Spectracom GSG-5 GPS/GNSS Simulator

Overview

The Spectracom GSG-5 is a GPS/GNSS satellite simulator that generates RF signals identical to those broadcast by navigation satellites. This allows comprehensive testing of GPS receivers and systems in controlled scenarios without dependence on live sky signals. The GSG-5 base configuration provides 4-channel GPS L1 simulation with software options available to expand to 8 or 16 channels and add support for GLONASS, BeiDou (B1), Galileo (E1), and QZSS constellations. The device is factory upgradable to GSG-62 for additional channels and frequency bands.

Key Features

• Up to 4 simultaneous frequency bands
• All GNSS constellations and frequencies with software options
• 10 Hz iteration rate for dynamic scenario simulation
• Accurate, adjustable power levels
• Synchronization features to external devices or other simulators
• Remote operation via Ethernet, GPIB, and USB
• Pre-defined and user-defined test scenarios
• Windows-based scenario builder software with Google Maps integration
• Front panel interface for stand-alone operation
• Built-in or downloadable navigation files
• Full control over trajectories and dynamics

Applications

• Position and navigation accuracy testing
• GPS receiver sensitivity and dynamic range evaluation
• Simulation of various on-earth and orbital movements and trajectories
• Noise susceptibility and interference testing
• Testing GPS impairments including satellite loss, multipath, and atmospheric effects
• Jamming and spoofing susceptibility evaluation
• GPS time transfer accuracy verification
• Leap second transition testing
• Multiple constellation and modernization signal testing
• Military SAASM and dual-frequency receiver testing
• Survey-grade receiver validation
• Controlled radiation pattern antenna (CRPA) testing
• Hardware-in-the-loop system integration