India orders naval GNSS jamming systems

India’s Ministry of Defence has signed a ₹449 crore contract with Accord Software and Systems for 20 enhanced Global Navigation Satellite System jammers, strengthening naval electronic warfare while adding depth to the country’s domestic military electronics base.

The systems are being procured under the Buy Indian-Indigenously Designed, Developed and Manufactured category, with a minimum 75% indigenous content requirement. Bengaluru-based Accord Software and Systems will supply the equipment for the Indian Navy, giving a specialist domestic electronics company a larger role in maritime electronic attack and satellite-navigation denial.

The jammers are designed to degrade the satellite-signal acquisition and tracking performance of hostile GNSS receivers. They can also provide spoofing and deceptive jamming, creating false or corrupted positioning inputs rather than simply denying a signal. In naval operations, that capability gives ships another layer of defence against platforms and weapons that rely on satellite positioning.

Satellite navigation now sits inside almost every part of the battlespace. Missiles, uncrewed aircraft, uncrewed surface vessels, loitering munitions, precision-guided weapons, military vehicles, commercial ships, and logistics systems all depend on positioning, navigation, and timing data to varying degrees. Attacking that dependency can disrupt targeting, movement, approach routes, and coordination.

Shipborne GNSS jammers are not simple bolt-on equipment. A maritime electronic-warfare system must combine RF engineering, signal processing, timing control, high-reliability electronics, antennas, power management, thermal protection, software-defined waveform control, and electromagnetic compatibility with the host vessel. It must operate in an already crowded electromagnetic environment without degrading friendly sensors, communications, navigation, or combat-management systems.

The manufacturing demands are therefore closer to high-end electronics production than traditional naval equipment supply. The programme will require ruggedised hardware, qualified RF modules, secure software development, calibrated testing, environmental screening, and repeatable quality assurance. A 75% indigenous content threshold pushes more of that work into India’s domestic supply chain, where suppliers will need to prove reliability under military conditions.

Naval use adds further pressure. Equipment fitted to warships must survive vibration, humidity, heat, salt, shock, and long deployment cycles. It also needs clear maintenance procedures, modular repair options, diagnostics, spares, and training. A jammer may be compact compared with a missile launcher or radar, but its support model must still match fleet operating patterns.

India’s investment sits within a wider push to strengthen domestic electronic-warfare capacity. Jammers, spoofers, software-defined radios, passive sensors, RF countermeasure systems, and digital threat libraries are becoming core components of modern force protection. Conflicts involving drones and precision weapons have shown that control of the electromagnetic environment can shape survivability as decisively as armour or kinetic interceptors.

The UK’s CRENIC jammer testing illustrates the same production pressures from a different angle, where vehicle-mounted electronic protection is being developed against counter-IED and counter-UAS threats. India’s naval GNSS order belongs to that wider market movement, in which electromagnetic protection is becoming a production category with its own supply-chain constraints.

For the Indian Navy, the systems will support operations in waters where drones, guided weapons, maritime surveillance, and electronic attack are increasingly intertwined. Spoofing capability is particularly relevant because many lower-cost autonomous systems are built around commercial or semi-commercial navigation assumptions. Deception can force those systems away from intended routes, degrade accuracy, or complicate target approach.

For Accord Software and Systems, the order strengthens its role in India’s defence navigation and RF ecosystem. The company’s position in satellite-navigation technology gives it a natural route into jamming and spoofing systems, where knowledge of receiver behaviour, signal structures, and timing becomes central to effective electronic attack.

Production scale will determine how much wider industrial value the contract creates. A 20-system order is meaningful, but the same technology base could expand into land, air, port-protection, and critical-infrastructure applications if India continues to prioritise GNSS resilience and denial. That would require additional testing, platform integration, and configuration control across different environments.

The contract also gives India a measure of sovereign control over a capability that is likely to require frequent software and waveform updates. Electronic warfare does not remain static. Adversaries adapt receivers, filters, antennas, guidance logic, and operating patterns. Domestic production and software access can shorten the update cycle and reduce dependence on external suppliers when threat behaviour changes.

India’s naval GNSS jammer order is therefore more than an equipment purchase. It strengthens a domestic RF and electronic-warfare manufacturing pathway, gives the navy another tool against satellite-navigation-dependent threats, and reinforces the growing role of specialist electronics companies in defence production.