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Bangalore-based Alpha Design Technologies has secured a contract to supply its new mobile very-high-frequency (VHF) radar to the Indian Air Force (IAF).
Vishal Anand, assistant vice-president of projects at Alpha Design, told Janes at the Aero India 2025 show in Bangalore that the radar can enhance the IAF's capabilities to detect stealth aircraft with low radar cross-section (RCS).
Alpha Design will supply six VHF radars to the IAF with the first expected to be delivered by mid-March, Anand said.
The VHF radar system can be deployed using two 6×6 trucks. One truck carries the radar antenna. The second truck carries the operator station, an uninterruptible power supply (UPS) unit for both vehicles, and an identification friend-or-foe (IFF) antenna, he added.
Anand said the radar is 3D with a range of 360 km. It has 360° coverage and a detection altitude of 15 km. The radar uses solid-state transmit/receive (T/R) modules.
Bengaluru, Feb 12 (IANS): The Defence Research and Development Organization (DRDO) has unveiled the country's first VHS (Very High Frequency) radar, designed to detect fifth-and sixth-generation stealth aircraft which are perceived as great threats to national security, at Aero India 2025 Bengaluru.
The advanced VHF Surveillance radar is currently in the trial stage. It is a latest-generation digital phased array radar with element-level digitisation and optical interfaces.
The radar can operate in high-clutter environments due to its high dynamic range, made possible by element-level digitisation. It can function in both staring and rotation modes. This radar can also be integrated with dedicated tracking radars as a cueing radar, offering a comprehensive solution for Air Defence, according to Electronics and Radar Development Establishment (LRDE), a research and development establishment in India that operates under DRDO.
It can be mounted in mountainous or other challenging terrains. The radar has a detection range of up to 400 kilometres.
The LRDE personnel are confident that the VHS radar with stealth technology will be ready for use by the Indian Air Force (IAF) in about two years and a team of 50 to 60 experts and personnel are working on the project.
Shivashankar from LRDE, talking to IANS, said that this radar represents a breakthrough innovation in stealth target detection in India. It will be capable of detecting all fifth- and sixth-generation aircraft.
"It is a VHS surveillance radar that operates at a low frequency to detect stealth targets such as B2 bombers, F-117, and F-35 aircraft at a range of 400 kilometres. This radar is deployed using HLVs, and both vehicles can operate in all terrains. The radar can be deployed at any location within 20 minutes."
He further stated, "This radar features both steering and rotation modes of operation. In steering mode, it operates within a plus and minus 45-degree range. The radar is equipped with state-of-the-art technology using active array electronics. It is a fully digital radar, allowing us to implement advanced adaptive array signal processing algorithms to counter clutter and multiple jammers."
Currently, India does not have an indigenous low-frequency radar; these radars are presently imported. This new radar will enable India to develop anti-stealth capabilities. It will allow both target tracking and simultaneous surveillance. Stealth target detection will be significantly enhanced by this radar, according to Shivashankar.
"This project was initiated two years ago and is now in the testing stage. In just two years, we have completed the radar's design, development, and manufacturing. We are now in the final stage," he stated.
India's Defence Research and Development Organisation (DRDO) has unveiled a new very-high-frequency (VHF)-band surveillance radar (VHF-SR) at Aero India 2025 in Bangalore.
DRDO officials said on 10 February that the VHF-SR can detect low radar cross-section (RCS) stealth targets at a range of 400 km and track up to 100 targets simultaneously. They added that the radar will be available for field trials within next three months, but did not provide any more details about these evaluations.
The VHF-SR uses 80 TR (transmit/receive) antennaarray modules arranged in 16 columns. Each array column is provided with five TR modules to achieve the angular super resolution of 10–12º. The radar utilises gallium nitride (GaN) TR modules, which provide high output power and enhanced signal reception capability for radar operations.
The radar can generate 20–30 kW output power, depending on its modes of operation. DRDO officials did not disclose details about these various modes. The system can be deployed on a 6×6 high mobility vehicle (HMV) and the antenna array can be kept foldable while moving, which makes it suitable for operating in high-altitude field deployments, DRDO said.
Advanced array signal processing technology is used in the system for element-level digitisation and beamforming. Two 100 kVA generators are used to meet the powe
The Indian Air Force (IAF) has developed a passive radar that can support operations to counter hostile unmanned aerial vehicles (UAVs).
The radar has been developed by the IAF's 9 Base Repair Depot (9 BRD) unit in Pune. Speaking to Janes at the Aero India 2025 show held in Bangalore from 10 to 14 February, Wing Commander Nikhil Kumar Jaiswal from 9 BRD said that the IAF is currently testing this radar.
