SeaSTAR 3510LR User manual

SeaSTAR 3510LR USER MANUAL
Issue
1.0 11/04
3510LR
User Manual
Issue 1.0, November 2004

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Notice to Customers
This manual has been produced to ensure the very best performance from your
OmniSTAR receiver. The manual has been clearly set out with simple instructions
to ensure trouble free usage of your OmniSTAR receiver.
This publication could contain technical inaccuracies or typographical errors.
Changes are periodically made to the information herein; these changes will be
incorporated in new editions of the manual.
Should you require further assistance please contact your local dealer or the
OmniSTAR Perth office.
OmniSTAR Customer Support and 24 Hour Help Line
OmniSTAR Pty Ltd
18 Prowse Street
West Perth 6005
Western Australia
Contact Numbers
Office: [phone]
Network Control Centre (NCC): [phone] (24 hours)
Freecall –24 hours: 1800 062 221
Fax Numbers
Office: [phone]
Network Control Centre: [phone]
World Wide Web
Internet Address: www.omnistar.com.au
Email address: [email protected]

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Dealer Information
Name _____________________________
Address _____________________________
City _____________________________
State _____________________________
Post Code _____________________________
Country _____________________________
Phone _____________________________
Fax _____________________________
Email _____________________________

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One-Year Limited Hardware Warranty
OmniSTAR Pty Ltd and its operating companies world-wide (OmniSTAR),
warrants this product to be free from defects in workmanship and material for a
period of one year from the date of original sale by OmniSTAR or its authorised
dealers, to the original purchaser or end user.
OmniSTAR reserves the right to repair and/or replace, at its option, any part or
parts found to be defective, provided such defects, in their opinion, are due to
faulty material or workmanship and are not caused by unauthorised or improper
repair or abuse, or normal wear. Purchaser shall be responsible for shipping and
insurance of the returned product for repair under this warranty. OmniSTAR will
pay shipping and insurance for the product's return to purchaser provided that the
product returned proves to be defective under this limited warranty.
This warranty applies only to normal usage of the product. It does not apply to
units or electronic circuit boards defective due to improper installation or handling.
Physical damage due to lightning or other electrical discharge and units subjected
to fresh or salt-water contamination are not covered. OmniSTAR reserves the right
not to warrant the product if, upon request, sufficient proof of recommended
installation compliance as laid out in this manual is not provided. No other
warranties are expressed or implied. No other warranties exist.
OmniSTAR assumes no responsibility for any consequential or incidental losses
or damages of any nature with respect to the use of this product.
REVISION HISTORY
Issue 1.0 November 2004 First Issue
Manual Reference: 3510LR User Manual
Copyright OmniSTAR Pty Ltd 2004. No part of this manual can be reproduced
without the express permission of OmniSTAR Pty Ltd.

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TABLE OF CONTENTS
INTRODUCTION....................................................................................................1
ABOUT THIS MANUAL...........................................................................................1
SYSTEM FEATURES..............................................................................................1
3510LR GETTING STARTED...............................................................................3
INITIAL SETUP......................................................................................................3
MODES OF OPERATION SETUP ........................................................................5
MODEL 3510LR /RTCM MODE SETUP................................................................5
MODEL 3510LR /VBS OR VRC MODE SETUP.....................................................6
RECEIVER INTERFACES....................................................................................7
POWER................................................................................................................7
ANTENNA.............................................................................................................8
DATA ...................................................................................................................8
COMMAND ...........................................................................................................8
INSTALLATION...................................................................................................11
INSTALLATION CONSIDERATIONS........................................................................11
ELECTRICAL GROUNDING REQUIREMENTS.........................................................11
COUNTER ELECTROMAGNETIC FORCE (CEMF) .................................................12
CABLE INSTALLATION.........................................................................................13
ANTENNA LOCATION...........................................................................................14
TECHNICAL SPECIFICATIONS.........................................................................15
MENUS AND DISPLAYS....................................................................................17
POWER ON MENUS............................................................................................18
ABOUT MENU.....................................................................................................19
VBS STATUS MENU ...........................................................................................20
CURRENT CHANNEL MENU.................................................................................21
SET CHANNEL MENU..........................................................................................22
CONFIGURE OUTPUT MENU................................................................................23
CONFIGURE PORTS MENU .................................................................................24
ACRONYMS USED IN THIS MANUAL ..............................................................25
APPENDIX A........................................................................................................27
CARE OF PORTABLE BATTERIES ........................................................................27
APPENDIX B........................................................................................................29
RECEIVER SERVICE PROCEDURE.......................................................................29

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APPENDIX C.......................................................................................................31
OMNISTAR RECEIVER TOOLKIT........................................................................31
APPENDIX D.......................................................................................................41
OMNISTAR RECEIVER PROBLEM REPORT FORM..............................................41
USER NOTES.....................................................................................................42

