Veripos LD8 User manual

LD8 OPERATIONS MANUAL
AB-V-MA-00635_RevA2
22 January 2020

Introduction
LD8 Operations Manual AB-V-MA-00635_RevA2 2
CONTENTS
1. Introduction.........................................................................................................................5
1.1 LD8 Receiver..................................................................................................................5
1.2 Scope.............................................................................................................................5
1.3 System Requirements....................................................................................................5
1.4 VERIPOS Helpdesk .......................................................................................................5
1.5 Enabling the LD8 for VERIPOS services........................................................................6
1.6 Terms and Abbreviations................................................................................................7
1.7 Document Conventions..................................................................................................8
1.7.1 Typographical Conventions .....................................................................................8
1.7.2 Special Notices........................................................................................................8
1.8 Waste Electrical and Electronic Equipment....................................................................9
1.9 Disclaimer ....................................................................................................................10
2. Hardware Overview...........................................................................................................11
2.1 Overview and Description.............................................................................................11
2.2 LEDs ............................................................................................................................11
2.2.1 PWR LED..............................................................................................................11
2.2.2 GNSS LED ............................................................................................................11
2.2.3 LOG LED...............................................................................................................12
2.3 Interface Panel Connections ........................................................................................13
2.3.1 Coaxial ..................................................................................................................13
2.3.2 Data Cables...........................................................................................................13
3Ethernet and WebUI Connection......................................................................................14
3.1 Ethernet........................................................................................................................14
3.2 WebUI Connection.......................................................................................................14
4Configuration and Operation ...........................................................................................15
4.1 WebUI Overview ..........................................................................................................15
4.1.1 Command Sending via WebUI Terminal................................................................16
4.1.2 Saving Changes ....................................................................................................16
4.2 L-band Configuration....................................................................................................17
4.2.1 Selecting Auto Beam.............................................................................................17

Introduction
LD8 Operations Manual AB-V-MA-00635_RevA2 3
4.2.2 Selecting a Single Beam........................................................................................17
4.2.3 Entering a Custom Beam Frequency.....................................................................18
4.2.4 Tracked L-band Beam and Signal Strength Status................................................18
4.3 Activation and Deactivation of VERIPOS Services.......................................................19
4.3.1 Checking Unit Activation Status.............................................................................19
4.3.2 Checking Unit ID and Activation Service Code......................................................19
4.4 Calculation Configuration .............................................................................................20
4.4.1 PPP Mode Selection..............................................................................................20
4.4.2 SBAS.....................................................................................................................20
4.5 Ethernet Configuration..................................................................................................21
4.5.1 Checking IP and Subnet Status.............................................................................21
4.5.2 Setting a Static IP..................................................................................................21
4.5.3 Changing IP to DHCP............................................................................................21
4.6 Output Configuration ....................................................................................................22
4.6.1 Enabling Message Outputs....................................................................................22
4.6.2 Disabling Message Outputs...................................................................................22
4.6.3 GGA Precision Selection .......................................................................................23
4.6.4 PPP DQI................................................................................................................23
4.6.5 Setting Baud Rates................................................................................................23
4.6.6 PPS.......................................................................................................................23
4.7 Input Configuration.......................................................................................................24
4.7.1 Inputting External VERIPOS RTCM.......................................................................24
4.7.2 Inputting RTK Corrections .....................................................................................24
4.8Rolling Log ...................................................................................................................25
4.8.1 Accessing Rolling Log ...........................................................................................25
4.8.2 Downloading Logs.................................................................................................25
5Reference Information......................................................................................................26
5.1 Commands List Index...................................................................................................26
5.2 LD8 Output Sentences.................................................................................................27
5.2.1 NMEA Talker IDs...................................................................................................27
5.2.2 GGA Sentence ......................................................................................................28
5.2.3 GST Sentence.......................................................................................................29

Introduction
LD8 Operations Manual AB-V-MA-00635_RevA2 4
5.2.4 ZDA Sentence.......................................................................................................29
5.2.5 GSA Sentence.......................................................................................................30
5.2.6 GSV Sentence.......................................................................................................30
5.2.7 GLL Sentence........................................................................................................31
5.2.8 VTG Sentence.......................................................................................................31
5.2.9 GRS Sentences.....................................................................................................32
5.2.10 RMC Sentences ....................................................................................................33
5.2.11 HDT Sentences.....................................................................................................33
5.2.12 VERIPOS UKOOA Sentences...............................................................................34
6Contact Information..........................................................................................................36
6.1 VERIPOS Helpdesk Details..........................................................................................36
Appendix ..................................................................................................................................37
L-band Coverage Map.........................................................................................................37

