OPS-20
{{Short description|Anti-water search radar by Japan Radio}}
{{Infobox radar|name=OPS-20|image=File:OPS-20 on board DD-109.jpg|caption=OPS-20 aboard JS Ariake|country=Japan|introdate=1969|frequency=X band|manufacturer=Japan Radio|type=2D|azimuth=Unlimited}}
OPS-20 is a two-dimensional radar manufactured by Japan Radio. It is compatible with the Global Maritime Distress and Safety System (GMDSS) and installed as an anti-water search radar on the Maritime Self-Defense Force's escort ship.{{Cite book|title=Self-Defense Force Equipment Yearbook 2006-2007|date=15 July 2006|publisher=Chaoyun News Agency|isbn=4-7509-1027-9|pages=367}} Variations include OPS-20B, OPS-20C and OPS-20E.
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.
Overview
In addition, the OPS-20C is adopted by the Hyūga-class helicopter destroyer and Akizuki-class destroyer has been developed as an anti-water search radar, and is composed of two antennas, a main and a sub. Also, by changing the radar wave used from pulse wave to unmodulated continuous wave (CW), the discoverability is reduced.{{Cite book|last=Nagai|first=Arahito|title=Current Ship-based Radar of the Maritime Self-Defense Force, Ships of the World|publisher=Gaijinsha|date=March 1991|volume=433|location=Japan|pages=84–89}}
= On board ships =
- Abukuma-class destroyer escort (JS Tone)
- Kongo-class destroyer
- Murasame-class destroyer
- Takanami-class destroyer
- Atago-class destroyer
- Hyūga-class helicopter destroyer
- Akizuki-class destroyer
- Izumo-class helicopter destroyer
- Ōsumi-class tank landing ship
- Uraga-class mine countermeasure vessel
- Hayabusa-class patrol boat
- JS Kashima
- JS Chihaya
- Towada-class replenishment ship
- Mashū-class replenishment ship
- JS Nichinan
- JS Tenryū
Gallery
File:Mast of JS Atago(DDG-177) Radars.jpg|OPS-20 aboard JS Ataga
File:OPS-20B Radar on board JS Kirisame(DD-104) at Port of Osaka May 15, 2016.JPG|OPS-20B aboard JS Kirisame
File:OPS-20C radars on JS DD115 Akizuki at Nagoya (2013 August 4th).jpg|OPS-20C abaoard JS Akizuki
File:OPS-20C on JDS DD-116 Teruzuki at Harumi-pier,Tokyo (2013 Dec 1) 26.jpg|OPS-20C aboard JS Teruzuki
Citations
References
- Norman Friedman (2006). [https://books.google.com/books/about/The_Naval_Institute_Guide_to_World_Naval.html?hl=ja&id=4S3h8j_NEmkC The Naval Institute Guide to World Naval Weapon Systems]. Naval Institute Press. ISBN 9781557502629
- Self-Defense Force Equipment Yearbook 2006-2007. Asaun News Agency. ISBN 4-7509-1027-9