Thales unveils TopStar Smart Receiver for jam-resistant navigation

Thales has launched a new compact receiver that combines positioning, navigation and timing with anti-jamming protection in a single unit, aiming the product at land vehicles, drones and munitions operating in contested electromagnetic environments. 

The TopStar Smart Receiver, unveiled on April 16, 2026, by the group, is pitched as the most compact three-in-one Position, Navigation and Timing (PNT) solution on the market, and is assembled at Thales’s site in Valence, France. The group says the unit is already available for testing in operational conditions. 

A three-in-one architecture 

The receiver pulls together three functions that are usually handled by separate pieces of equipment on a platform. The first is a dual-constellation GNSS receiver that processes signals from military constellations, Galileo Public Regulated Service (PRS) and civilian GPS, with built-in resistance to spoofing.  

The second is an anti-jamming layer based on an adaptive Controlled Radiation Pattern Antenna (CRPA), which Thales says allows the receiver to continue operating up to 30 times closer to a jammer than a conventional GPS receiver. 

The third function is a high-performance clock designed to keep tactical radios synchronized for up to 48 hours after a loss of GNSS signal. Thales contrasts that figure with what it describes as the 30-minute holdover typical of conventional equipment, a gap that matters for radio networks that rely on precise timing to maintain communications when satellite signals are degraded or denied. 

“Powered by cutting-edge technologies, the TopStar Smart Receiver delivers resilient, high-performance Position, Navigation and Timing (PNT) capabilities for land platforms, drones and munitions,” said Florent Chauvancy, Vice-President for Avionics and Flight activities at Thales. 

Targeting a European sovereign supply chain 

Thales is positioning the product within what it calls a sovereign European industrial base, with the full assembly handled in Valence, France. In June 2025, Thales unveiled a plan under which €55 million is being invested to scale up resilient navigation production in France, including the ramp-up of TopStar-M (a GNSS receiver combining Galileo PRS and GPS M-code signals) and TopShield (a CRPA anti-jamming antenna) output at Valence, alongside a fourfold increase in inertial navigation capacity at Châtellerault, France, through 2028. 

By folding GNSS reception, CRPA-based anti-jamming and radio-grade timing into a single enclosure small enough for drones and munitions, Thales is aiming at integrators that have so far had to stitch together separate components, with the size, weight and power (SWaP) penalties that entails. The same architecture also opens the door to retrofits on existing land vehicles where space and wiring constraints would rule out a bulkier solution. 

A response to persistent NAVWAR pressure 

The launch comes against a backdrop of sustained GPS jamming and spoofing across Eastern Europe and the Middle East.  

The International Civil Aviation Organization formally condemned Russia and North Korea over persistent GNSS interference in October 2025, and the European Union Aviation Safety Agency and Eurocontrol have since published a joint action plan aimed at building a coordinated European response. High-profile incidents, including the suspected jamming of European Commission President Ursula von der Leyen’s aircraft on approach to Plovdiv in August 2025, have pushed the issue into mainstream political debate. 

On the military side, the rapid spread of loitering munitions, reconnaissance drones and satellite-guided precision weapons, most visibly in the war in Ukraine, has pushed electronic warfare to the center of tactical planning on all sides. Jamming and spoofing systems that were once the preserve of specialist units are now fielded en masse by regular forces, and the receivers that guide drones and munitions to their targets have become a primary object of that effort. 

Thales Executive Vice-President for Avionics Yannick Assouad told AeroTime at the Singapore Airshow 2026 that the group was rolling out upgraded inertial navigation systems and anti-jamming technology across its civil and military product lines in response to that threat picture. 

The Astradia star tracker at Paris Air Show 2025 (Credit: AeroTime)The TopStar Smart Receiver lands in a growing field of alternatives to conventional GNSS. Sodern’s Astradia star tracker, derived from the French VISION program, offers passive celestial navigation that emits no signal and is therefore impossible to jam, while UK-backed quantum inertial navigation trials by Infleqtion, BAE Systems and QinetiQ are pursuing GNSS-free positioning through optical atomic clocks and ultra-cold atom sensors. 

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