Veripos LD8 User manual

LD8
Operations Manual
AB-V-MA-00635_RevA7
19 January 2022

Contents
LD8 Operations Manual 2
Contents
1Introduction.................................................................................................................................................................. 3
1.1 LD8 receiver..........................................................................................................................................................3
1.2 Scope....................................................................................................................................................................3
1.3 System requirements............................................................................................................................................3
1.4 VERIPOS Helpdesk..............................................................................................................................................3
1.5 Activating VERIPOS correction services...............................................................................................................4
1.6 Terms and abbreviations.......................................................................................................................................5
1.7 Document conventions..........................................................................................................................................6
1.8 Waste electrical and electronic equipment............................................................................................................7
1.9 Disclaimer.............................................................................................................................................................8
2Hardware overview...................................................................................................................................................... 9
2.1 Overview and description......................................................................................................................................9
2.2 LEDs.....................................................................................................................................................................9
2.3 Interface panel connections ................................................................................................................................11
3Ethernet and WebUI connection............................................................................................................................... 12
3.1 Ethernet ..............................................................................................................................................................12
3.2 WebUI connection...............................................................................................................................................12
4Configuration and operation..................................................................................................................................... 13
4.1 WebUI status ......................................................................................................................................................13
4.2 LD8 password.....................................................................................................................................................15
4.3 L-band configuration ...........................................................................................................................................15
4.4 Activation and deactivation of VERIPOS services ..............................................................................................18
4.5 Calculation configuration.....................................................................................................................................19
4.6 Ethernet configuration.........................................................................................................................................21
4.7 Output configuration............................................................................................................................................23
4.8 Input configuration...............................................................................................................................................28
4.9 Rolling log...........................................................................................................................................................29
4.10 Factory reset.......................................................................................................................................................30
5Reference information............................................................................................................................................... 31
5.1 Commands list index...........................................................................................................................................31
5.2 LD8 output sentences.........................................................................................................................................32
5.3 NMEA talker IDs..................................................................................................................................................32
6Contact information................................................................................................................................................... 46
6.1 VERIPOS Helpdesk details.................................................................................................................................46
7Appendix .................................................................................................................................................................... 47
7.1 L-band coverage map.........................................................................................................................................47

Introduction
LD8 Operations Manual 3
1 Introduction
This document provides the information required to operate the Hexagon | VERIPOS LD8 receiver.
It will help to have the following items available when consulting this document:
•LD8 and associated equipment shipped to site.
•PC or Laptop meeting specified System requirements.
•The Delivery note provided within the shipment from VERIPOS.
•VERIPOS document LD8 Installation Manual.
•VERIPOS document Antenna and Coaxial Cable Installation.
•LD8 FAQ material and Quick Guides, available from https://help.veripos.com.
1.1 LD8 receiver
The LD8 is a high precision system, built into a lightweight, compact and environmentally protected enclosure
and designed to operate reliably in the most demanding of marine environments. Key system features:
•Supports decimetre level multi-constellation positioning with VERIPOS Apex and Ultra PPP correction
services
•Compatible with VERIPOS Quantum software
•EN60945 Marine Certified
•555 channels, all constellations, multi frequency tracking
•Simultaneously track up to 3 VERIPOS correction service satellites
•ALIGN® GNSS heading solution
•Supports RTK operations
•Multiple communication interfaces for easy installation
•WebUI configuration utility
1.2 Scope
The purpose of this manual is to provide the information necessary to configure and operate the LD8 receiver.
1.3 System requirements
This release of LD8 requires a PC or laptop with Windows 7 or Windows 10 installed, capable of running the latest
version of Microsoft Edge, Internet Explorer, Mozilla Firefox or Google Chrome (see individual browser
requirements for more information) and an Ethernet port.
1.4 VERIPOS Helpdesk
Throughout this manual, references are made to the VERIPOS Helpdesk. The Helpdesk is a service provided as
first point of contact for all VERIPOS technical enquiries and fault reports. It is manned 24 hours per day, 365
days per year. Full contact details are listed in the Contact information section.
For support cases VERIPOS recommend that initial contact is made via supp[email protected], or by raising a
ticket on VOSS https://help.veripos.com. The Helpdesk will be immediately notified and will begin providing
support.
The Helpdesk is trained to aid with common queries and will escalate tickets to regional technical staff for more
complex issues.

