Page 1
Leica SR20
User Manual
Version 1.0
English
Page 2
Introduction
Leica SR20
Congratulations on your purchase of a new Leica
SR20.
This manual contains important safety
directions (refer to chapter "Safety
directions") as well as instructions for
setting up the product and operating it.
Read carefully through the User Manual before you switch
on the product.
Product identification
The model and the serial number of your product are indicated on the typeplate.
Enter the model and serial number in your manual and
always refer to this information when you need to contact
your agency or authorized service workshop.
GPS Receiver Type: _______Serial No.: _______
Software-Version V: _______Build: _______
External Antenna Type: _______Serial No.: _______
Symbols
The symbols used in this User Manual have the following
meanings:
DANGER:
Indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.
WARNING:
Indicates a potentially hazardous situation or an
unintended use which, if not avoided, could result in
death or serious injury.
CAUTION:
Indicates a potentially hazardous situation or an
unintended use which, if not avoided, may result in
minor or moderate injury and / or appreciable material, financial and environmental damage.
Important paragraphs which must be adhered to in
)
practice as they enable the product to be used in a
technically correct and efficient manner.
Trademarks
• Windows (registered trademark of Microsoft Corporation)
• Bluetooth (registered trademark of Bluetooth SIG, Inc.)
All other trademarks are the property of their respective
owners.
Introduction
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View of chapters
1. General Information .................................................................... 5
2. Description of the System.......................................................... 7
3. Hardware and Software Setup ................................................. 11
4. Care and Transport ................................................................... 14
5. Safety Directions....................................................................... 16
6. Technical Data........................................................................... 28
Leica SR20 User Manual-1.0.0en
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View of chapters
Page 4
Table of Contents
1. General Information.................................5
The Leica SR20....................................................... 6
Overview of the User Manual .................................. 6
2. Description of the System.......................7
Unpacking the SR20 Standard Package ................. 7
GPS Receiver.......................................................... 8
Receiver Hardware.................................................. 8
Charge the Batteries ........................................ 9
Set Up the Equipment .................................... 10
Post-processing software ............................... 10
3. Hardware and Software Setup ..............11
Introduction............................................................ 11
Receiver Hardware................................................ 12
Leica SR20 Sensor ........................................ 12
Powering Up the Unit............................................. 13
4. Care and Transport................................14
Transport ............................................................... 14
Storage .................................................................. 14
Cleaning and drying............................................... 15
5. Safety Directions ...................................16
Intended use of product ........................................ 16
Permitted uses ............................................... 16
Adverse uses ................................................. 16
Limits of use .......................................................... 17
Responsibilities ..................................................... 17
International Warranty, Software License
Agreement............................................................. 18
Hazards of use ...................................................... 19
Main hazards of use....................................... 19
Electromagnetic Compatability (EMC) .................. 24
FCC statement (applicable in U.S.)....................... 26
6. Technical Data ....................................... 28
Table of Contents
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1. General Information
For decades, Leica Geosystems has enjoyed a worldwide
technological lead in the manufacture of classical
surveying instruments and systems. Starting in 1987, Leica
Geosystems established a close business relationship with
Magnavox's commercial GPS business unit for the design
and construction of GPS surveying sensors. This culminated into Leica Geosystems acquisition of the Magnavox
GPS business unit in 1994. With this purchase, the
unbroken chain of impressive "firsts" now incorporated the
field of satellite navigation and positioning technology.
Magnavox was one of the first pioneers in this arena,
playing a leading role in the development of GPS and its
predecessors. Further acquisition of the Philips Ap Navigator business in 1997 widened Leica Geosystems
product palette to an even greater extent.
Leica Geosystems offers an entire product basket of GPS
receivers. This includes receivers designed for Land
Surveying, GIS, Machine Control, Monitoring and various
other applications. The SR20 GPS receiver allows the user
the maximum in flexibility. The SR20 GPS receiver can be
used as a high accuracy Land Surveying device, a
powerful GIS data collector, or even a Reference Station.
