Description
1. At-A-Glance Executive Brief
- Model: DPS112
- Brand: Kongsberg Seatex
- Part Type: DGNSS Marine Positioning Sensor / Receiver
- Lifecycle Status: Mature Legacy / Supported Offshore Migration
- Weight: 3.4 kg (approx. sensor unit)
- Core Protocol: NMEA 0183, Ethernet, RTCM correction inputs
2. Technical Introduction
Positioning integrity drops rapidly in remote offshore sectors lacking local reference station coverage, threatening dynamic positioning stability on workboats and platform support vessels.
The DPS112 integrates multi-constellation satellite tracking with built-in L-band demodulation to deliver reliable, wide-area differential positioning directly into marine automation networks.
3. Core Technical Specifications
- Receiver Type: Combined GPS (L1/L2), GLONASS (L1/L2), and SBAS
- Correction Service: Built-in L-band receiver with Fugro Seastar compatibility
- Position Accuracy: Sub-meter to decimeter level depending on correction subscription
- Interfaces: Ethernet, USB (for software updates), and configurable serial outputs
- Display/Input: Embedded alpha/numeric display with integrated keypad
- Input Voltage: 12 to 24 V DC nominal power supply
- Operating Temperature: -25°C to +55°C marine grade tolerance
- Enclosure Rating: IP66 weather-resistant marine aluminum housing
4. Field Engineer’s Tech Notes
- L-Band Antenna Separation: Ensure adequate physical separation and clear line-of-sight between the GNSS antenna and the L-band satellite antenna on the mast. Co-location interference or proximity to high-power radar beams will degrade carrier-to-noise ratios and cause frequent Seastar demodulator lock drops.
- Firmware and Subscription Synchronization: Replacing a unit on an active dynamic positioning vessel requires matching the firmware version and verifying the Fugro Seastar subscription string. Mismatched node IDs or outdated demodulation parameters will block correction data handshakes with the vessel’s K-Pos system.
5. Adaptive QA & Testing Protocol
Before inventory dispatch, each pre-owned or New Surplus DPS112 sensor undergoes a cold-start GNSS tracking verification test. Technicians connect the receiver to an active multi-constellation simulator or roof antenna to verify lock acquisition times across GPS and GLONASS frequency bands. The internal L-band demodulator is tested for signal decoding stability, and serial/Ethernet communication ports undergo packet-error-rate handshake checks using standard NMEA protocol strings. Functional test reports and diagnostic logs are available upon request to technical superintendents.
6. Buyer’s FAQ
- What is the standard warranty length for this marine sensor?
All units include a 12-month replacement warranty covering hardware performance from the date of delivery.
- Is the Fugro Seastar subscription included with the hardware?
No, correction service subscriptions must be activated or transferred separately through your designated positioning service provider.
- How fast can this unit ship to support an urgent port call?
Expedited international air freight and same-day priority dispatch are available to align with tight vessel schedules.
- Is this exact model a direct swap for older DPS units?
Yes, the DPS112 utilizes standard NMEA data output formats that integrate cleanly into existing marine bridge and dynamic positioning architectures.