Introduction
LD8 Operations Manual 4
1.5 Activating VERIPOS correction services
VERIPOS correction signals are provided as a chargeable service. In order for the LD8 to decode corrections and
output a corrected position, it must be activated. The user can send a request for an activation of services to the
VERIPOS Helpdesk and the activation will then be sent via L-band satellite to the requested unit.
When not in use, some service agreements may allow for deactivation of the service. The activation/deactivation
procedure is detailed in section Activation and deactivation of VERIPOS services.
NOTE
To use VERIPOS correction signals a contract between the users’ company and VERIPOS must be in place.
VERIPOS call this a Service Access License (SAL).
To avoid delays users should record the SAL number associated with the VERIPOS equipment.
The VERIPOS Helpdesk are unable to activate any equipment unless an active SAL exists, and its reference
number can be determined.

Introduction
LD8 Operations Manual 5
1.6 Terms and abbreviations
AC Alternating Current
APEX VERIPOS high accuracy positioning solution
BEIDOU Chinese commissioned GNSS
dB Decibel
DHCP Dynamic Host Configuration Protocol
DOP Dilution of Precision
DP Dynamic Positioning
DQI Differential Quality Indicator
EU European Union
GALILEO European commissioned GNSS
GLONASS GLObal NAvigation Satellite System - Russian commissioned GNSS
GNSS Global Navigation Satellite System
GPS Global Positioning System - United States GNSS
HDOP Horizontal Dilution of Precision
Hz Hertz
ID Identification
IP Internet Protocol
IPv4 Internet Protocol version 4
LAN Local Area Network
L-band Signal transmitted to carry correction data to mobile users
LD8 VERIPOS receiver containing combined L-band and GNSS card
LED Light Emitting Diode
NMEA National Marine Electronics Association
PDOP Positional Dilution of Precision
PPP Precise Point Positioning
PPS Pulse Per Second
PRN Pseudo Random Noise
PSN Product Serial Number
PWR Power
QZSS Quasi-Zenith Satellite System - Japanese commissioned GNSS
RJ45 A physical network interface standard used in telecommunications
RTCM Radio Technical Commission for Maritime Services
RTK Real-Time Kinematic
SAL Service Access License
SBAS Satellite Based Augmentation System
SMA SubMiniature version A
Standard VERIPOS Single frequency DGPS system
TCP Transmission Control Protocol
UAL User Accuracy Level
UI User Interface
Ultra VERIPOS high accuracy position solution
USB Universal Serial Bus
UTC Coordinated Universal Time
VDC Volts Direct Current
VDOP Vertical Dilution of Precision
VOSS VERIPOS Online Support System
WAAS Wide Area Augmentation System
WebUI Web User Interface
WEEE Waste Electrical and Electronic Equipment
Wi-Fi IEEE 802.11 (wireless) standard

Introduction
LD8 Operations Manual 6
1.7 Document conventions
Typographical conventions
Italic or bold text is used to emphasize certain information. Italic is also used in cross-references to other parts
of the document and to other documents.
Bold text is also used for indicators and touch screen “push-buttons” commands.
“Text within quotes” is used when display screens are mentioned in text.
Monospace text is used for input/output strings to/from the device.
Special notices
WARNING
A warning indicates the risk of bodily harm or serious damage to the hardware.
CAUTION
A caution indicates the risk of damaging the hardware or adversely impacting the
operation of the system.
NOTE
A note contains important information to help you make better use of the system.

Introduction
LD8 Operations Manual 7
1.8 Waste electrical and electronic equipment
The Waste Electrical and Electronic Equipment Directive (hereinafter referred to as the “WEEE directive”) places
an obligation on EU-based manufacturers, distributors, retailers and importers to take-back electronics products
at the end of their useful life. A sister directive, RoHS (Restriction of Hazardous Substances) complements the
WEEE directive by banning the presence of specific hazardous substances in the products at the design phase.
The WEEE directive covers all VERIPOS products imported into the EU as of August 13, 2005. EU-based
manufacturers, distributors, retailers and importers are obliged to finance the costs of recovery from municipal
collection points, reuse, and recycling of specified percentages per the requirements contained in the WEEE
Directive.
Instructions for disposal of WEEE by users in the European Union
Products which have the undernoted symbol located on either the product itself or its packaging indicates that the
product must not be disposed of with other waste. Instead, it is the user’s responsibility to dispose of the product
by handing it over to a designated collection point for the recycling of WEEE. The symbol shown below is on the
product or on its packaging, which indicates that this product must not be disposed of with other waste. Instead,
it is the user’s responsibility to dispose of their waste equipment by handing it over to a designated collection point
for the recycling of waste electrical and electronic equipment.
The separate collection and recycling of your WEEE at the time of disposal will help to conserve natural resources
and ensure that it is recycled in a manner that protects human health and the environment. For more information
about recycling centres, please contact the local city office, the household waste disposal service or the product
supplier.