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INTRODUCTION
About This Manual
This manual has been produced to assist the typical user with the installation and
operation of the 3510LR DGPS Receiver.
System Features
The 3510LR DGPS Receiver is a component part of the Fugro world-wide DGPS
Service. The Fugro service is a full-time differential GPS (DGPS) broadcast
system delivering corrections from an array of GPS reference stations located
around the globe. Reference stations provide industry standard formatted
corrections to Network Control Centres (NCC’s) at strategic geographic locations,
where the corrections are decoded, checked, and repackaged in a highly efficient
format for broadcast. The data is modulated onto a RF carrier that is then up-
converted for transmission to an L-band communications satellite.
The signals are received at the user's location by an antenna, demodulated by a
receiver, and are made available, after selection of the desired individual reference
site's data set, as corrections for use in a GPS, differential-capable, receiver.
The 3500 series of receivers support the following OmniSTAR® services:
1. Virtual Base Station where the data from multiple reference stations is used
in processor software to produce enhanced corrections for the user's
location. The resulting corrections are restructured as RTCM SC-104
version 2 corrections for direct application to a user's receiver.
2. Virtual Reference Cell, where the data from multiple reference stations is
used in processor software to produce enhanced corrections for an
optimised reference Cell. The resulting corrections are restructured as
RTCM SC-104 version 2 corrections for direct application to a user's receiver
or an internal Receiver.
3. DGPS Services Stand alone differential GPS, where corrections from one
selected site are extracted from the incoming data stream and are
reformatted to an industry standard Format, RTCM SC-104.

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3510LR GETTING STARTED
The purpose of this section is to get you started with the 3510LR as quickly as
possible. The guide will address receiving the satellite data carrier, and then
checking the functionality of the external GPS engine if fitted. We would ask you to
quickly review the menu section of this manual, the menus are navigated by the
Arrow buttons on the front panel, changes to options are made with the Up/Down
keys, and items are entered using the centre key.
Generally when the receiver is supplied to you it will be configured for the mode
and data link(s) you have subscribed to. In most cases to get up and running will
be a case of connecting the appropriate cables and applying power to the system.
Initial Setup
Figure 1. Bare Rear View of 3000L
1. Refer to the following diagrams as you will need to assemble all the required
items.
•3510LR DGPS Receiver
•DGPS Antenna
•DGPS Antenna Cable
•GPS Antenna cable if supplied
•Power Cable
•Data Port Cable
•Power Supply
•External GPS

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2. Install the DGPS antenna where it has a clear view of the sky in the direction
of the satellite, refer to the NCC in your region for an azimuth/elevation chart
for the satellite service you have subscribed to.
3. Connect the DGPS antenna cable between the DGPS antenna and the
3510LR (Antenna connector on rear panel).
4. Connect the power cable to a suitable 10-32V DC power supply being sure to
check correct polarity. This will power on the unit.
5. If you have an external GPS, you can run a cable from the “GPS” connector
(if installed) to your GPS receiver instead of having two antennas.
6. It is now time to make the 3510LR Receiver acquire the DGPS signal. This
can be done in one of 3 ways:
a). By selecting the service directly in the Set Channel menu (see Set
Channel menu explanation).
b). By entering the frequency and symbol rate directly in the Set Channel
Menu (see Set Channel menu explanation).
c). Using Toolkit as explained in Appendix C.
For options a & b the receiver will indicate that it is starting and frequency
searching by display Init on the main display screen and finally Lock when it has
locked to the signal, in addition a signal strength will be indicated by a bar graph
display. Should the lock indicator not be displayed after 30 –50 seconds, check
through steps 1 to 6 above.

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MODES OF OPERATION SETUP
Set the receiver to the required mode (either RAW, RTCM, VRC or VBS). Some
modes may not be available depending upon the security setting. Generally the
receiver will be set to the correct mode prior to delivery to you, and will not be
changeable.
Model 3510LR / RTCM Mode Setup
•If the 3510LR is operating in RTCM mode the Single Reference Station
RTCM data will appear on the Data port, this port will need to be set up to
match the requirements of your GPS receiver RTCM IN port, use the
Configure Ports –Set Data Port menu item to set these.
•Use Toolkit to set these. When using the 3510LR with an external GPS
receiver only one RTCM station should be selected. An RS-232C data tester
can be used to test for data output, the TX data line should flash every 3-4
seconds.
Figure 2. 3510LR Operating in RTCM Mode
3510LR
Receiver
GPS
Receiver
Laptop Computer
(Configuration & Maintenance)
DGPS Antenna
DC Power Supply
Data
Power
DGPS
Data/Command

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Model 3510LR / VBS or VRC Mode Setup
In this mode a composite set of RTCM corrections is computed from the GPS
network data sent over the link. The following information is required to compute
these corrections; time (supplied via the link), GPS almanac data (supplied via the
link), and receiver location either entered via Toolkit or from an external GPS
receiver interfaced via the Data port. When the unit is first supplied, or not
used for a long period of time, or moved a large distance between use it
may take up to 40 minutes to start outputting RTCM corrections.
•If the 3510LR is operating in VBS/VRC mode the RTCM data will appear on
the Data port, this port will need to be set up to match the requirements of
your GPS receiver RTCM IN/NMEA out port, Configure Ports –Data Port
menu item to set these.
•For the VBS or VRC operation the 3510LR needs to be supplied with a
position for the area of operation, this can be supplied automatically from an
external GPS receiver or manually via Toolkit. If using an external GPS input
the GPS receiver must be set up to output $xxGGA NMEA format position
telegrams in addition to any other required message types. The NMEA data
is input via the Data port, therefore the port parameters must match those set
for the RTCM data output, see the set up details for this port above.
Figure 3. 3510LR operating in VBS or VRC Mode
3510LR
Receiver
GPS Receiver
Laptop Computer
(Configuration & Maintenance)
DGPS Antenna
DC Power Supply
AUX Port
Power
DGPS
Data/Command