The SR20 is packaged with the Leica Geo Office software.
This software is also extremely flexible with it’s ability to
accept data from a variety of Leica receivers including: total
stations, levels, and GPS.
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General Information
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The Leica SR20
The Leica SR20 GPS receiver was designed to provide the
Land Surveying community with a reliable, rugged and
accurate GPS receiver that is also flexible enough to fit
both sub-meter and centimeter accurate land surveying
requirements. The Leica SR20 represents a true turnkey
GPS solution by integrating the GPS receiver and antenna
within the chassis of a handheld data collector. You will find
the SR20 is extremely easy to use and yet has the all the
power you would expect out of a Leica GPS receiver.
Overview of the User Manual
The User Manual is intended to provide information
concerning setup, safety, storage and technical data of the
SR20 and accessories. For additional information on the
use and operation of the SR20, please refer the SR20
"Getting Started Guide" (provided separately). For information concerning the use and interaction between Leica Geo
Office and the SR20, please refer to the Leica Geo Office
online help system.
General Information
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2. Description of the System
Unpacking the SR20 Standard Package
Take the product out of the transport case and check that it is complete:
1 SR20 Handheld GPS Receiver
2 SR20 Soft Case
3 GEB90 Battery, Li-Ion, 7.2V
4 Dual-Bay Battery Charger
5 Data Transfer Cable, SR20 to
RS232
6 SR20 Antenna Cable
7 AT501 Antenna
8 SR20 Getting Started Guide
9 Leica SR20 User Manual
10 Leica Geo Office Software CD
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Description of the System
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GPS Receiver
The GPS Receiver receives the GPS signal from the
NAVSTAR satellites and calculates a range to all visible
satellites.
The Leica SR20 is a 12-channel L1 code and phase handheld GPS receiver for professional data mapping.
Receiver Hardware
In most cases, a short introduction in the use of the
Receiver will be provided by the local Leica Geosystems
representative.
Also refer to the SR20 "
Getting Started
Guide."
See section "
Technical Data
Description of the System
".
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Charge the Batteries
Your Leica SR20 is powered by a rechargeable 7.2 V, LiIon battery.
The battery can be charged and discharged hundreds of
times but it will eventually wear out. When the operation
time is noticeably shorter than normal, it is time to buy a
new Leica Geosystems GEB90 Li-Ion Battery.
One battery, fully charged, will power the SR20 for about 7
hours continuously. Operating times will be shorter when
working in cold weather.
Primary use/charging
• The battery must be charged prior to using it for the first
time because it is delivered with an energy content as
low as possible.
• For new batteries or batteries that have been stored for
a long time (> three months), you should take the
battery through one complete charge/discharge cycle.
• For Li-Ion batteries, a single discharging and charging
cycle is sufficient. We recommend carrying out the
process when the battery capacity indicated on the
charger or on a Leica Geosystems product deviates
significantly from the actual battery capacity available.
• The permissible temperature range for charging is
between 0°C to +40°C/ +32°F to +104°F. For optimal
charging we recommend charging the batteries at a low
ambient temperature of +10°C to +20°C/+50°F to +68°F
if possible.
• It is normal for the battery to become warm during
charging. Using the chargers recommended by Leica
Geosystems, it is not possible to charge the battery if
the temperature is too high.
Operation/Discharging
• The batteries can be operated from -20°C to +55°C/
-4°F to +131°F.
• Low operating temperatures reduce the capacity that
can be drawn; very high operating temperatures reduce
the service life of the battery.
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Description of the System
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Set Up the Equipment
For best performance, GPS data collection requires undisturbed satellite signal reception. This means GPS
Receivers work best in locations which are free of obstructions.
Press and release the Power Button located on lower left
of the keyboard. The unit will reply with an audible tone,
then proceed to a splash screen and then to the Main
Menu.
Your Leica SR20 is now fully ready for operation.
