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Calian has successfully demonstrated a commercially manufacturable C-band GNSS antenna against TrustPoint’s live orbital signal. TrustPoint is the developer of a low-Earth orbit (LEO) satellite navigation system.
Through multiple live-signal tests, the antenna reliably acquired and maintained reception of TrustPoint’s C-band broadcast from orbit. The successful demonstration is a step toward building a resilient and scalable PNT ecosystem capable of supporting users when GPS availability cannot be assumed.
TrustPoint’s C-band architecture offers a powerful complement to traditional GNSS. Operating in a less congested frequency band, C-band signals provide inherent resistance to jamming, support smaller antennas, reduce ionospheric error and improve availability in urban environments. These advantages make C-band suitable for defense applications, autonomous systems and critical infrastructure operators that require dependable navigation and timing under challenging conditions.
By combining TrustPoint’s next-generation C-band signal architecture with commercially scalable hardware like the Calian antenna, the industry moves closer to delivering operationally relevant navigation capabilities designed for contested and denied environments. The successful test campaign demonstrates a direct path toward deploying resilient PNT at scale using commercially manufacturable hardware.
The antenna demonstration is one of several initiatives underway as part of TrustPoint’s broader partnership with Calian. The companies are also collaborating on development of a multi-band antenna capable of receiving L1/L5 and C-band signals, expanding the range of hardware options available to commercial and defense users seeking resilient access to TrustPoint’s navigation services.
The milestone also builds on TrustPoint’s successful demonstration of C-band positioning on NovAtel receivers in GPS-denied environments, further expanding the growing ecosystem of hardware capable of supporting resilient navigation. Together, these advancements reinforce continued momentum toward operational deployment of GPS-independent PNT solutions.
Under a Tactical Funding Increase contract with the U.S. Space Force, TrustPoint is establishing a full end-to-end PNT system consisting of four satellites and four ground stations, with live trilateration and initial operational services targeted within 12 months. The deployment will mark a significant advancement toward delivering a modern, commercially scalable complement to legacy GNSS infrastructure.
