Veripos LD5-A-2 / LD5-A2-GG2 | Integrated GNSS/Mobile Unit

The Veripos LD5-A-2 / LD5-A2-GG2 is a sophisticated, high-precision GNSS (Global Navigation Satellite System) receiver and mobile communications unit. Designed specifically for offshore positioning and survey applications, this integrated unit is engineered to provide reliable, decimeter-level accuracy even in challenging maritime environments.

Product Specifications

Application Areas

The LD5 series is a staple in the global offshore industry for tasks requiring high-integrity positioning:

• Hydrographic Surveying: Precise seabed mapping and data acquisition.
• Offshore Construction: Positioning of barges, cranes, and subsea structures.
• Seismic Exploration: Accurate positioning of streamer vessels and seismic equipment.
• DP (Dynamic Positioning): Providing high-reliability position inputs for vessel station-keeping.

Product Usage Instructions

1. Antenna Placement: Mount the GNSS/L-band antenna in a location with a clear, unobstructed 360-degree view of the sky and minimal interference from ship structures.
2. Cabling: Use low-loss coaxial cable for the antenna connection. Ensure all connections are watertight and properly grounded to mitigate lightning and electrical surge risks.
3. Startup: Upon power-up, the unit will acquire satellite signals and synchronize with the L-band correction signal (e.g., Apex, Ultra, or Standard). Monitor the status LEDs and internal diagnostics to ensure lock.
4. Configuration: Use the web-based interface or dedicated Veripos software to configure output strings (NMEA/proprietary) and select the desired correction service.
5. Integration: Connect the serial or Ethernet output to your survey suite or DP system for real-time positioning data.

Frequently Asked Questions (Q&A)

Q: What is the difference between the LD5-A-2 and the GG2 variant?

A: The “GG2” designation generally indicates enhanced support for GLONASS satellites, providing better availability and geometry, especially in high-latitude regions or areas with limited sky views.

Q: Does this unit require a subscription?

A: Yes, for high-precision differential corrections (like Apex or Ultra services), a valid subscription with the GNSS service provider is required to decrypt the correction data received via the L-band.

Q: Can I use this for RTK surveying?

A: While the LD5 is an L-band receiver, it can often be integrated into systems where RTK/RTCM corrections are utilized alongside satellite-based services for redundant, high-accuracy positioning.

Recommended Inventory

1. LD5-A2-GG2 (Integrated Receiver Unit)
2. GNSS/L-band Combo Antenna
3. Low-Loss Antenna Cable (Custom lengths)
4. Power Interface Cable (Flying lead or terminated)
5. Serial Communication Cable (DB9/DB25)
6. Ethernet Configuration Cable
7. Rackmount Accessory Kit
8. Veripos Diagnostic/Setup Software
9. Spare TNC/N-Type Connector Kits
10. Surge Protection Modules (For antenna lines)