Post-processing software
The Post-processing software is used to process the
observations taken by the Receiver in order to compute
baselines and coordinates.
Leica Geo Office software is the standard post-processing
software for the SR20 GPS receiver. Please refer to the
"Getting Started Guide" and the Leica Geo Office onlinehelp system for further details.
Description of the System
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3. Hardware and Software Setup
Introduction
“Hardware and Software Setup” is designed to help get the
beginning user up and running with their new Leica SR20.
For more information about setup, features and operations
of the Leica SR20, please refer to the “SR20 Getting
Started Guide".
The Leica Geosystems GIS solution is composed of both
hardware and software components.
The hardware consists of the Leica SR20 sensor. This is
used in the field to collect data. The software consists of
Leica Geo Office.
Hardware
Leica SR20
Antenna
Total
Solution
Software
Leica Geo Office
The Leica Geo Office software package provides powerful
GPS post-processing tools. This software can be used for
static or kinematic processing. The Leica Geo Office can
also be used to process data from many other Leica
Geosystems products.
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Hardware and Software Setup
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Leica Geo Office Post-processing software
Receiver Hardware
Leica Geo Office is used for data post processing. Please
refer to the “Getting Started Guide” for more details.
To install the Leica Geo Office software:
1 Insert the CD-ROM into the CD drive of your PC.
2 Execute the “Setup” command.
3 Follow the instructions that appear on the screen.
A hardware user manual can be found on the CD in PDF
format. Additionally, the software contains a comprehensive online Help System.
After data is collected in the field, Leica Geo Office allows
you to import, edit and export the data to your CAD system.
The software can also be used to design codelists which
allow you to customize the field data collection process to
suit your needs. To learn more about Leica Geo Office,
consult the “SR20 Getting Started Guide" and the online
help.
Leica SR20 Sensor
The Leica SR20 is a GPS receiver designed for static data
collection. The GPS receiver receives the GPS signal from
the NAVSTAR satellites and calculates a range to all
visible satellites.
The Leica SR20 is a 12-channel L1 code and phase GPS
receiver. Phase measurement recording can be used for
post processing to achieve the highest accuracy possible.
Phase measurements can also be used internally to
smooth pseudorange measurements for increased accuracy code positioning.
The standard external antenna for the SR20 is the AT501.
The AT501 antenna tracks both the code and phase measurements on the L1 frequency. The SR20 also has an
internal antenna that can be used in handheld operations.
Please refer to the "Getting Started Guide" for the use of
your Leica SR20 equipment.
Hardware and Software Setup
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Powering Up the Unit
The SR20 operates on a single battery. Once a battery is
fully charged, you are ready to power up the SR20.
1. Open the SR20 Battery door
by turning the door latch 90
degrees counterclockwise,
and pull open the battery
door.
2. Place the battery in the well
with the gold contacts facing
down and making contact.
3. Shut the battery door and
return the latch to the locked position with the spin
arrow facing upward toward the dot on the housing.
4. On the keypad, depress the Power Button
in the Lower Left corner. Startup will be
followed by an audible tone, then after a
memory check (2 to 3 seconds) the SR20
Splash Screen will be followed by the Main Menu.
5. Once the Main Menu appears, the receiver will begin to
search and acquire satellites.
Make sure that the SR20 has a clear view of the sky!
)
Initially the GPS unit will not have an Almanac (The
almanac is a library of satellite orbits that helps the GPS
locate the satellites more quickly). When using the unit for
the first time, or after a long period without use, it may take
several minutes to acquire a position; this is known as a
“Cold Start”.
Please refer to the SR20 Getting Started Guide for
)
information on basic functions and data collection.
Leica SR20 User Manual-1.0.0en
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Hardware and Software Setup
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4. Care and Transport
Transport
When dispatching the equipment, always use the
)
complete original Leica Geosystems packaging
(case and cardboard box).