Introduction
LD8 Operations Manual AB-V-MA-00635_RevA2 5
1.INTRODUCTION
This document provides the information required to operate a VERIPOS LD8 receiver.
It will help to have the following items available when consulting this document:
•VERIPOS 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 constellation, multi frequency tracking
•Simultaneously track up to 3 VERIPOS correction service satellites
•ALIGN® GNSS heading solution
•Supports RTK operation
•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 VERIPOS
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 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 [e-mail], 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 AB-V-MA-00635_RevA2 6
1.5 ENABLING THE LD8 FOR VERIPOS 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 Helpdesk are unable to activate any equipment unless an active SAL exists, and its reference number
can be determined.

Introduction
LD8 Operations Manual AB-V-MA-00635_RevA2 7
1.6 TERMS AND ABBREVIATIONS
AC Alternating Current
APEX VERIPOS high accuracy positioning solution
GNSS Global Navigation Satellite System
DHCP Dynamic Host Configuration Protocol
DP Dynamic Positioning
DQI Differential Quality Indicator
EU European Union
IP Internet Protocol
IPv4 Internet Protocol Version 4
LAN Local Area Network
LED Light Emitting Diode
L-BAND Method of transmitting correction data to mobile users
LD8 VERIPOS receiver containing combined L-band and GNSS card
NMEA National Marine Electronics Association
PPP Precise Point Positioning
PPS Pulse Per Second
PSN Product Serial Number
PWR Power
RJ45 A physical network interface standard used in telecommunications
RTK Real Time Kinematic
SAL Service Access License
SBAS Satellite Based Augmentation System
SMA SubMiniature version A
TCP Transmission Control Protocol
UAL User Accuracy Level
UI User Interface
ULTRA VERIPOS high accuracy position solution
USB Universal Serial Bus
VDC Volts Direct Current
VOSS VERIPOS Online Support System
WAAS Wide Area Augmentation System
WebUI Web User Interface
WEEE Waste Electrical and Electronic Equipment

Introduction
LD8 Operations Manual AB-V-MA-00635_RevA2 8
1.7 DOCUMENT CONVENTIONS
1.7.1 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.
1.7.2 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 AB-V-MA-00635_RevA2 9
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 AB-V-MA-00635_RevA2 10
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, please contact us at: [e-mail].
VERIPOS accepts no responsibility for any damage or injury to any system, ship or personnel caused by
drawings, instructions or procedures not prepared by VERIPOS.
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 © 2019 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.

Hardware Overview
LD8 Operations Manual AB-V-MA-00635_RevA2 11
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 LD8has five LED indicators to communicate theLD8receiver 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:
2.2.1 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
2.2.2 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 AB-V-MA-00635_RevA2 12
2.2.3 LOG LED
State
Description
Off
LD8is connectedto a computer as a mounteddevice
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 AB-V-MA-00635_RevA2 13
2.3 INTERFACE PANEL CONNECTIONS
This section details the antenna and data connectivity available from the LD8 interface panel.
2.3.1 COAXIAL
The LD8 interface panel is fitted with two SMA antenna connectors labelled ANT1 and ANT2:
Interface panel of LD8 with two SMA antenna connectors
•The combined L-band and GNSS 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
2.3.2 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:

