How can I interface RTCM data from two LD6 units to Verify QC using a single LAN connection (Dual beam corrections)? How do I archive data on an LD6? How do I change a beam on an LD6? How do I change the PPP solution when my LD6 is enabled for both Apex and Ultra services? How do I check the GNSS tracking capabilities of my LD6 version 8 or 50? How do I check the IP address of my LD6? How do I check which version of LD6 I have? How do I configure an LD6 to receive RTK corrections? How do I configure LD6 TRINAV Output? How do I configure my LD6 to use the Apex service? How do I configure NMEA Sentences on an LD6 versions 8 or 50? How do I configure NMEA sentences on LD6 versions 101 and 105? How do I correctly shut down a LD6? How do I enable and output a heading from an LD6? How do I enable SBAS on my LD6 IMU? How do I factory reset my LD6 unit? How do I implement a basic LAN interface between an LD6 and my Verify QC computer? (v1.11 or later) How do I interface my antennas to the LD6? How do I manually enter an L-band frequency on the LD6? How do I remove satellites from my LD6 version 8 or 50? How do I set up LD6 Outputs for VQC? How do you load a Verify QC config onto the LD6 while in QC mode? I have just changed beams and my station list is not fully populated- Why is this? What are the serial pin-outs of the LD6? What are the tracking capabilities of my LD6 and what services are available to my unit? What data is available on the LD6 Ethernet ports? What direction is the heading on my LD6? What files should I send for data analysis from a LD6 while running quantum on board? What is the best way to interface Verify QC to my LD6 units? What is the expected latency from one PPS to the NMEA ZDA telegram on the LD6? What is the PPS voltage and pulse width of my LD6? What version of GNSS card is installed in my LD6?

What is the best way to interface Verify QC to my LD6 units?

Note that these steps are only applicable for LD6 versions 8 or 50 or 101. If required see How do I tell which version of LD6 I have?

Verify QC requires both GNSS raw data and RTCM correction data from the LD6. Both of these data streams are available using either a LAN or serial interface.

The preferred method of interfacing the LD6 to Verify QC is via a LAN connection. This is technically more efficient, simplifies cabling and leaves more ports spare on the Verify QC computer for output interfaces. It also ensures that adequate data rates are available over all cable lengths normally used for vessel installations (with appropriate cable, lengths of up to 100m are acceptable.)

By default, the upper and lower LAN ports on the LD6 have static IPs with values of and respectively. For the simplest and most reliable configuration, it is recommended that the Verify QC computer should not be connected to an external network. It should be connected directly to the LD6 using a network crossover cable and the default static IPs should be used.

Full configuration details for this "Basic" network interface are provided in a separate FAQ.  Another FAQ describes a method for interfacing dual-beam RTCM data (from two LD6 units) to the Verify QC computer over a single LAN connection.

If the Verify QC computer is already connected to an external network, it is still possible to interface the LD6 over the LAN via a switch or router.  It will be necessary to reconfigure the LD6 port to use a dynamically assigned or custom static IP.

VERIPOS do not recommend this configuration for critical operations since it is impossible to predict the effect of other network components.  This type of interface should only be used where the user has full control over the network and sufficient networking expertise to anticipate the effects of possible interactions.  Unless these conditions can be met, the LD6 should be interfaced using serial connections.

The LD6 has fourteen serial interface ("COM") ports which can be configured to use either the RS232 or RS422 protocols. The RS232 protocol is used by default. The RS422 protocol is normally reserved for long cable runs or for electrically noisy environments.  By default, one of these ports is preconfigured to output GNSS Raw data and two ports are configured to output RTCM data. Full configuration for a standard serial interface are provided in a separate FAQ.


The LD6 serial interface ("COM") and network interface ("LAN") ports all use RJ45 connectors.

All LAN interconnections should be made using standard Cat5e network cables.  As noted above, a network crossover cable is required when connecting the LD6 directly to the Verify QC computer.  VERIPOS can supply a short crossover adapter which may be extended using a standard network cable.

When using serial connections, adapters are usually required to convert between the RJ45 connectors on the LD6 and the 9-pin D-Type connectors used on most computers. VERIPOS supply three 1 metre adapter cables with each LD6 unit.  These may be extended using either a standard (9 pin D-Type) RS232 cable or a standard network cable and 1:1 RJ45 coupler.

Additional adapters may be purchased from VERIPOS or may assembled by the client using standard D9 Modular Adapters.  (Wiring details are provided in a separate FAQ.)