When transporting the equipment in the field, always
make sure that you:
• either carry the product in its original transport case
• or carry the tripod with its legs splayed across your
shoulder, keeping the attached product upright.
Never carry the product loose in a road vehicle. It can be
affected by shock and vibration. Always carry it in its case
and secure it.
When transporting the equipment by rail, air or ship,
always use the complete original Leica Geosystems packaging (case and cardboard box), or its equivalent, to
protect it against shock and vibration.
When transporting or shipping batteries, the person in
charge of the product must ensure that the applicable
national and international rules and regulations are
observed. Before transportation or shipping, contact your
local passenger or freight transport company.
Storage
Temperature limits
)
(-40°C to +70°C / -40°F to +158°F)
Respect the temperature limits when storing the
equipment, particularly in summer if the equipment
is inside a vehicle.
Li-Ion batteries
)
• Refer to "Environmental Specifications" for information
about storage temperature range.
• A storage temperature range of -20 to +30°C/-4 to 68°F
in a dry environment is recommended to minimize selfdischarging of the battery.
• At the recommended storage temperature range,
batteries containing a 10% to 50% charge can be stored
for up to one year. After this storage period, the
batteries must be recharged.
• Remove batteries from the product and the charger
before storing.
• After storage, recharge batteries before using.
• Protect batteries from damp and wetness. Wet or damp
batteries must be dried before storing or use.
Care and Transport
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Cleaning and drying
Use only a clean, soft, lint-free cloth for cleaning.
)
If necessary, moisten the cloth with pure alcohol.
Use no other liquids; these may attack the polymer components.
Damp products must be unpacked. Dry the product,
)
the case, the foam inserts and the accessories at not
more than 40°C / 108°F and clean them. Do not
repack until everything is completely dry.
Cables and plugs
)
Keep plugs clean and dry. Blow away any dirt lodged
in the plugs of the connecting cables. Unplugging
connecting cables or removing the memory card
during the measurement may cause loss of data.
Always switch off the product before removing the
cables or the memory card.
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Care and Transport
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5. Safety Directions
The following directions should enable the person responsible for the product, and the person who actually uses the
equipment, to anticipate and avoid operational hazards.
The person responsible for the product must ensure that all
users understand these directions and adhere to them.
Intended use of product
Permitted uses
The product is intended for the following applications:
• Measuring and computing coordinates using P-code
and/or C/A-code signals from NAVSTAR GPS satellites
• Carrying out measurement tasks using various GPS
measuring techniques
• Recording GPS and point related data
• Computation and evaluation by means of software
• Data transfer via internal radio (BLUETOOTH) for real-
time surveys
• Data transfer via internal radio (BLUETOOTH) for up
and download of projects, coordinate systems, and
configurations
Adverse uses
• Use of the product without instruction
• Use outside of the intended limits
• Disabling safety systems
• Removal of hazard notices
• Opening the product using tools (screwdriver, etc.),
unless this is specifically permitted for certain functions
• Modification or conversion of the product
• Use after misappropriation
• Use with accessories from other manufacturers without
the prior express approval of Leica Geosystems
• Inadequate safeguards at the measuring station (e.g.
when measuring on roads)
WARNING:
Adverse use can lead to injury, malfunction and
damage. It is the task of the person responsible for
the equipment to inform the user about hazards and
how to counteract them. The product is not to be
operated until the user has been instructed how to
work with it.
Safety Directions
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Limits of use
See chapter "Technical Data".
Environment:
Suitable for use in an atmosphere appropriate for permanent human habitation: not suitable for use in aggressive or
explosive environments.
External Antenna:
Use in rain is permissible. After long term use in this environment the External Antenna must be checked by a Leica
Geosystems service technician.
DANGER:
Local safety authorities and safety experts must be
contacted before working in hazardous explosive
areas. This would include areas in close proximity to
electrical installations or in extreme environment
conditions.