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RECEIVER INTERFACES
Power
The 3510LR will operate on any DC Voltage between 10V and 32V DC. When
operational, the unit dissipates 4W of power.
The power input has reverse polarity protection. However, as the negative terminal
is also attached to the housing ground, large currents can flow to any ground
attachments made to the housing. Reverse polarity must therefore be avoided to
prevent damage to the vehicle supply.
At Voltages below 10V the unit will reset itself to prevent any data loss. At
Voltages below 6V the receiver will turn itself off.
Power is connected to the unit via a 2 metre long, black sheath, red & black 2-core
cable. The cable is terminated with a 3-pin Switchcraft EN3C3F female connector.
The connector pin layout is illustrated in Figure 4.
Figure 4. Pin layout of Switchcraft EN3C3F Female Connector
The Switchcraft EN3C3F connector is terminated as follows:
Pin 1 + DC voltage (red)
Pin 2 Not connected
Pin 3 –DC voltage (black)
Pin 1
Pin 2
Pin 3

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Antenna
Antenna connection is made via a 5 metre RG58 low loss cable,
which is terminated with a standard TNC 50-ohm male connector.
If two antennae are supplied, each antenna will have its own cable.
An antenna unit has an internal LNA (low noise amplifier) which is typically
powered by 5V DC. When the 3510LR is powered up, this voltage is present at
the antenna socket on the rear panel. Therefore, care must be taken not to
connect or disconnect an antenna when power is on.
Data
The Data port is a standard DB9 female socket. The external GPS is plugged into
this port. A laptop computer may also be plugged into the Data Port to view the
RTCM output.
Pin Number Signal
1
2TXD2
3RXD2
4
5GND2
6
7
8
9
Table 1. Data Port Pin Assignment
A special Data cable is supplied, terminated as shown in the Figure below.
DB9 Male
Pin number 2 metre cable DB9 Female
Pin number
2--------------- 2
3--------------- 3
5--------------- 5
Warning: Do NOT use standard RS232 cables.
Command
The Command port is a standard DB9 female socket. Receiver configuration
(OmniSTAR 3500L board) can be carried out via this port by plugging in a laptop
computer with ‘Toolkit’ software.

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The pin assignment for the Command port is shown in Table 2.
Pin Number Signal
1
2TXD1
3RXD1
4
5GND1
6
7
8
9
Table 2Command Port Pin Assignment

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INSTALLATION
Installation Considerations
Before commencing installation of the 3510LR in a vehicle or aircraft, the following
should be considered :
•Determine the preferred location for each unit. Consider cable length,
connector attachment space (cable bend radius), stowing excess cable,
moisture, chemical corrosion, vibration and heat exposure.
•Before drilling holes, consider using existing hardware and locations
where equipment was previously installed. Avoid drilling holes that may
damage other equipment (e.g. structural frame members, electrical cables
or fluid lines).
•High vibration and high temperature locations should be avoided
whenever possible.
•In application where vibration exceeds 4Gs acceleration, shock mounts
are required. (Refer to Customer support for mounting recommendations).
•Vehicle primary power has voltages that may be harmful to personnel and
equipment. Disconnect the battery cable from the battery –ve (negative)
terminal before making connection to any power terminal within the
vehicle.
Electrical Grounding Requirements
The 3510LR requires a vehicle chassis connection that is a perfect ground. There
should be a zero ohm reading between the receiver power socket –ve (negative)
input and the point where the vehicle battery –ve (negative) terminal is connected
to ground.

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Counter Electromagnetic Force (CEMF)
A potential problem inherent in any installation of electronic systems within a
vehicle is Counter Electro-magnetic Force (CEMF).
CEMF is caused when relays or solenoids, connected to the vehicle DC power
distribution, are de-energised. The voltage produced may exceed –400 volts.
CEMF is produced by equipment such as the following:
•Electric fan brakes
•Air conditioners
•Starter relays
•Electric pump relays
CEMF is more than sufficient to damage or cause erratic operation of any
electronic system that is also connected to the same vehicle DC power supply.
CEMF can be eliminated by installing diodes at the relays and solenoids that
cause the problem, and more importantly at the power supply cable connections
on the receiver.
A 47V, 5W, Zener diode (1N5368 or equivalent) should be connected between the
receiver +ve (positive) power input terminal and ground, as illustrated in Figure 5.
Figure 5. Zener Diode Connected
Ground
Battery +ve (positive) supply
Zener Diode