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?

How do I implement a basic LAN interface between an LD6 and my Verify QC computer? (v1.11 or later)

This article explains how to configure a LAN interface between an LD6 and a computer which has no other network connection. 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?

If the computer is already connected to a network, it is usually better to interface the LD6 using serial ports (users who wish to implement an LD6 LAN interface to a networked computer should contact support for technical advice).

The LAN connection provides a technically efficient method of transferring all the required data between the LD6 and the Verify QC computer over a single network cable.  It leaves all the PC serial ports available for outputs to other equipment.

Cat5e network cable should be used and this ensures that the full data rates are available for cable lengths of up to 100m. This avoids the length restrictions which sometimes apply when using RS232 interfaces.

The LD6 LAN port should be connected directly to the LAN port of the Verify QC computer, no switch or router is required.  Since the two network cards will be directly connected, a network crossover cable must always be used. Veripos provide a crossover adapter which may be extended to the required length using a standard network cable:

The two vertically stacked ethernet ports are located at the extreme left of the LD6 rear panel. The upper port (LAN1) has a default IP of 192.168.2.2 whilst the lower port (LAN2) has a default IP of 192.168.2.3. It is possible to change the IP addresses but it is recommended that the defaults should be retained since this simplifies support if any problems arise.

The illustrations included in the following notes assume that LAN1 is interfaced (if using LAN2, change the IP addresses from 192.168.2.2 to 192.168.2.3)

The Verify QC computer must be reconfigured to match the LD6:

Open Network Connections from Settings (or) Control Panel. Double-click Local Area Connection to open the Local Area Connection Properties window:

In the list window, select the bottom entry Internet Protocol (TCP/IP) then click the Properties button. The Internet Protocol (TCP/IP) Properties dialog will open:

Change the settings to match the illustration above. Then click OK to accept the changes and return to the previous window.

Click OK again to exit.

With the network connection established, the various data streams are available on the ports listed below:

RTCMa (Primary RTCM correction data)
 Port 9001
RTCMb (Secondary RTCM correction data) 
 Port 9002
GNSS Raw data
 Port 9012
MF RTCM (RTCM correction data from MF Rx)
 Port 9031
UHF RTCM (RTCM correction data from UHF Rx)
 Port 9051 

Note: MF or UHF RTCM is only available if the LD6 is fitted with the optional SBX-4 MF Beacon or ADL UHF Receiver modules.

The following illustrations show examples of Verify QC configuration dialogs.  For user configurations, the Beam and Station selections will obviously be made to suit the work area.

Config > GNSS RX:

Config > GNSS RX:

Config > RTCM Input:

Config > RTCM Input:

Config > RTCM Input:

Note: Examples are shown for interfacing both RTCMa and RTCMb outputs from the LD6. It is only necessary to interface one of these two outputs.

RTCMa provides corrections for the internal position solutions and it is usually best to use this for Verify QC. This leaves RTCMb free for interfacing to any third party devices (these may require limits on the number of stations output.)

MF Corrections

An additional interface must be configured for LD6 units fitted with the optional SBX-4 MF Beacon Receiver

Note: In Verify QC, select Config > RTCM Input > New to open the default configuration window then untick the Veripos box to display the window shown below:

In Verify QC, select Config > RTCM Input > New to open the default configuration window

Dual Beam Operation

Where two LD6 units are installed on a vessel, they will usually tuned to different satellite beams. Users may wish to interface corrections from both beams (both LD6 units) to Verify QC.

The computer cannot easily be interfaced to more than one LD6 unit so corrections from both beams must be made available on each LD6 unit. The method for achieving this is described here.

Once the LD6 units have been configured, the RTCM input from the second beam can be configured in the same way as shown for RTCMa above.  The only difference is that the port number will be changed from "9001" to "19013".  ("19013" is the default, 19014 or 19015 are also possible - see the FAQ How can I interface RTCM data from two LD6 units to Verify QC using a single LAN connection (Dual beam corrections)?.)

Once the LD6 units have been configured, the RTCM input from the second beam can be configured in the same way as shown for RTCMa above

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