Introduction
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Core Technical Specifications
Positioning Accuracy & Performance
DGPS RTCM Correction Accuracy: ±0.25 m + 1 ppm RMS (Horizontal), ±0.50 m + 1 ppm RMS (Vertical)
SBAS (EGNOS for Europe) Positioning Accuracy: Typically <1 m Horizontal, <5 m Vertical
GNSS Signal Tracking: 12-channel L1 C/A Code GPS receiver, 2-channel SBAS (WAAS/EGNOS/MSAS) compatible, 2-channel MSK Beacon receiverTrimble Field Systems
Advanced Signal Processing: Trimble EVEREST™ multipath signal rejection technology, minimizing interference from water reflections and port infrastructure for consistent performance in challenging marine environments
Correction Support: Native support for IALA MSK Beacon corrections, RTCM v2.x/v3, CMR, CMR+, NMEA, GSOF, and 1PPS output for seamless integration with survey and marine software
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Hardware & Environmental Specifications
Environmental Protection: IP67 fully dustproof and waterproof rating, tested for shock and vibration resistance for marine vessel installationTrimble Field Systems
Operating Temperature Range: -40°C to +65°C, suitable for extreme climates across the European Union, from Nordic coastal regions to Mediterranean construction sitesTrimble Field Systems
Dimensions & Weight: 24 cm × 12 cm × 5 cm, only 1.31 kg (2.90 lbs) for compact, flexible installation on vessels, vehicles, or site stations
Power Supply: 9.5 V to 28 V DC input with over-voltage protection, optimized for lead-acid battery systems common in marine and field applicationsTrimble Field Systems
Connectivity: Integrated Ethernet with web browser interface for remote configuration and data access, RS232 serial port, USB, and Bluetooth wireless technology for cable-free operationTrimble Field Systems
On-Board Controls: High-contrast backlit display and tactile keypad for standalone configuration and status monitoring, no external controller required
Data Storage: Optional internal data logging for post-processing, with seamless data transfer via Ethernet or serial connection
Key Product Features & Advantages
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Dual-Mode Beacon & SBAS Positioning for Europe
The Trimble SPS351 features integrated IALA MSK Beacon receiver capability, allowing access to free, public differential correction signals across European coastal waters, eliminating the need for additional correction subscriptions or hardware. It is fully compatible with EGNOS, the European Geostationary Navigation Overlay Service, delivering reliable sub-meter accuracy across the entire European continent, even in remote areas with no cellular coverageTrimble Field Systems.
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Advanced Multipath Rejection for Marine Environments
Powered by Trimble’s proprietary EVEREST™ multipath suppression technology, the SPS351 delivers consistent, accurate positioning even in high-interference environments such as busy ports, near large vessels, or in areas with significant water surface reflections. This ensures reliable performance for dredging, rock placement, vessel positioning, and hydrographic survey applications.
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Flexible Remote Management & Installation
With an integrated web server and Ethernet connectivity, the SPS351 offers full remote configuration, firmware updates, and real-time data access from any internet-connected device, making it ideal for unattended operation on vessels or remote site stations. Its modular design supports external antenna installation, allowing the receiver to be mounted in a secure, protected location while the antenna is placed in an optimal position for maximum satellite visibility – a critical advantage for marine vessel installations.
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Rugged, Reliable Design for Long-Term Field Use
Built to Trimble’s legendary industrial standards, the SPS351’s IP67-rated housing and wide operating temperature range ensure reliable performance in the harshest conditions, from saltwater spray on marine vessels to extreme temperature fluctuations on remote construction sites. The low-power design and over-voltage protection make it ideal for continuous operation on battery-powered systems, with minimal maintenance requiredTrimble Field Systems.
Ideal Applications
Marine construction and dredging operations
Hydrographic and bathymetric surveying
Vessel and tug positioning and navigation
Rock and material placement for coastal engineering
Port and harbor construction and maintenance
Offshore and nearshore survey projects
Land-based DGPS base station and rover applications
Precision agriculture base station installations
