Maritime Self-Defense Force's self-defense ship as an anti-aircraft search radar.[1]
Variations include OPS-14B and OPS-14C.
The model numbers of the Maritime Self-Defense Force's electronic devices, including this machine, are generally based on the naming rules for military electronic devices of the U.S. military. It is for radar mounted on surface vessels, for detection / distance direction measurement / search.[1]
. The maximum detection distance when targeting PV-2 was 50 nmi (93 km) for OPS-2. This machine was developed through the OPS-1 and OPS-2 family.
This unit was an all-transistor antenna, and uses a typical cosecant squared characteristic molded beam antenna as an antenna. A frequency agility method was also introduced to improve ECCM. Installation started in 1967 and the first example of its adoption was the Chikugo-class destroyer. From 1973, it has been switched to the OPS-14B, which has enhanced clutter suppression performance by introducing movement target detection (MTI) technology. In addition, the magnetron was used as the oscillator in the past, but in the OPS-14C, it was changed to the klystron with the introduction of pulse compression technology, and the ECCM capability was strengthened.
Following the
helicopter destroyers and the guided-missile destroyers. Both performance and reliability were satisfactory. However, compared to the OPS-11 installed on the conventional destroyers, the maximum detection distance was only about half, and there was doubt about the reliability of the anti-aircraft warning ability when acting alone.[2] For this reason, the destroyers after 1985 was updated to the new 3D radar OPS-24.[3] However, since then, it has been installed on destroyer escorts and other auxiliary ships. Also, the Japan Coast Guard built a two-helicopter patrol boat Shikishima for escorting plutonium carriers with a budget of 1990, but this ship was also used to guard against terrorist attacks using helicopters.[1]
^History of domestic escort ship construction (14th) Third Defense (Part 2) Escort ship construction record, district corps reorganization, Chikugo type 4 escort corps group system, Tachikaze type (part 1), World Ships. Vol. 792. Japan: Gaijinsha. 2014. pp. 141–149.
^History of Domestic Escort Ship Construction (25th), Ships of the World. Vol. 810. Japan: Gaijinsha. January 2015. pp. 194–201.
OPS-14 aboard JS Amagiri
OPS-14B aboard JS Isoyuki
OPS-14C aboard JS Ōsumi
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