Responsibilities
Area of responsibility for the manufacturer of the original equipment Leica Geosystems AG, CH-9435 Heerbrugg (hereinafter referred to as Leica Geosystems):
Leica Geosystems is responsible for supplying the product,
including the User Manual and original accessories, in a
completely safe condition.
Responsibilities of the manufacturers of non-
)
Leica Geosystems accessories:
The manufacturers of non-Leica Geosystems accessories
for the product are responsible for developing, implementing and communicating safety concepts for their products. They are also responsible for the effectiveness of
those safety concepts in combination with the Leica
Geosystems product.
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Safety Directions
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Responsibilities of the person in charge of the equipment:
WARNING:
The person responsible for the equipment must
ensure that it is used in accordance with the instructions. This person is also accountable for the training
and deployment of personnel who use the equipment and for the safety of the equipment when in
use.
The person in charge of the product has the following
duties:
• To understand the safety instructions on the product
and the instructions in the User Manual.
• To be familiar with local regulations relating to accident
prevention.
• To inform Leica Geosystems immediately if the equipment becomes unsafe.
International Warranty, Software License Agreement
International Warranty
The International Warranty can be downloaded from the
Leica Geosystems AG home page at
http://www.leica-geosystems.com/internationalwarranty
or received from your Leica Geosystems dealer.
Software License Agreement
This product contains software that is preinstalled on the
product, or is supplied to you on a data carrier medium, or
can be downloaded by you online pursuant to prior authorization from Leica Geosystems. Such software is protected
by copyright and other laws and its use is defined and regulated by the Leica Geosystems Software License Agreement, which covers aspects such as, but not limited to,
Scope of the License, Warranty, Intellectual Property
Rights, Limitation of Liability, Exclusion of other Assurances, Governing Law and Place of Jurisdiction. Please
make sure, that at any time you fully comply with the terms
and conditions of the Leica Geosystems Software License
Agreement.
Safety Directions
Such agreement is provided together with all products and
can also be found at the Leica Geosystems AG home page
at http://www.leica-geosystems.com/swlicense
or your Leica Geosystems dealer.
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You must not install or use the software unless you have
read and accepted the terms and conditions of the Leica
Geosystems Software License Agreement. Installation or
use of the software or any part thereof, is deemed to be an
acceptance of all the terms and conditions of such License
agreement. If you do not agree to all or some of the terms
of such License agreement, you may not download, install
or use the software and you must return the unused software together with its accompanying documentation and
the purchase receipt to the dealer from whom you
purchased the product within ten (10) days of purchase to
obtain a full refund of the purchase price.
Hazards of use
Main hazards of use
WARNING:
The absence of instruction, or the inadequate
imparting of instruction, can lead to incorrect or
adverse use, and can give rise to accidents with farreaching human, material, financial and environmental consequences.
Precautions:
All users must follow the safety directions given by the
manufacturer and the directions of the person responsible
for the product.
CAUTION:
Watch out for erroneous measurements if the
product has been dropped or has been misused,
modified, stored for long periods or transported.
Precautions:
Periodically carry out test measurements and perform the
field adjustments, particularly after the product has been
subjected to abnormal use and before and after important
measurements.
WARNING:
If computers intended for use indoors are used in the
field, there is a danger of electric shock.
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Safety Directions
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Precautions:
Adhere to the instructions given by the computer manufacturer with regard to field use in conjunction with Leica
Geosystems products.
CAUTION:
If the accessories used with the equipment are not
properly secured and the equipment is subjected to
mechanical shock (e.g. blows, falling), the equipment may be damaged or people may sustain injury.
Precautions:
When setting-up the equipment, make sure that the accessories (e.g. tripod, tribrach, connecting cables) are
correctly adapted, fitted, secured, and locked in position.
Avoid subjecting the equipment to mechanical shock.
CAUTION:
The product uses the GPS P-Code signal, which by
U.S. policy, may be switched off without notice.
CAUTION:
During the transport, shipping or disposal of
batteries it is possible for inappropriate mechanical
influences to constitute a fire hazard.