Introduction
LD8 Operations Manual 8
1.9 Disclaimer
VERIPOS Limited (hereinafter referred to as “VERIPOS”) has taken every care in the preparation of the content
of this Manual (“Manual”). This Manual and its contents are provided “as is” without any representations or
warranties, express or implied. VERIPOS makes no representations or warranties in relation to this Manual and
the content provided herein, including but not limited to the safety, suitability, inaccuracies or typographical errors
of this Manual. There are inherent dangers in the use of any software (including any firmware), and the end user
is solely responsible for determining whether the relevant software provided by VERIPOS and this Manual are
compatible with the end user’s equipment and other software installed on such equipment. End user is also solely
responsible for the protection of equipment and the backup of data.
VERIPOS reserves the right at its sole discretion, but without any obligation, to make amendments or
improvements to, or withdraw or correct any error(s) or omission(s) in any portion of the Manual without notice.
Although VERIPOS makes a reasonable effort to include accurate and up to date information, VERIPOS does
not warrant or represent that this Manual and its contents are current, complete, accurate and/or free from errors.
VERIPOS does not accept any responsibility or liability for the accuracy, content, completeness, legality or
reliability of this Manual and the content provided herein.
If you have any questions or comments about this Manual or our Privacy Policy, please contact us at:
[email protected].
The LD8 hardware and associated software is subject to VERIPOS Terms and Conditions Relating to the
Provision of VERIPOS Services.
The software described in this document is furnished under a licence agreement and/or non-disclosure
agreement. The software may be used or copied only in accordance with the terms of such agreement. It is against
the law to copy the software on any medium except as specifically provided for in the license or non-disclosure
agreement.
Copyright © 2022 VERIPOS Limited. All rights reserved.
No part of this Manual and its contents may be reproduced, copied, re-engineered, adapted, redistributed,
published, commercially exploited or transmitted in any form, by any means, electronic or mechanical, including
photocopying or recording, without the express prior written permission of VERIPOS. Applications for any written
permission should be addressed to VERIPOS House, 1B Farburn Terrace, Dyce, Aberdeen, AB21 7DT, United
Kingdom.
Unauthorised reproduction, copying, re-engineering, adaptation, redistribution, publication or commercial
exploitation of this Manual or its contents may be subject to civil as well as criminal sanctions under the applicable
laws. VERIPOS will aggressively protect and enforce its intellectual property rights to the fullest extent, which may
include seeking all available remedies in the civil or criminal courts if necessary. Where reproduction, copying, re-
engineering, adaptation, redistribution, publication or commercial exploitation of this Manual or its contents has
been permitted by VERIPOS in accordance with this disclaimer, then no changes in the Manual or deletion of any
kind to the Manual may be made. You acknowledge that you do not acquire any ownership rights by accessing,
viewing or utilising this Manual and agree that you shall not hold itself out to any third party as having any
ownership rights to this Manual.
You further agree to save, indemnify, defend and hold VERIPOS harmless on written demand, from all claims,
losses, damages, costs (including legal costs), expenses and liabilities of any kind and nature, invoked against
VERIPOS by any third party, for or arising out of, any alleged infringement of any proprietary or protected right
arising out of or in connection with your utilisation of this Manual and/or in connection with any representation
made by you to third parties of ownership of any kind with respect to this Manual.
VERIPOS ® is a trademark of VERIPOS Limited and/or its licensors. All other marks used herein are trademarks
of their respective holders. All other marks used herein are trademarks of their respective holders. Veripos Limited
is part of the Hexagon Autonomy and Positioning division of companies of Hexagon AB.

