The KLJ-7, also referred to as the Type 1478, is an X band airborne fire-control radar (FCR) developed by Nanjing Research Institute of Electronic Technology (NRIET), also known as the China Electronics Technology Company's (CETC's) No. 14 Research Institute. In December 2010,

Pakistan Air Force , "Be it deserts or seas; all lie under our wings" (traditional) , colours = , colours_label = , march = , mascot = , anniversaries = ...

's Air Chief Marshal Rao Qamar Suleman announced that KLJ-7 radar will be built at

Pakistan Aeronautical Complex The Pakistan Aeronautical Complex ( ur, ), or PAC) is a major defense contractor and an aerospace manufacturer that is headquartered in Kamra, Punjab, Pakistan. The Pakistan Aeronautical Complex is one of the largest defense contractor in ...

(PAC), in Kamra, north of

Islamabad Islamabad (; ur, , ) is the capital city of Pakistan. It is the country's ninth-most populous city, with a population of over 1.2 million people, and is federally administered by the Pakistani government as part of the Islamabad Capital ...

Development and design

The KLJ-7 uses a mechanically-steered

planar array Planar is an adjective meaning "relating to a plane (geometry)". Planar may also refer to: Science and technology * Planar (computer graphics), computer graphics pixel information from several bitplanes * Planar (transmission line technologies), ...

antenna and bears similarities with the various Russian radars imported in the 1990s. Russian radar design houses

Phazotron JSC Phazotron-NIIR (Phazotron-NIIR, russian: ОАО «Корпорация «Фазотрон-НИИР»), is Russia's largest developer of military radars and avionics. Named after one of its major projects, the first cosmotron in the former-USS ...

and NIIP had worked closely in the past with the Chinese radar design bureaus and provided technical assistance as well as operational models of Russian-made radar sets that were used as benchmarks in the process of these Chinese firms developing their own design. Up to 20 units of the Phazotron Zhemchoug ('Pearl) radar were imported in the mid-1990s for evaluation along with 2 units of Phazotron (NIIR) RP-35, The KLJ-7V1 has multiple modes, both

beyond visual range A beyond-visual-range missile (BVR) is an air-to-air missile (BVRAAM) that is capable of engaging at ranges of or beyond. This range has been achieved using dual pulse rocket motors or booster rocket motor and ramjet sustainer motor. In additio ...

(BVR) and close-in air-to-air modes, ground surveillance modes and a robust anti-jamming capability. The radar can reportedly manage up to 40 targets, monitor up to 10 of them in

track-while-scan The track while scan (TWS) is a mode of radar operation in which the radar allocates part of its power to tracking the target or targets while part of its power is allocated to scanning, unlike the straight tracking mode, when the radar directs all ...

(TWS) mode and simultaneously fire on two BVR targets. The detection range for targets with a radar cross-section of 3 square meters is stated to be ≥75 km (≥35 km in look-down mode). Surface sea targets can be detected at up to 135 km. Most modern Chinese air-launched weapons, such as the short-range PL-9C and the beyond-visual-range PL-12 (SD-10) air-to-air missiles are supported by the KLJ-7. It has been reported that KLJ-7 also has modes to support a range of NATO weaponry. According to a

programme officer, after having "flown with this radar" as well as "other models... such as the Thales RC400" and evaluating them for the

JF-17 The CAC/PAC JF-17 Thunder ( ur , جے ایف-17 گرج), or FC-1 ''Xiaolong'' (), is a lightweight, single-engine, multi-role combat aircraft developed jointly by the Chengdu Aircraft Corporation (CAC) of China and the Pakistan Aeronautica ...

lightweight fighter, it was found that "the Chinese radar is every bit as capable as its contemporary analogues." A more powerful model, called the KLJ-7V2, has been produced.

KLJ-7A

During the 2016 Zhuhai Airshow, a new model called KLJ-7A was unveiled to the public. It might be used in JF-17 Block-3. It has 2 Active electronically scanned array versions: one on a mechanically steered mount to increase field of view, another one with one frontal antenna and 2 lateral antenna arrays.

Radar modes

Data from: Janes Defence *Range While Search (RWS) *Velocity Search (VS) *Single Target Track (STT) *

Track While Scan The track while scan (TWS) is a mode of radar operation in which the radar allocates part of its power to tracking the target or targets while part of its power is allocated to scanning, unlike the straight tracking mode, when the radar directs all ...

(TWS) *Dual Target Track (DTT) *Situational Awareness Mode (SAM) *Air Combat Mode (ACM)(with five sub-modes) *Real Beam Map (RBM) *Doppler Beam Sharpening (DBS) *Ground

Moving Target Indication Moving target indication (MTI) is a mode of operation of a radar to discriminate a target against the clutter. It describes a variety of techniques used for finding moving objects, like an aircraft, and filter out unmoving ones, like hills or tree ...

/Ground Moving Target Track (GMTI/GMTT) *Air to Ground Ranging (AGR) *

Synthetic Aperture Radar Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes. SAR uses the motion of the radar antenna over a target region to provide fine ...

(SAR) *Sea Single Target Track (SSTT) *Beacon (BCN)

Specifications

Data from: JF-17 official website *Frequency: X band *Range: **Look-up: 150 km (for RCS of 5m²) (V1) or 200 km (for RCS of 5 m²) (V2), **Look-down: 100 km (for RCS of 5m²) (V1) or V2 *Total targets tracked: 10 in TWS (Track-While-Scan) mode (V1) *Reliability: **MTBF (Mean Time Between Failure): 220 hours **MTTR (Mean Time To Recovery): 0.5 hours *Weight: ≤120 kg *Volume: 0.065 m³

References

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External links