Javad LGG100 User manual

LGG100
Operator’s Manual
© Copyright Javad Navigation Systems, Inc.
August, 2006
All contents in this manual are copyrighted by JNS. All rights reserved.
The information contained herein may not be used, accessed, copied,
stored, displayed, sold, modified, published, or distributed, or otherwise
reproduced without express written consent from JNS.

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TABLE OF CONTENTS 1
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Terms and Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Community of Europe Compliance . . . . . . . . . . . . . . . . . . . . .x
FCC Class B Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . .x
Canadian Emissions Labeling Requirements . . . . . . . . . . . . . xi
Screen Captures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
GPS Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Calculating Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
GPS Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Receiver Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
LGG100 Accessory Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

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TABLE OF CONTENTS
Getting to Know Your LGG100 . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Internal Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Receiver Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
External Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Option Authorization File (OAF) . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Chapter 2. Setup and Measuring . . . . . . . . . . . . . . . . . 2-1
Powering the LGG100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Connecting the LGG100 and a Computer . . . . . . . . . . . . . . . . . 2-2
Establishing an RS232 Cable Connection . . . . . . . . . . . . . . 2-2
Establishing a PCView Connection . . . . . . . . . . . . . . . . . . . 2-2
LGG100 Receiver Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
DGPS Measuring with the LGG100 . . . . . . . . . . . . . . . . . . . . . . 2-5
Setting up an DGPS Base Station . . . . . . . . . . . . . . . . . . . . 2-5
Setting up an DGPS Rover . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Chapter 3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Checking an OAF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Loading OAFs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Clearing the NVRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Using PCView to Clear NVRAM . . . . . . . . . . . . . . . . . . . . 3-5
Checking Firmware Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Loading New Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Chapter 4. Troubleshooting . . . . . . . . . . . . . . . . . . . . .4- 1
Things to Check First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

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TABLE OF CONTENTS
Receiver Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Obtaining Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
E-mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Appendix A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Creating Scripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Appendix B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1
General Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1
GPS Board Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-3
Connector Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .B-4
Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-4
Serial RS-232C Connector . . . . . . . . . . . . . . . . . . . . . . .B-5
GPS External Antenna RF Connector . . . . . . . . . . . . . . .B-5
Appendix C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
General Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1
Usage Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
Appendix D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Warranty Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

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LIST OF FIGURES 1
LGG100 Receiver ......................................................... 1-2
LGG100 Front Panel .................................................... 1-8
PCView Main Window ................................................ 2-3
RS-232 Connection Parameters .................................... 2-4
PCView Connection Established .................................. 2-4
Receiver Configuration – Positioning .......................... 2-6
Base Tab Configuration ................................................ 2-7
Base Configuration – Ports ........................................... 2-7
Port output setup ........................................................... 2-8
Rover Tab Configuration .............................................. 2-9
Rover Configuration – Ports ......................................... 2-10
Tools->Receiver Options ............................................. 3-2
Option Manager ............................................................ 3-3
Load OAF ..................................................................... 3-4
Tools->Clear NVRAM ................................................. 3-5
Help->About ................................................................. 3-5
About PCView ............................................................. 3-6
Floader Main Screen .................................................... 3-7
Set Device Type ........................................................... 3-7
Program Tab Settings ................................................... 3-8
Power Connector .......................................................... B-4
RS-232C Connector ..................................................... B-5

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PREFACE 1
Thank you for purchasing this product. The materials available in this Manual
(the “Manual”) have been prepared by Javad Navigation Systems, Inc. (“JNS”)
for owners of JNS products. It is designed to assist owners with the use of the
LGG100 and its use is subject to these terms and conditions (the “Terms and
Conditions”).
Notice: Please read these Terms and Conditions carefully.
Terms and Conditions
PROFESSIONAL USE – JNS receivers are designed to be used by a
professional. The user is expected to have a good knowledge and understanding
of the user and safety instructions before operating, inspecting or adjusting.
Always wear the required protectors (safety shoes, helmet, etc.) when operating
the receiver.
COPYRIGHT – All information contained in this Manual is the intellectual
property of, and copyrighted material of JNS. All rights are reserved. You may
not use, access, copy, store, display, create derivative works of, sell, modify,
publish, distribute, or allow any third party access to, any graphics, content,
information or data in this Manual without JNS' express written consent and
may only use such information for the care and operation of your LGG100. The
information and data in this Manual are a valuable asset of JNS and are
developed by the expenditure of considerable work, time and money, and are
the result of original selection, coordination and arrangement by JNS.