Hardware overview
LD8 Operations Manual 9
2 Hardware overview
This section describes the physical characteristics of the LD8, provides information on the different possible LED
statuses and details the interface panel inputs.
2.1 Overview and description
•The LD8 is a small, lightweight and low power system.
•VERIPOS provide a +9 to +36 VDC power supply with the LD8.
•The unit incorporates front panel LED indicators for status monitoring.
•Command-line driven terminal configuration can be carried out via a web-based interface.
2.2 LEDs
The LD8 has five LED indicators to communicate the LD8 receiver status:
Label
Description
1. TRANSFER
Not currently supported
2. GNSS
Indicates the position
status of the receiver
3. LOG
Indicates the status of
logging to the receiver
internal memory
4. INS
Not currently supported
5. PWR
Indicates the power
status of the receiver
The following subsections detail the different possible LED states and their corresponding definitions:
PWR LED
State
Description
Solid green
Operational mode
Solid yellow
In the process of booting
Solid red
Error, or update of receiver component in progress
GNSS LED
State
Description
Solid green
PPP (APEX or Ultra) solution
Slow green blink
RTK
Fast green blink
DGNSS (Standard or SBAS) solution or uncorrected
Solid yellow
No solution

Hardware overview
LD8 Operations Manual 10
LOG LED
State
Description
Off
LD8 is connected to a computer as a mounted device
Green blink
Logging to internal memory
Green solid
Internal logging stopped
Green/Yellow
alternating blink
Logging to internal memory with low memory available
Yellow solid
Internal logging stopped with low memory available
Yellow fast blink
Memory is busy
Red solid
Internal memory full and system is utilising a rolling log, or memory has corrupted

Hardware overview
LD8 Operations Manual 11
2.3 Interface panel connections
This section details the antenna and data connectivity available from the LD8 interface panel.
Coaxial
The LD8 interface panel is fitted with two SMA antenna connectors labelled ANT 1 and ANT 2:
Interface panel of LD8 with two SMA antenna connectors
•The L-band and GNSS position antenna should be connected to the ANT 1 connector.
•Where the LD8 will be used to compute a heading, a second GNSS antenna should be connected to
ANT 2 connector.
GNSS heading solution direction
Data cables
The LD8 System is supplied with a multiport adapter that splits out into cabling for COM1, COM2, COM3 and 1
PPS signal from a 26-pin high-density connector:
Heading direction
ANT 2
ANT 1

Ethernet and WebUI connection
LD8 Operations Manual 12
3 Ethernet and WebUI connection
The LD8 supports Ethernet (10Base-T/100Base-TX) for configuration and interfacing to other vessel systems. The
Ethernetport supports IPv4Internet layer and TCP/IP transport.
3.1 Ethernet
A PC or laptop with an Ethernet port and an up-to-date version of Microsoft Edge, Internet Explorer, Mozilla Firefox
or Google Chrome is required to configure the LD8 for operation. Both Microsoft Edge and Internet Explorer come
pre-loaded onto VERIPOS PCs when issued with the unit.
The LD8 is shipped with a factory default IP address of 192.168.2.8. The connecting PC or laptop should be
configured to use the same IP subnet.
If the LD8 needs to be configured to join an existing TCP/IP network, the commands to assist configuration can
be found in section Ethernet configuration.
3.2 WebUI connection
Once network connectivity has been established to the LD8, open a browser and enter the default LD8 IP of
192.168.2.8 into the address bar. This will load the LD8 WebUI:

Configuration and operation
LD8 Operations Manual 13
4 Configuration and operation
There are two ways in which the LD8 can be configured, by using VERIPOS Quantum software, or by using the
LD8 WebUI. Quantum must be used if being used for system monitoring. If Quantum is not available, system
configuration must be performed through the WebUI, which features a terminal application that can be used for
sending commands.
This section introduces the WebUI and details how to perform LD8 system configuration using both terminal
commands and, where available, the WebUI. For configuration with Quantum please refer to the Quantum User
Manual.
4.1 WebUI status
Once connected to the LD8 via Ethernet and the WebUI has been loaded, the user will be presented with the
LD8 WebUI Home > Status page. This page displays information relating to the status and behaviour of the
system. To gain access to any other pages or functionality it is necessary to use the Login option, found in the
top right-hand corner of the page. To login to the system locate the LD8 serial number, which typically starts with
'NMPL' and can be found on the underside of the unit. When prompted, use the LD8 serial number as the
password and click Log In. Changing the password is possible, as detailed in section LD8 password.
NOTE
The LD8 will be supplied with either the WebUI or Quantum. If the WebUI is required but missing
please contact VERIPOS.

