/SPS-40 will be researched independently.

The Maritime Self-Defense Force already had OPS-1 and OPS-2 as a domestic anti-aircraft search radar, but since these were de facto pirated versions based on the American-made AN/SPS-6.

OPS-11B is an amplifier added to increase the output, and OPS-11C is solid-state based on OPS-11B and movement target indication (MTI).

[3] Since it has a longer wavelength and better reachability than the new OPS-14 that uses the L band, it will be installed on the Tartar System-equipped missile destroyer even after the introduction of the OPS-14, complementing the 3D radar.