Furuno plans November launch for dual-band GNSS timing series

Furuno plans to launch its GF-100 Series dual-band GNSS disciplined oscillators in November 2026, targeting critical infrastructure that needs resilient time synchronization. The series adds anomaly detection, GNSS signal authentication and dual-band reception to help equipment makers reduce exposure to jamming, spoofing and signal loss.

Why it matters: - The GF-100 Series is aimed at systems that depend on precise time, including telecommunications, power grids, financial systems and broadcasting. - Furuno is positioning the series to keep time synchronization running even when GNSS signals are degraded, jammed or spoofed. - The product could help equipment makers add anti-interference and holdover functions without building the capability in-house.

What happened: - Furuno plans to launch the GF-100 Series dual-band GNSS Disciplined Oscillators in November 2026. - The lineup includes the GF-102, GF-103, GF-105S and GF-105G. - The company announced the planned launch from Nishinomiya, Hyogo, Japan.

The details: - The GF-100 Series detects GNSS signal anomalies and automatically switches to holdover mode using a built-in high-stability oscillator. - The holdover function can be enabled or disabled based on operational requirements. - The series supports L1/L5 dual-band reception and can search for L5 signals independently of the L1 band. - The product supports Galileo OSNMA and QZSS QZNMA signal authentication to verify received GNSS signals. - Dynamic Satellite Selection™ chooses satellites with higher signal quality in multipath environments. - T-RAIM continuously evaluates satellite signals and excludes abnormal ones. - The series comes in two form factors: Short at 34 × 27 × 15.5 mm and Grande at 100 × 52 × 14.1 mm. - Furuno says the GF-105S achieves ±1.5 µs/24h holdover performance in the small form factor, matching the company’s earlier top-tier grande-form-factor performance in the GF-8805. - Furuno says the GF-105S cuts mounting area by about 80%. - All models are hardware-compatible with the current GF-880x Series. - Furuno recommends pairing the series with the AU-500 antenna, which offers high noise immunity and IP67 environmental resistance. - Furuno has participated in Jammertest in Andøya, Norway, since 2024. - Furuno plans real-environment resilience testing with the GF-100 Series in September 2026.

Between the lines: - The launch reflects growing concern over GNSS jamming and spoofing, not just ordinary signal outages. - The dual-band design and authentication features suggest Furuno is pushing toward layered resilience rather than a single backup method. - Hardware compatibility with the GF-880x Series may make upgrades easier for customers already using Furuno timing equipment.

What's next: - Furuno plans to conduct resilience testing in September 2026 before the planned November 2026 launch. - The company says it will continue supporting telecommunications, broadcasting and power systems with GNSS and time synchronization technologies. - Product details are available on the GF-100 Series product page, the GNSS receiver website and the Jammertest participation report.