Configuration and operation
LD8 Operations Manual 14
WebUI Status page items
At the top of the page is a summary bar containing key system information. Below this, the main body of the LD8
WebUI Home > Status page is split into several boxes, with each box containing useful system information:
Item
Description
Positioning
Information relating to the operating mode, calculated position type, latitude, longitude,
height, heading (if available), 2d-SD and datum.
Satellite View
A polar plot, showing currently tracked GNSS satellites. Clicking on any satellite will reveal
elevation, azimuth and signal strength information for that satellite. Highlighted below the
plot are the numbers of satellites used in the solution, (green) unused (orange), and
unhealthy (red).
Ports
Information regarding available ports. Highlights which ports are configured for input
(and/or) output, as well as which are available and in use (green), available but idle
(orange) and not available (grey).
Logging
The system logging status. Includes present log file size, the name of the currently logging
item and which messages are being logged.
Device
Present CPU and storage usage, system temperature, antenna voltage and current.
Interference
Highlights detected interference.
Heading
Heading and pitch information, and baseline length.
Sending commands via WebUI terminal
Once a user has logged into the LD8, the system can be configured by using terminal commands. The WebUI
provides a terminal window which can be used for sending commands and receiving status information from the
unit. The WebUI terminal can be accessed by clicking on Tools on the top bar then Terminal.
Commands entered into the input bar can be sent to the unit by using the keyboard Return/Enter key. They will
appear in the terminal in green, with echoed responses from the LD8 appearing in black.
Sending commands will trigger one of three different responses from the LD8:
Status response
When requesting system status information, such as querying which L-band beam/s are presently being tracked,
the LD8 should respond with an ‘<OK’echo, followed by the requested information.

Configuration and operation
LD8 Operations Manual 15
Acknowledgement response
When successfully making a configuration change a single or multiple line response containing ‘<OK>’ can be
expected.
Rejection of command
A rejected command will be flagged as such with ‘INVALID MESSAGE’ or ‘ERROR’ appearing somewhere within
the echoed response, or no response will be received. These responses indicate that a command has not been
understood, or that a command has not been successfully implemented.
Saving changes
Whilst configuring the LD8 via the WebUI terminal, any configuration changes made will not get automatically
saved. Although any configuration changes made may appear to immediately work, without the use of a save
command these changes will be lost in the event of a power cycle. One command is used for saving network
changes and another command is used for saving all other changes. Once either of the below commands has
been sent an acknowledgement response should be received:
Command
Description
SAVEETHERNETDATA
Saves any Ethernet configurations
SAVECONFIG
Saves all settings excluding Ethernet configurations
4.2 LD8 password
To login to the system users will need to locate the LD8 serial number, which typically starts with 'NMPL' and
can be found on the underside of the unit. Before proceeding with mounting or configuration of the LD8, users
may wish to change the password from the LD8 serial number default.
LD8 password configuration via terminal
The LD8 password can be changed via the terminal.
The LD8 password can be changed from one password (such as LD8 serial number) to a new one by entering:
SETADMINPASSWORD OLDPASSWORD NEWPASSWORD
To change the LD8 password back to the LD8 serial number enter:
FRESET USER_ACCOUNTS
4.3 L-band configuration
Tracking of an L-band beam is required to receive VERIPOS service correction and activation data. This section
will detail how to establish and confirm successful L-band tracking to make use of VERIPOS services.
Auto Beam is the recommended way to manage L-band beam choices. When in this mode, the LD8 will
track up to three beams simultaneously with tracking determined based on available L-band satellites and
elevation. Data received from each of the L-band satellites will be utilised within the calculation eliminating the
need to switch beam in the event of tracking loss.
Using Auto Beam can mitigate against the impact of a single beam failure or masking. Additionally, when using
Auto Beam and transiting across different geographic regions, the LD8 will automatically select available L-band
beams. Whilst in this mode no manual beam selection is required.
The receiver also allows for selection of a single L-band beam. If a single beam is selected, it will disable the
Auto Beam selection. VERIPOS have five beams available as detailed below and, in most regions, more than

