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In a move aimed at strengthening the Indian Air Force’s electronic warfare capabilities, the Ministry of Defence has issued a Request for Proposal (RFP) for the upgrade of 258 Su-30MKI fighter aircraft with advanced anti-jamming and anti-spoofing navigation systems.
The procurement involves the supply and integration of indigenous multi-constellation GPS antenna electronic units for the IAF’s frontline Su-30MKI fleet, which forms the backbone of India’s air combat capability.
According to the RFP, the new system is expected to significantly improve the aircraft’s navigation reliability in hostile electromagnetic environments where adversaries may attempt to jam or spoof satellite signals.
The proposed antenna system will be capable of receiving signals from multiple satellite navigation networks, including India’s indigenous NavIC, along with GPS, GLONASS, Galileo, BeiDou and the GAGAN satellite-based augmentation system. Defence officials say the integration of multiple constellations is intended to ensure uninterrupted, accurate positioning data during combat operations.
The specifications laid out in the tender indicate a strong focus on survivability in contested airspace. The system is required to suppress single-source interference by up to 85 decibels and multiple simultaneous interference sources by up to 80 decibels, allowing the aircraft to retain navigation capability even under intense electronic attack.
The equipment must also remain operational across the Su-30MKI’s full flight profile, including altitudes up to 21 km, speeds up to Mach 1.5, and acceleration loads ranging from -2 g to +9 g.
Under the proposed contract, the selected vendor will have to supply 300 antenna systems, 50 field-level testers and 10 base-level testers. The scope of work includes certification trials on two aircraft before fleet-wide integration begins.
The contract also предусматриes installation support across the entire fleet and training of Indian Air Force personnel at the 9 TETTRA School.
The Defence Ministry has stipulated a completion timeline of 24 months from the date of signing of the contract.
The tender has been opened exclusively to Indian companies, in line with the government’s emphasis on indigenisation and reducing dependence on imported defence electronics and avionics.
Bids are to be submitted online by June 22, 2026, while technical bids will be opened on June 23.
Team BharatShakti
