Syntony GNSS and Chronos Technology partnership

Syntony team in a Swedish road tunnel during SubWAVE testing, showing the positioning in an underground environment
Syntony team in a Swedish road tunnel during SubWAVE testing, showing the positioning in an underground environment
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Syntony GNSS and Chronos Technology partners to offer GNSS Underground Coverage in Tunnels, Stations, Car Parks, Bus Stations & Airports in the UK

Toulouse, France – 15 June 2020. Technology company Syntony GNSS, a leader and expert in the design and manufacture of GNSS systems, and Chronos Technology, a leading resilient GNSS system integrator, have formed a partnership to deliver underground GNSS positioning, navigation and timing (PNT) solutions for critical infrastructure applications in the UK.


GNSS coverage has become fundamental to many services from emergency services to asset tracking for example. Yet when entering an underground area such as a metro/subway, tunnel, car park, airport, or bus station for example, the GNSS signal is lost. Syntony’s SubWAVE™ solution expands the GNSS coverage to underground areas enabling the localisation of any equipment with a standard GNSS chipset, ie standard smartphone, TETRA or future Emergency Services Network handset, used for security (locate emergency calls, keep track of staff), maintenance (locate faults in tunnels, asset management) and services (locate trains, provide guidance).


By emitting a perfect emulation of the “real” GNSS signal, SubWAVE™ offers underground operators, their staff, emergency services and the general public the benefit of full GNSS coverage in all underground areas for both operational and safety reasons. One fundamental aspect is the user only needs a standard GNSS receiver (ie smartphone or TETRA radio); no new handsets, receivers or apps are required. The system operates by broadcasting synthetic location specific GNSS signals through existing or new leaky feeder cables in the tunnels. Accuracy levels vary with leaky feeder and system complexity options, however, 2 meter accuracy is possible with a standard smartphone. The system is widely installed in the Stockholm metro and is in active trials throughout Europe and America.



Joel Korsakissok, President of Syntony GNSS said “We are pleased to form a partnership with GNSS specialists Chronos. Their knowledge and experience, together with their dedicated installation, commissioning and support teams complement our sophisticated solutions.”



Charles Curry, Managing Director with Chronos said “Since its first general availability, one of the well-known shortcomings of the GPS system was lack of indoor or underground coverage. Many have tried to solve this with various technologies over the years – Syntony’s innovative technology offers underground GNSS coverage for PNT applications. We are very excited by the possibilities and pleased to be partnering with them to offer their solution for critical infrastructure applications in the UK.”


In addition, Chronos will also supply Syntony’s sophisticated GNSS simulators used in the aerospace and defense industries for product testing.




About Syntony GNSS

Syntony is an innovative company which is acknowledged as a leader and an expert in designing and manufacturing GNSS systems (sophisticated GNSS simulators and a range of unique GPS underground solutions for Aeronautics, Space and Transportation). Syntony operates around the world with subsidiaries in North America (New York, San Francisco and Montreal), Paris and distributors throughout Asia and Europe with a worldwide customer base including: Airbus, Thales, OneWeb, Honeywell, Rockwell, and metros of Stockholm, New York, Toronto, Helsinki, Munich, and Paris.



About Chronos Technology:


Chronos Technology Limited is a leading international authority on resilient synchronisation and timing solutions for Critical National Infrastructure including use of GNSS, PTP, NTP, and next generation Quantum technologies. Established in 1986, Chronos has unrivalled industry experience gathered over more than 30 years of designing, supplying, installing, commissioning & supporting GNSS systems for timing & navigation applications. In addition, Chronos is the leading authority in GNSS vulnerabilities detection and mitigation technology. We are trusted as experts by our customers across Finance, Power, Broadcast, Aerospace, Telecom, Defence & Security and Manufacturing.