Configuration and operation
LD8 Operations Manual 16
one beam should be available. A global map with a beam overlay can be found in the Appendix, however the
below table can be used as a general guide:
Beam Name
Coverage
98W
North America, Gulf of Mexico, South America
AORW
North America, Gulf of Mexico, South America, North Sea, West Africa
25E
North Sea, Mediterranean Sea, Africa, Persian Gulf, Caspian Sea
IOR
Asia, Indian Ocean, East Africa, Persian Gulf, Caspian Sea, East Mediterranean
143.5
Asia, Australasia, Indian Ocean
The VERIPOS software Verichart can be used to assess L-band availability by creating coverage charts specific
to a work location.
Where possible, different VERIPOS receiver units on the same vessel should be set to different beams to
maximise redundancy.
Selecting beam via WebUI
To select Auto beam (or a single beam if required) navigate to Configuration > Positioning and click Receive
(Rover), followed by Next. On the next page expand the PPP section and select either Auto or an available
beam, followed by Apply:

Configuration and operation
LD8 Operations Manual 17
Selecting Auto beam via terminal
To enable the use of Auto beam enter the following:
ASSIGNLBANDBEAM AUTO
Selecting a single beam via terminal
The format for assigning a specific L-band beam (98W, AORW, 25E, IOR, 143.5) is as follows:
ASSIGNLBANDBEAM BEAMNAME
Entering a custom beam frequency via terminal
A custom L-band beam name and frequency (in Hz) can be manually entered, however this should be used only
under the instruction of VERIPOS support. The format for assigning a user L-band beam is as follows:
ASSIGNLBANDBEAM MANUAL BEAMNAME FREQUENCY 1200
Tracked L-band beam and signal strength status via terminal
The presently tracked L-band beam/s and signal strength/s can be found by entering:
LOG LBANDTRACKSTAT
The returned status will display information relating to any of the beams that are being actively tracked or
searched for. The tracked L-band beam names will be found in quotation marks at the start of each line, i.e.
“25E”. The value after the beam name relates to the L-band beam frequency followed by the baud rate, which is
typically 1200 bps. The signal strength will be found in the 8th field along for each beam line. Signal strengths
are output in dB and a value of 36.5dB or above is optimal.
When in Auto beam mode the terminal output will be similar to the below:
LBANDTRACKSTAT WCOM1_30 0 50.5 FINESTEERING 2062 457753.000 0a000020 29e3 15441
3
"IOR" 1545865000 1200 974c 00c2 0 -91.416 43.052 3.6091 15658.910 298176 2330
746 38166528 290966 0.0000
"25E" 1545825000 1200 974c 00c2 0 -223.267 43.704 3.8057 78985.820 1504384 5 5
192561152 515 0.0000
"AORW" 1545845000 1200 974c 00c2 0 -280.645 40.858 2.8379 78986.523 1504448 607
571 192569344 68081 0.0015
HDR mode configuration via terminal
Enabling HDR mode can assist with L-band tracking when potential interference sources are present. HDR
Mode uses signal processing to dampen potential sources of RF distortion, at the cost of increased CPU
usage. It is recommended that if any L-band tracking issues are observed (intermittent, low or no signal) this
option is enabled.
HDR mode can be enabled by entering:
ITFRONTENDMODE LBAND HDR
HDR mode can be disabled by entering:
ITFRONTENDMODE LBAND CIC3