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PREFACE
Terms and Conditions
TRADEMARKS – LGG100™, JNS® and Javad Navigation Systems™ are
trademarks or registered trademarks of JNS. Windows® is a registered
trademark of Microsoft Corporation. Product and company names mentioned
herein may be trademarks of their respective owners.
DISCLAIMER OF WARRANTY – EXCEPT FOR ANY WARRANTIES IN
THIS MANUAL OR A WARRANTY CARD ACCOMPANYING THE
PRODUCT, THIS MANUAL AND THE LGG100 ARE PROVIDED “AS-IS.”
THERE ARE NO OTHER WARRANTIES. JNS DISCLAIMS ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR USE OR PURPOSE. JNS AND ITS DISTRIBUTORS
SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR
OMISSIONS CONTAINED HEREIN; NOR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING,
PERFORMANCE OR USE OF THIS MATERIAL OR THE LGG100. SUCH
DISCLAIMED DAMAGES INCLUDE BUT ARE NOT LIMITED TO LOSS
OF TIME, LOSS OR DESTRUCTION OF DATA, LOSS OF PROFIT,
SAVINGS OR REVENUE, OR LOSS OF THE PRODUCT'S USE. IN
ADDITION, JNS IS NOT RESPONSIBLE OR LIABLE FOR DAMAGES OR
COSTS INCURRED IN CONNECTION WITH OBTAINING SUBSTITUTE
PRODUCTS OR SOFTWARE, CLAIMS BY OTHERS, INCONVENIENCE,
OR ANY OTHER COSTS. IN ANY EVENT, JNS SHALL HAVE NO
LIABILITY FOR DAMAGES OR OTHERWISE TO YOU OR ANY OTHER
PERSON OR ENTITY IN EXCESS OF THE PURCHASE PRICE FOR THE
LGG100.
LICENSE AGREEMENT – Use of any computer programs or software
supplied by JNS or downloaded from a JNS website (the “Software”) in
connection with the LGG100 constitutes acceptance of these Terms and
Conditions in this Manual and an agreement to abide by these Terms and
Conditions. The user is granted a personal, non-exclusive, non-transferable
license to use such Software under the terms stated herein and in any case only
with a single LGG100 or single computer. You may not assign or transfer the
Software or this license without the express written consent of JNS. This license
is effective until terminated. You may terminate the license at any time by
destroying the Software and Manual. JNS may terminate the license if you fail
to comply with any of the Terms or Conditions. You agree to destroy the
Software and manual upon termination of your use of the LGG100. All

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PREFACE
Terms and Conditions
ownership, copyright and other intellectual property rights in and to the
Software belong to JNS. If these license terms are not acceptable, return any
unused software and manual.
CONFIDENTIALITY – This Manual, its contents and the Software
(collectively, the “Confidential Information”) are the confidential and
proprietary information of JNS. You agree to treat JNS' Confidential
Information with a degree of care no less stringent that the degree of care you
would use in safeguarding your own most valuable trade secrets. Nothing in this
paragraph shall restrict you from disclosing Confidential Information to your
employees as may be necessary or appropriate to operate or care for the
LGG100. Such employees must also keep the Confidentiality Information
confidential. In the event you become legally compelled to disclose any of the
Confidential Information, you shall give JNS immediate notice so that it may
seek a protective order or other appropriate remedy.
WEBSITE; OTHER STATEMENTS – No statement contained at the JNS
website (or any other website) or in any other advertisements or JNS literature
or made by an employee or independent contractor of JNS modifies these Terms
and Conditions (including the Software license, warranty and limitation of
liability).
SAFETY – Improper use of the LGG100 can lead to injury to persons or
property and/or malfunction of the product. The LGG100 should only be
repaired by authorized JNS warranty service centers. Users should review and
heed the safety warnings in “Safety Warnings” on page C-1.
MISCELLANEOUS – The above Terms and Conditions may be amended,
modified, superseded, or canceled, at any time by JNS. The above Terms and
Conditions will be governed by, and construed in accordance with, the laws of
the State of California, without reference to conflict of laws.

