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	{{more citations needed\|date=April ~~2014~~}}{{Infobox Radar		{{more citations needed\|date=April 2022}}{{Infobox Radar
	\| name = 3-dimensional central acquisition radar (3D-CAR)		\| name = 3-dimensional central acquisition radar (3D-CAR)
	\| image = File:Rohini_radar.jpg		\| image = File:Rohini_radar.jpg
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	==Details==		==Details==
	Central acquisition radar (CAR) is a medium-range high-resolution 3D surveillance radar. Central acquisition radar was designed by [[LRDE]], a [[DRDO]] laboratory, and is produced by a joint venture between [[Bharat Electronics Limited\|BEL]], [[Larsen & Toubro]], Astra Microwave and [http://www.entec.in/ Entec]. The radar employs a planar array antenna and provides simultaneous multi-beam coverage. It can handle 150 targets in [[track while scan]] mode and has a range of ~~170~~ km and up to 18 km altitude.<!--Getting very repetitive-->		Central acquisition radar (CAR) is a medium-range high-resolution 3D surveillance radar. Central acquisition radar was designed by [[LRDE]], a [[DRDO]] laboratory, and is produced by a joint venture between [[Bharat Electronics Limited\|BEL]], [[Larsen & Toubro]], Astra Microwave and [http://www.entec.in/ Entec]. The radar employs a planar array antenna and provides simultaneous multi-beam coverage. It can handle 150 targets in [[track while scan]] mode and has a range of more than 200 km and up to 18 km altitude.<!--Getting very repetitive-->

	==Features==		==Features==
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	*Medium-range 3D surveillance		*Medium-range 3D surveillance
	*[[S band]] operation		*[[S band]] operation
	*Surveillance range more than ~~180~~ km		*Surveillance range more than 200 km
	*Covers elevation of 18 km in height		*Covers elevation of 18 km in height
	*High-altitude deployability		*High-altitude deployability

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{{more citations needed|date=April 2014}}{{Infobox Radar
| name = 3-dimensional central acquisition radar (3D-CAR)
| image = File:Rohini_radar.jpg
| caption = Rohini radar of IAF
| country = [[India]]
| designer = [[Defence Research and Development Organisation]] <br/>[[Electronics and Radar Development Establishment]]
| manufacturer = [[Bharat Electronics Limited]]
| introdate =
| number =
| type = [[Primary surveillance radar]]
| frequency = [[S band]]
| range = greater than {{convert|200|km|mi|abbr=on}} <ref name="inpr">{{cite web |url=http://indiannavy.nic.in/press-release/rm-commission-ins-kamorta |title=Raksha Mantri to commission 'INS Kamorta'|date=20 Aug 2014 |work=[[Indian Navy]]}}</ref>
| altitude = {{convert|18|km|mi}}
| diameter = 
| azimuth = 
| elevation = 
| precision = 
| power =
| other names = ROHINI <br/>REVATHI
}}

The '''central acquisition radar (3D-CAR)''' is a [[3D radar]] developed by [[DRDO]] for use with [[Akash (missile)|Akash]] [[Surface-to-air missile|SAM]] capable of tracking 150 targets.

==Details==
Central acquisition radar (CAR) is a medium-range high-resolution 3D surveillance radar. Central acquisition radar was designed by [[LRDE]], a [[DRDO]] laboratory, and is produced by a joint venture between [[Bharat Electronics Limited|BEL]], [[Larsen & Toubro]], Astra Microwave and [http://www.entec.in/ Entec]. The radar employs a planar array antenna and provides simultaneous multi-beam coverage. It can handle 150 targets in [[track while scan]] mode and has a range of 170 km and up to 18 km altitude.

==Features==
These features relate to the 3D CAR radar. Specifications for the Rohini, 3D TCR and Revathi are available in the links below.

