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The Indian Air Force (IAF) has released expressions of interest (EOIs) for the indigenous development of several key components for its Multi-function Phased Array Radar (MPR) system. This system plays a crucial role in air surveillance and target tracking, enhancing the IAF’s air defence capabilities.

The five components for which the IAF seeks indigenous development are:

  • IFF Antenna: This antenna transmits and receives Identification Friend or Foe (IFF) signals, allowing the radar to distinguish between friendly and hostile aircraft.
  • Rotating Union: This device transfers signals between the stationary radar electronics and the rotating antenna, ensuring uninterrupted operation.
  • Central Unit: This unit acts as the brain of the radar system, processing and analyzing radar data to generate track information.
  • MAP Motor: This motor drives the rotation of the antenna, enabling the radar to scan a wide area in azimuth.
  • GU (Guidance Unit): This unit controls the antenna’s movement and ensures accurate pointing for precise target tracking.

MPR Radar Specifications:

  • Type: Indigenous rotating active phased array multifunction 4D radar
  • Capabilities: Automatic detection and tracking of aerial targets (fighter aircraft, slow-moving targets)
  • Instrumented Range: 400 Km
  • Target Detection: 2 sqm RCS targets at 300 Km range
  • Altitude Coverage: 100 meters to 30 Km
  • Operation Modes: Staring and Rotation
  • Rotation Mode:
    • Rotation Speed: 7.5 / 15 rpm
    • Surveillance Coverage: 360° in azimuth, 30° in elevation
  • Staring Mode:
    • Fixed Azimuth
    • Surveillance Coverage: ±60° in azimuth, 30° in elevation
  • Technology:
    • Solid state active aperture phased array
    • Digital Beam Forming
    • Electronic scanning in azimuth and elevation
    • Wide transmit beam, multiple receive beams

The successful development of these indigenous components will be a significant achievement for the Indian defence industry. It will demonstrate the country’s capability to design and manufacture complex defence equipment, boosting self-reliance and contributing to India’s strategic autonomy.

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