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PREFACE
Regulatory Information
Regulatory Information
The following sections provide information on this product's compliance with
government regulations.
Community of Europe Compliance
Hereby, Javad Navigation Systems, declares that this receiver is in compliance
with the essential requirements and other relevant provisions of Directive 1999/
5/EC and Articles 4(a), 4(b) of the EMC Directive 89/336 EEC.
The LGG100 also complies with requirements of EN 55022 (1998-09)+A1
(2000-10)+A2 (2003-01).
FCC Class B Compliance
This device complies with Part 15 of the FCC rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference
that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC rules. These limits are designed
to provide reasonable protection against harmful interference in residential
installations. This equipment generates, uses, and can radiate radio frequency
energy, and if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation.
If this equipment does cause interference to radio or television equipment
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
• Reorient or relocate the receiving antenna.
• Move the equipment away from the receiver.
• Plug the equipment into an outlet on a circuit different from that to which the
receiver is powered.

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PREFACE
Regulatory Information
• Consult the dealer or an experienced radio/television technician for
additional suggestions.
WARNING: Any changes or modifications to the equipment not
expressly approved by the party responsible for
compliance could void your authority to operate such
equipment.
Canadian Emissions Labeling Requirements
This Class B digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du
Réglement sur le matériel brouilleur du Canada.
Screen Captures
This manual includes sample screen captures. Your actual screen can look
slightly different from the sample screen due to the receiver you have
connected, operating system used and settings you have specified. This is
normal and not a cause for concern.
Manual Conventions
This manual uses the following conventions:
Example Description
File->Exit Click the File menu and click Exit
Enter Press or click the button or key labeled Enter.
Tip: Supplementary information that can help you to
configure, maintain, or set up a system.
Notice: Supplementary information that can have an affect on
system operation, system performance, measurements,
or personal safety.

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PREFACE
Regulatory Information
CAUTION: Notification that an action has the potential to
adversely affect system operation, system
performance, data integrity, or personal health.
WARNING: Notification that an action will result in system
damage, loss of data, loss of warranty, or personal
injury.
D ANGER : UNDER NO CIRCUMSTANCES SHOULD THIS ACTION BE
PERFORMED.

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INTRODUCTION 1
This chapter provides an overview of the LGG100, including its features and
physical elements. In addition, a brief description of the principals of GPS
operation is presented. This information is split into the following sections:
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Receiver Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
LGG100 Accessory Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Getting to Know Your LGG100 . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Option Authorization File (OAF) . . . . . . . . . . . . . . . . . . . . . . . . 1-9

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INTRODUCTION
Overview
1
Overview
Javad Navigation System's LGG100 is a single frequency, GNSS receiver built
to be advanced and compact receiver for the navigation market (Figure 1-1).
Figure 1-1. LGG100 Receiver
The LGG100 can receive and process L1 signal. The GNSS component of
LGG100 receivers means you can access both the GPS (Global Positioning
System) satellites of the United States, and the GLONASS (Global Navigation
Satellite System) satellites of the Russian Federation, increasing the number of
satellites your receiver can detect, thus improving the accuracy of your
measuring points, increasing productivity, and reducing cost.

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INTRODUCTION
Principles of Operation
Principles of Operation
The measuring with the right GPS receiver can provide users accurate and
precise positioning, a requirement for any measuring project.
This section gives an overview of GPS and receiver functions to help you
understand and apply GPS principles, allowing you to get the most out of your
receiver.
GPS Overview
The Global Positioning System (GPS) is a satellite-based, line-of-sight
radio navigation system run by the United States Department of Defense
(DoD). This system offers a global, all weather, 24-hour positioning,
velocity, and time service to any user equipped with a GPS tracking
receiver, who is on or near the Earth’s surface. The Global Navigation
Satellite System (GLONASS) is the Russian Federation Ministry of
Defense counterpart to GPS. At any one time, with a standard 15 degree
angle, up to 10 or 12 GPS satellites are visible from any point on earth.
When a receiver can also track GLONASS satellites, between 10 and 16
satellites are visible.
For information on the current status of the GPS constellation, visit
http://tycho.usno.navy.mil/ or http://www.navcen.uscg.gov/.
For GLONASS, visit http://www.glonass-center.ru/frame.html.
Despite numerous technical differences in the implementation of these
systems, both GPS and GLONASS have three essential components:
• Space – GPS and GLONASS satellites orbiting approximately 12,000
nautical miles above Earth and are equipped with a clock and radio.
These satellites broadcast digital information (ephemerides, almanacs,
time frequency corrections, etc.).
• Control – Ground stations located around the Earth that monitor the
satellites and upload data, including clock corrections and new
ephemerides (satellite positions as a function of time), to ensure the
satellites transmit data properly.
• User – The community and military that use GPS/GLONASS receivers
and the corresponding satellites to calculate positions.