*Medium-range 3D surveillance
*[[S band]] operation
*Surveillance range more than 180 km
*Covers elevation of 18 km in height
*High-altitude deployability
*Deployment in less than 20 minutes
*150 Targets in [[Track while scan|TWS]]
*Array of [[Electronic counter-countermeasures|ECCM]] features
*Integrated [[Identification friend or foe|IFF]]
*Capable of detecting low-altitude targets, and also supersonic aircraft flying at over Mach 3 speed
*Frequency agility and jammer analysis

== Variants ==
[[DRDO]] has further developed its into three variants which are:
;Rohini
The Rohini radar is mounted on a modified TATRA heavy truck and supported by a mobile auxiliary power unit. The TATRA is license manufactured by [[BEML|Bharat Earth Movers Limited (BEML)]].<ref>{{cite news | url = https://www.deagel.com/Tactical%20Vehicles/Rohini/a002239 | title =Rohini | website = Deagel|access-date =20 July 2021 | url-status=live}}</ref>
;Revathi
Revathi is the ship-borne secondary surveillance radar especially designed for the [[Indian Navy|navy]] to search the air and sea target. The radar can auto track up to 150 targets including tracking. There are three Antenna Rotation Rates (ARR) of 6, 12, 24 RPMs. The radar has ECCM features.<ref>{{cite news |url =https://www.drdo.gov.in/3d-surveillance-radar-indian-navy-revathi | title =3D Surveillance Radar for Indian Navy -Revathi | website =DRDO |location= [[New Delhi]] | access-date =20 July 2021 | url-status=live}}</ref><ref>{{cite news | url =http://14.143.90.243/drdoaudit/revathi-radar | title =Revathi Radar | website =DRDO | location = New Delhi | access-date =20 July 2021 | url-status = live}}</ref><br />
Revathi radar is used to equip the 4 [[Kamorta-class corvette|''Kamorta''-class corvette]]s.
;3D TCR
It has been developed for [[Indian Army]],<ref>{{cite news | url =https://www.indiascienceandtechnology.gov.in/innovations/industrial-innovations/3d-central-acquisition-radar | title =3D Central Acquisition Radar | website = India Science and Technology | access-date=19 July 2021 | url-status=live}}</ref> with a tracking range of 90 km. The radar has a lower antenna mount and is packaged in two vehicles instead of three for the Rohini. It can also feed data to a weapons station 20 km away. It is currently in service.

==Current status==
BEL anticipates a requirement for 100 Rohini radars. [[Bharat Electronics Limited|BEL]] delivered the first ROHINI to the [[Indian Air Force]] on August 6, 2008. Around 20 radars can be manufactured annually.<ref>[http://pib.nic.in/release/release.asp?relid=41106 BEL Hands Over State of The Art ‘Rohini’ Radar to IAF ]</ref>

The ROHINI has a new Indian-developed antenna which is more advanced than that on the original CAR terms of power handling and beam forming technology.

Seven Rohinis were initially ordered by the Indian Air Force for their radar modernization program. The IAF then ordered 30 more radars after evaluation, making total orders 37 of the type.

The IAF has ordered eight Akash SAM squadrons, and the ROHINIs act as the central early warning system for an Akash squadron deployment.

The Revathi adds two axis stabilization for operation in naval conditions, as well as extra naval modes.

Additional orders are also expected from the Indian Army if they order the [[Akash (missile)]] system.

== Operators ==
;{{flag|India}}
*[[Indian Air Force]]
*[[Indian Army]]
*[[Indian Navy]]

==References==
{{Reflist}}

==External links==
* 3D Surveillance Radar for Air Defense - Rohini [http://www.bel-india.in/Products.aspx?MId=13&LId=1&link=59]
* 3D Tactical Control radar [http://www.bel-india.in/Products.aspx?MId=13&LId=1&link=59]
* 3D Naval Surveillance radar - Revathi [http://www.bel-india.in/Products.aspx?MId=13&LId=1&link=69]

{{Defence Research and Development Organisation (DRDO)}}

[[Category:Military radars of India]]
[[Category:Military equipment of India]]
[[Category:Military equipment introduced in the 2000s]]

Central acquisition radar (3D-CAR) - Revision history

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