“Once the trials are completed, the radar will be manufactured in partnership with New Delhi-based Bhumi Entech and installed on different bases of the IAF. It can also be supplied to other services [the Indian Army and the Indian Navy] if required,” Wg Cdr Jaiswal said.
“The radar does not have any transmitter. It only has a receiver. The radar uses long-term evolution (LTE) signals from mobile towers to form a [detection] grid,” he added.
Wg Cdr Jaiswal said the radar uses dipole antennas and has a range of 5 km, a detection altitude of 1 km, a 360° coverage, and an operating frequency of between 800 MHz and 3,500 MHz. The radar is portable and can work in temperatures ranging from -20°C to 80°C.
Indian firm Data Patterns has unveiled its HAWK I 2700 multifunction fire control and tracking radar at the Aero India 2025 show in Bangalore.
A Data Patterns spokesperson told Janes on 11 February that the radar is being developed as part of a project to replace the ageing Russian N011 Bars radar system fitted onto the Indian Air Force's (IAF's) Sukhoi Su-30MKI fighter aircraft.
The spokesperson added that the HAWK I 2700 is being developed indigenously in line with New Delhi's ‘Make in India' policy.
The HAWK I 2700 radar operates in X-band frequency, between 8 GHz and 12 GHz. According to Data Patterns, the radar has search and tracking modes of operation. In search mode it can achieve a range of 250 km, and in tracking mode its range is 200 km, the company said.
The radar's wide field-of-view of up to 100° enables the HAWK I 2700 to detect and track multiple targets simultaneously, the company said. It added that its solid-state active phased-array architecture provides high-precision accuracy in both azimuth and elevation data of the targets.
Maximum throughput of the fire-control radar (FCR) is up to 9 kW and it can provide maximum surveillance across a range of 350 km. Gallium nitride (GaN)-based transmit/receive (T/R) modules used in the radar feature high-output power and enhanced range-detection capability. The radar's sidelobe suppression and frequency hopping methods are intended to enable the radar to operate in dense radio frequency environments.
The HAWK I 2700 radar also features electronic attack modules that can jam enemy radar emissions while operating in an electromagnetic-contested environment.
https://x.com/VivekSi85847001/status/18 ... 6586098093 ---> India's Stealth Detection Radar. Tata Advanced Systems is proud to have provided the platform for the DRDO Stealth VHF Radar, seamlessly integrated on the Tata High Mobility Vehicle platform, displayed at the recently concluded Aero India 2025 in Bengaluru.
https://x.com/Ray70409890/status/1888143692172505449 ---> Bad days for J-20A, J-35 ahead. This beast has sufficient range and generates high res track data that our fighters can be vectored to intercept 5th gen jets.Higher L S band radars can be cued by this to focus all their ERP on a particular volume of airspace. Surprise is gone.
India's Defence Research and Development Organisation (DRDO) displayed its new multimode, multifunctional Virupaksha radar at Aero India 2025 in Bangalore.
A DRDO official told Janes that the Virupaksha active electronically scanned array (AESA) radar has been designed for the Indian Air Force's Su-30MKI upgrade programme.
The air intercept radar is 4D-capable and can simultaneously detect and measure the 4D parameters of the target, including its range, azimuth, elevation, and relative velocity. The radar utilises pulse Doppler technology to detect the moving targets.
DRDO said it has finalised the design architecture of the radar and it can operate in multiple modes – consisting of air-to-air, close combat, air-to-ground, air-to-sea, and ‘navigation' – simultaneously.
The Virupaksha radar's antenna is 950 mm in diameter and is equipped with approximately 2,400 TR (transmit/receive) modules to achieve high resolution and enhance situational awareness and strike capability. Gallium nitride (GaN) TR modules used in the radar provide high output power and enhance signal reception while being operated.
India's Defence Research and Development Organisation (DRDO) displayed its new multimode, multifunctional Virupaksha radar at Aero India 2025 in Bangalore.
The air intercept radar is 4D-capable and can simultaneously detect and measure the 4D parameters of the target, including its range, azimuth, elevation, and relative velocity. The radar utilises pulse Doppler technology to detect the moving targets.
The Virupaksha radar's antenna is 950 mm in diameter and is equipped with approximately 2,400 TR (transmit/receive) modules to achieve high resolution and enhance situational awareness and strike capability. Gallium nitride (GaN) TR modules used in the radar provide high output power and enhance signal reception while being operated.
the 2,400 TR is more than the F22 or F35s number of TRMs APG 77 and 81 are at 1956 and 1676 [ wiki] ., does it mean the radar is more capable than those two ? I am also assuming the Virupaksha to be an LPI radar
