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VIAVI
GEOL-2600 Standalone Timing Receiver Module

The GEOL-2600 is a compact receiver module that delivers secure, high-precision timing without relying on GNSS, providing a resilient alternative for systems that demand continuous and trusted time.

Provides trusted timing when GNSS alone isn’t enough.

The GEOL-2600 is a compact, low-power receiver module that enables access to the altGNSS GEO-L signal, a SecureTime℠ GEO service. It provides a trusted source of UTC-traceable time using secure, one-way transmissions from geostationary satellites. By combining a custom receiver design, disciplined oscillator, and a highly directional antenna, the GEOL-2600 delivers high-precision timing without relying on GNSS.

Designed for integration into critical infrastructure and other fixed-location systems, the GEOL-2600 helps maintain timing continuity when GNSS signals are unavailable, unreliable, or insufficient on their own. This module is an ideal solution for applications that require resilient timing, such as power distribution, telecom networks, radar installations, and secure communications.

Features:

• Enables access to the altGNSS GEO-L signal, a SecureTime GEO service
• Delivers sub-100 ns target timing accuracy with UTC traceability
• Operates fully independent of GNSS constellations
• Uses a directional antenna for enhanced interference and spoofing resistance
• Receives a secure, one-way time signal — no return path required
• Compact, low-SWaP design for easy platform integration
• Includes disciplined oscillator for stable and reliable timing output
• Standard 1 PPS and NMEA outputs for downstream interface
• Ideal for fixed-location systems with known position
• Supported by VIAVI for system integration and service activation

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