Configuration and operation
LD8 Operations Manual 18
4.4 Activation and deactivation of VERIPOS services
To activate or deactivate VERIPOS services, firstly ensure that the LD8 is switched on and tracking an L-band
beam with a healthy signal level (>36.5 dB). Tracking of a L-band beam is required as activation and deactivation
updates are sent via the beam.
Email the VERIPOS Helpdesk ([email protected]) with the Unit ID, Vessel Name, SAL number and
services required.
NOTE
The VERIPOS Helpdesk cannot enable services unless an active SAL exists. To avoid delay,
please make sure that the SAL number is known and available prior to requesting services.
Checking unit activation status via terminal
To check the present activation status of an LD8 enter:
LOG VERIPOSSTATUSA
The unit activation status can be either ENABLE (or) DISABLE.
The unit L-band sync status can be either LOCKED (or) NO_SIGNAL. For activation of VERIPOS services the
unit is required to have a sync status of LOCKED. Refer to section L-band configuration for assistance on
selecting an L-band beam if required.
An example of a status message response, with activation status showing DISABLE and Sync status LOCKED:
VERIPOSSTATUSA,WCOM1,0,67.0,FINESTEERING,2040,375008.267,02008020,0719,14970;
DISABLE,LOCKED*0d439ce3
Checking unit ID and activation service code via terminal
If in doubt as to the LD8 unit ID and/or the activation service code enter the following:
LOG VERIPOSINFO
The LD8 unit ID is required for VERIPOS to activate services and each activation/deactivation is unique to each
unit ID. The activation service code can be used to determine what services the unit is activated to receive.
In the below terminal output, the unit has been successfully activated and the unit ID has been highlighted,
followed by the service activation code:
VERIPOSINFO WCOM1 0 66.0 FINESTEERING 2039 314993.573 02008020 2bd7 14970
<123456 NCC_CONTROLLED 80000111 "2"
In the below terminal output the unit has not yet been activated. The unit ID has been highlighted and no value
yet exists for the service activation code:
VERIPOSINFO WCOM1 0 66.5 FINESTEERING 2040 378378.140 03008020 2bd7 14970
<123456 UNASSIGNED 00000000 ""
NOTE
While a unit may be enabled for single PPP services it may not be fully utilising the service as further
configuration may be required to choose which VERIPOS PPP service to use (APEX or ULTRA).

Configuration and operation
LD8 Operations Manual 19
4.5 Calculation configuration
There are several calculation configuration options which can be changed by the use of commands. These
configuration options can update the way in which VERIPOS service types are utilised.
PPP mode selection via terminal
The two PPP solutions that VERIPOS offer, Ultra and Apex, allow for decimetre accuracy positioning. Each of
these services have no range limitations and can be used in any location.
Some VERIPOS service codes include both the Apex and Ultra solutions. The LD8 can only compute one
solution at a time, which can be specified by using the PPPSOURCE command. Where only one of the PPP
services is enabled it is still required to match the selection to the activated service.
Users should ensure that the solution selected matches the service requested from the Helpdesk. When
changing the receiver PPP selection this will restart the PPP calculation. Allow time for this to settle before the
PPP solution becomes available.
PPPSOURCE APEX
SBAS configuration via WebUI
The LD8 is capable of tracking and using correction data from Satellite Based Augmentation Systems (SBAS).
If SBAS is enabled a SBAS DGNSS solution will be output in the event of VERIPOS solutions failure.
To enable/disable SBAS navigate to Configuration > Positioning and click Receive (Rover), followed by Next.
On the next page expand the SBAS section. Selecting Off will disable SBAS. To enable SBAS select On and
then select region (Auto is recommended). Click Apply to confirm any changes.

Configuration and operation
LD8 Operations Manual 20
SBAS configuration via terminal
The LD8 SBAS mode can be enabled or disabled via the terminal.
The SBAS positioning mode can be enabled by entering:
SBASCONTROL ENABLE AUTO
The SBAS positioning mode can be disabled by entering:
SBASCONTROL DISABLE
Heading offset and output frequency via WebUI
The heading offset and the heading output rate can be configured within the WebUI by navigating to
Configuration > Heading. The heading offset value can be set between -180oand +180o. The output rate can
be set between 1Hz and 20Hz (this does not apply to the HDT output message). Click Apply to confirm any
changes.
Heading offset and output frequency via terminal
A heading offset and the heading output rate can also be configured via terminal. The heading offset value can
be set between -180oand +180o. The heading offset can be added by entering:
HEADINGOFFSET HEADINGOFFSETINDEG
The output rate can be set between 1Hz and 20Hz (this does not apply to the HDT output message). The last
value of the LOG message is the output rate field (1 = 1Hz, 0.5 = 2Hz, 0.2 = 5Hz, 0.1 = 10Hz, 0.05 = 20 Hz).
The output rate can be set by entering:
LOG COM1 GPHDTDUALANTENNA ONTIME 1