Ethernet and WebUI Connection
LD8 Operations Manual AB-V-MA-00635_RevA2 14
3 ETHERNET AND WEBUI CONNECTION
The LD8 supports Ethernet (10Base-T/100Base-TX) for configuration and interfacing to other vessel systems.
The Ethernet port supports IPv4 Internet layer and TCP/IP transport.
3.1 ETHERNET
A PC or laptop with an Ethernet port and an up-to-date version of Chrome, Firefox or Internet Explorer is
required to configure the LD8 for operation. Internet Explorer comes 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 AB-V-MA-00635_RevA2 15
4 CONFIGURATION AND OPERATION
There are two ways in which the LD8 can be configured; via the WebUI or by using a licensed version of the
VERIPOS Quantum software. It is recommended to use Quantum (see the Quantum User Manual) if available.
It is not recommended to use both the Quantum program and the WebUI at the same time. If Quantum is not
available, configuration must be performed through the WebUI terminal application, which requires commands
to be entered and issued to the unit. This section details the commands required to perform LD8 system
configuration via the terminal.
4.1 WEBUI OVERVIEW
Once connected to the LD8 via Ethernet and the WebUI has been loaded, the user will be presented with
information relating to the receiver status. The LD8 WebUI displays status information relating to the behaviour
of the system. There are further sections available when scrolling down the page which provide limited
information and functionality.
POSITION
CONSTELLATION
TRACKING
Information related to the calculated
position is displayed, providing
calculation status, latitude,
longitude, height and differential
age.
This section displays a polar plot,
showing GNSS satellites currently
being tracked. Each satellite can be
clicked on to display elevation,
azimuth and signal strength details
(scrolling may be required to see
this information).
The Tracking section does not
presently display any information of
note.

Configuration and Operation
LD8 Operations Manual AB-V-MA-00635_RevA2 16
4.1.1 COMMAND SENDING VIA WEBUI TERMINAL
The LD8 can be configured by using terminal
commands. The WebUI provides a terminal which can
be used for sending commands and receiving status
information from the unit.
The WebUI terminal can be accessed by clicking on
the settings cog ( ) found at the top-right of the main
WebUI page, followed by clicking the sidebar terminal
icon, as highlighted in the right-hand image.
Commands can be entered into the top input bar and
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 one of trigger 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.
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.
NOTE
For ease of use commands previously sent via the current terminal session can be found by
clicking within the top input bar and hitting the up and down keyboard keys.
4.1.2 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 use of a save
command these changes will be lost in the event of a power cycle.
There is one command used for saving network changes and another that is used for saving all other changes.
Once either of the below commands have been sent an acknowledgment response should be received:
Command
Description
SAVEETHERNETDATA
Saves any Ethernet configurations
SAVECONFIG
Saves all settings excluding Ethernet configurations

Configuration and Operation
LD8 Operations Manual AB-V-MA-00635_RevA2 17
4.2 L-BAND CONFIGURATION
Tracking of a L-band beam is required to receive VERIPOS service correction data. This section will detail how
to establish and confirm successful L-band tracking in order to make use of VERIPOS services.
4.2.1 SELECTING AUTO BEAM
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
requirement to switch beam selection 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. If a single beam is selected this will disable the Auto
Beam selection and the user will need to select a beam.
To enable the use of Auto Beam enter the following:
ASSIGNLBANDBEAM AUTO
4.2.2 SELECTING A SINGLE BEAM
The receiver allows for selection of a single L-band beam. VERIPOS have six available beams as detailed
below and in most regions more than one beam should be available at all times. A global map with a beam
overlay can be found in the Appendix.
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
POR
East Asia, Australasia, Alaska
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.
The format for assigning a specific L-band beam is as follows:
ASSIGNLBANDBEAM BEAM NAME

Configuration and Operation
LD8 Operations Manual AB-V-MA-00635_RevA2 18
4.2.3 ENTERING A CUSTOM BEAM FREQUENCY
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
4.2.4 TRACKED L-BAND BEAM AND SIGNAL STRENGTH STATUS
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

Configuration and Operation
LD8 Operations Manual AB-V-MA-00635_RevA2 19
4.3 ACTIVATION AND DEACTIVATION OF VERIPOS SERVICES
To activate or deactivate VERIPOS services, firstly ensure that the LD8 is switched on and tracking a L-band
beam with a healthy signal level (>36.5 dB). Tracking of a L-band beam is required as activation and
deactivation requests are sent via the beam.
Email the VERIPOS Helpdesk with the unit ID, vessel name, organisation, vessel 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.
4.3.1 CHECKING UNIT ACTIVATION STATUS
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
4.3.2 CHECKING UNIT ID AND ACTIVATION SERVICE CODE
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 AB-V-MA-00635_RevA2 20
4.4 CALCULATION CONFIGURATION
There are a number of 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.
4.4.1 PPP MODE SELECTION
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
4.4.2 SBAS
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.
The SBAS positioning mode can be enabled by entering:
SBASCONTROL ENABLE AUTO
The SBAS positioning mode can be disabled by entering:
SBASCONTROL DISABLE