Description
Core Product Summary
The Kongsberg DPS 112 (Seatex) is a robust differential GNSS (DGNSS) sensor engineered for marine applications, dynamic positioning (DP) systems, and offshore navigation. Combining dual-frequency GPS and GLONASS signal tracking with a built-in L-band receiver, the unit delivers high-accuracy positioning independent of distance from land-based reference stations.
Designed for demanding maritime environments, the DPS 112 integrates multi-constellation tracking to enhance signal availability and continuity in heavily obstructed or challenging operational zones. It features an embedded display and keypad for local configuration, alongside flexible Ethernet and serial communication interfaces for seamless integration into bridge and automation layouts.
Key Technical Specifications
| Parameter | Specification |
| Manufacturer | Kongsberg Seatex |
| Model / Product | DPS 112 DGNSS Sensor |
| Receiver Type | Combined GPS L1/L2, GLONASS L1/L2, and SBAS receiver |
| Correction Capability | Built-in L-band receiver with Fugro Seastar G2 capability; IALA beacon support |
| Physical Dimensions | 89 mm × 444 mm × 357 mm (Main Processing Unit) |
| Weight | Approx. 5.8 kg (Main Unit) |
| Enclosure Protection | IP67 rating (Main Unit) |
| Operating Temperature | -15°C to +55°C |
| Interfaces | Ethernet interface, configurable serial outputs, USB for software updates |
| Local Interface | Embedded keypad and visual display |
Detailed Product Overview
The Kongsberg DPS 112 is built to fulfill demanding positioning requirements across workboats, platform support vessels, and offshore structures. By processing both GPS and GLONASS satellite constellations on dual frequencies, the sensor mitigates signal masking issues caused by offshore platform structures or coastal terrain, ensuring steady fix availability.
Equipped with an internal Fugro Seastar L-band demodulator, the system utilizes worldwide differential correction services to achieve precise sub-meter and decimeter-level accuracy without relying on local differential reference stations. This makes it well-suited for open-ocean positioning and dynamic positioning operations where positioning reliability directly impacts vessel safety.
The hardware architecture emphasizes operational flexibility. Operators can monitor data streams, track satellite health, and adjust configurations locally using the built-in front-panel display or remotely via standard network protocols. An optional external dedicated display unit provides an intuitive graphical interface customized for bridge and DP console integration.
DPS 112
DPS 112
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
| Antenna Setup | Dual GNSS Antenna Configuration (e.g., Novatel GPS-702-GG-N or equivalent approved antennas) | Requires dual antenna setup for optimal signal reception and baseline stability. |
| Correction Service | Fugro Seastar L-Band Subscription | Active L-band subscription required for worldwide decimeter correction data. |
| DP / Navigation Systems | Standard Marine Automation & Third-Party DP Systems | Configurable data outputs integrate with bridge navigation systems and dynamic positioning computers. |
| Software Management | USB Interface / Network Connection | Software updates and configuration templates can be applied via the unit’s USB port or Ethernet. |
Dimensions, Mounting & Connection Notes
- Main Unit Footprint: Measures 89 mm high by 444 mm wide and 357 mm deep, structured for standard rack or bulkhead mounting in instrument compartments.
- Environmental Rating: The main processing unit features an IP67-rated enclosure designed to resist moisture and dust in marine engineering spaces.
- Cabling & Antennas: Connected via specialized coaxial lines to external roof-mounted multi-frequency antennas (such as NovAtel units), requiring careful cable routing to minimize signal attenuation and RF interference.
- Power and Grounding: Requires stable DC or AC marine power input coupled with proper hull/cabinet earthing to protect internal receiver circuits against transient surges.
FAQ
What is the Kongsberg DPS 112?
The Kongsberg DPS 112 is a dual-frequency differential GNSS (DGNSS) marine sensor that supports precise positioning for vessel navigation and dynamic positioning systems.
Which satellite constellations does the DPS 112 track?
It tracks combined GPS (L1/L2) and GLONASS (L1/L2) satellite constellations, alongside SBAS and IALA beacon inputs.
How does the system achieve high-accuracy corrections?
It includes a built-in L-band receiver configured for Fugro Seastar correction services, enabling worldwide sub-meter and decimeter positioning accuracy.
Can the unit be configured locally without external computers?
Yes, the DPS 112 features an embedded physical keypad and display on the front panel for direct status monitoring and basic configuration.
What communication interfaces are available on the unit?
The sensor includes an Ethernet interface, configurable serial outputs for external bridge equipment, and a USB port utilized for straightforward software updates.
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