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INTRODUCTION
Principles of Operation
1
Calculating Positions
Once the receiver locks on to a satellite, it starts recording
measurements and receiving various digital information (ephemeris,
almanac, and so on) the satellites broadcast. To calculate a position,
receivers use the following formula:
Velocity x Time = Distance
Where Velocity is the speed at which radio waves travel (i.e., the speed
of light) and Time is the difference between the signal transmission
time and signal reception time.
To calculate absolute 3-D positions – latitude, longitude, altitude – the
receiver must lock on to four satellites. In a mixed, GPS and
GLONASS scenario, receiver must lock onto at least five satellites to
obtain an absolute position.
To provide fault tolerance using only GPS or only GLONASS, the
receiver must lock onto a fifth satellite. Six satellites will provide fault
tolerance in mixed scenarios. Usually, the number of GPS and
GLONASS satellites in view does not exceed twenty (20).
Once locked on to a satellite, the receiver collects ephemerides and
almanacs, saving this information to its NVRAM (Non-Volatile RAM).
• GPS and GLONASS satellites broadcast ephemeris data cyclically,
with a period of 30 seconds.
• GPS satellites broadcast almanac data cyclically with a period of
12.5 minutes; GLONASS satellites broadcast almanac data
cyclically with a period of 2.5 minutes.
GPS Positioning
Achieving quality position results requires the following three
elements:
• Accuracy – The accuracy of a position depends upon the number,
signal integrity, and placement (also known as Dilution of
Precision, or DOP) of satellites.
–Differential GPS (DGPS) strongly mitigates atmospheric and
orbital errors.
–The more satellites in view, the stronger the signal, the lower the
DOP number, providing more accurate positioning.

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INTRODUCTION
Receiver Overview
• Availability – The availability of satellites affects the calculation of
valid positions. The more visible satellites available, the more valid
and accurate the position. Natural and man-made objects can block,
interrupt, and weaken signals, lowering the number of available
satellites.
• Integrity – Fault tolerance allows a position to have greater
integrity, increasing accuracy. Several factors combine to provide
fault tolerance, including:
–Receiver Autonomous Integrity Monitoring (RAIM) detects faulty
GPS and GLONASS satellites and removes them from the position
calculation.
–Wide Area Augmentation System (WAAS) and European
Geostationary Navigation Overlay Service (EGNOS) creates and
transmits DGPS correction messages.
–Five or more visible satellites for only GPS or only GLONASS;
six or more satellites for mixed scenarios.
–Current ephemerides and almanacs.
–Several algorithms to detect and correct faulty information.
Conclusion
GNSS users can use JNS GNSS receivers to collect data from a network
of satellites and control stations to triangulate precise points anywhere
on Earth.
This overview simply outlines the basics of GPS and GLONASS
positioning. For more detailed information, visit the JNS website
(http://www.javad.com).
Receiver Overview
When power is turned on and the receiver self-test completes, the receiver’s 50
channels initialize and begin tracking visible GNSS satellites. Each of the
receiver’s channels can be used to track C/A-L1 and Carrier signals. The
number of channels available allows the receiver to track all visible satellites at
any time and location.

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INTRODUCTION
LGG100 Accessory Kit
1
Once the signal is locked in the channel, it is demodulated and necessary signal
parameters (carrier and code phases) are measured. In addition, broadcast
navigation data are retrieved from the navigation frame.
After the receiver locks on to four or more satellites, it is possible to solve the
so-called “absolute positioning problem” and compute the receiver’s
coordinates (in WGS-84 or another datum) and time. All this information can be
downloaded through the port onto a computer and processed using a post-
processing software package.
Depending on your options, capabilities of the receiver include:
• Multipath reduction
• Wide Area Augmentation System (WAAS) and European Geostationary
Navigation Overlay Service (EGNOS)
• Differential GPS (DGPS) measuring modes
• Setting different mask angles
• Setting different measuring parameters
LGG100 Accessory Kit
Unpack the kit contents and check all the items thoroughly. If any item included
is damaged or missing, get in touch with your dealer as quickly as possible. The
contents of the standard accessory kit contain:
•Cables
•Software
• Literature
Cables
Standard LGG100 accessories include the following cables:
• Receiver-to-computer RS232 serial cable
• Receiver-to-SAE power cable
• SAE-to-SAE cable extension
• Power supply with SAE connector