Together, they have successfully implemented Blu Wireless’ mmWave wireless system, LightningBlu for onboard Wi-Fi on Caltrain's electrified commuter railway service.
Mark Barrett, Chief Commercial Officer for Blu Wireless, said: "This project marks an important milestone for Blu Wireless, demonstrating our ability to deliver a world-leading mmWave solution that meets the unique demands of the railway environment”. He continued, “Our partnership with Nomad Digital has been key in successfully implementing this pioneering LightningBlu mmWave technology”.
Commenting on the collaboration Jeremy Haskins, Connectivity & Services Solution Director from Alstom, said, “Collaborating with Blu Wireless has enabled us to apply our extensive experience in the rail technology space to deliver an advanced solution for high-speed wireless connectivity with Caltrain, improving passenger experience and setting a new standard for digital connectivity in the San Francisco area."
Key features of LightningBlu include:
- Minimal interference with other systems due to the use of the unlicensed 57-71 GHz spectrum
- Extended range between access points (approximately 1.2 km) compared to traditional Wi-Fi solutions (400-500 metres)
- Reduced infrastructure needs with fewer access points required along the route
The wireless implementation is part of Caltrain's broader modernisation efforts, which include fleet electrification and enhanced passenger services.
Alstom has extensive experience in designing and deploying wireless networks for railways, with over 200 operational networks globally.
Following the success of the project both companies said that they are looking to jointly explore potential applications across a range of rail environments, including metro systems, regional railways and airports.