Precautions:
Before shipping the product or disposing of it, discharge
the batteries by running the product until they are flat.
When transporting or shipping batteries, the person in
charge of the product must ensure that the applicable
national and international rules and regulations are
observed. Before transportation or shipping contact your
local passenger or freight transport company.
WARNING:
Using a battery charger not recommended by Leica
Geosystems can destroy the batteries. This can
cause fire or explosions.
Precautions:
Only use chargers recommended by Leica Geosystems to
charge the batteries.
WARNING:
High mechanical stress, high ambient temperatures
or immersion into fluids can cause leakage, fire or
explosions of the batteries.
Precautions:
Protect the batteries from mechanical influences and high
ambient temperatures. Do not drop or immerse batteries
into fluids.
WARNING:
Short circuited battery terminals can overheat and
cause injury or fire, for example by storing or transporting in pockets if battery terminals come in
contact with jewellery, keys, metallized paper or
other metals.
Precautions:
Make sure that the battery terminals do not come into
contact with metallic objects.
Safety Directions
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WARNING:
Inadequate securing of the survey site can lead to
dangerous situations, for example in traffic, on
building sites and at industrial installations.
Precautions:
Always ensure that the survey site is adequately secured.
Adhere to the regulations governing accident prevention
and road traffic.
DANGER:
installations, such as power cables or electrical railways.
Precautions:
Keep at a safe distance from electrical installations. If it is
essential to work in this environment, first contact the
safety authorities responsible for the electrical installations
and follow their instructions.
WARNING:
By surveying during a thunderstorm you are at risk
from lightning.
Precautions:
Do not carry out field surveys during thunderstorms.
Because of the risk of electrocution, it
is very dangerous to use poles and
extensions in the vicinity of electrical
WARNING:
During dynamic applications, for example stakeout
procedures there is a danger of accidents occurring
if the user does not pay attention to the environmental conditions around, for example obstacles,
excavations or traffic.
Precautions:
The person responsible for the product must make all
users fully aware of the existing dangers.
WARNING:
If an External Antenna is not properly fitted to vehicles or any other means for transportation it can be
torn off by mechanical shock, vibration or wind,
possibly causing accident and injury.
Precautions:
Attach the External Antenna professionally. The External
Antenna must be secured additionally, e.g. by use of a
safety cord. Ensure that the mounting device is correctly
mounted and able to safely carry the weight of the External
Antenna (>1kg).
WARNING:
If the equipment is improperly disposed of, the
following can happen:
• If polymer parts are burnt, poisonous gases are
produced which may impair health.
• If batteries are damaged or are heated strongly, they
can explode and cause poisoning, burning, corrosion or
environmental contamination.
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Safety Directions
Page 22
• By disposing of the equipment irresponsibly you may
enable unauthorized persons to use it in contravention
of the regulations, exposing themselves and third
parties to the risk of severe injury and rendering the
environment liable to contamination.
Precautions:
Dispose of the equipment appropriately in accordance with
the regulations in force in your country. Always prevent
access to the equipment by unauthorized personnel.
DANGER:
If the product is used in exposed locations (e.g. on
masts, mountains or buildings), it is at risk from lightning. Danger from high voltages also exists near
power lines. Lightning, voltage peaks, or the
touching of power lines can cause damage, injury
and death.
Precautions:
• Do not use the product in a thunderstorm as you may
increase the risk of being struck by lightning.
• Be sure to remain at a safe distance from electrical
installations. Do not use the product directly under or in
close proximity to power lines. If it is essential to work in
such an environment contact the local statutory regulatory bodies responsible for electrical installations and
follow their instructions.
• If the product has to be permanently mounted in an
exposed location, it is advisable to provide a lightning
conductor system. A suggestion on how to design a
lightning conductor for the product is given hereinafter.
• Always follow the regulations in force in your country
with regard to grounding Antennas and masts. These
installations must be carried out by an authorized
specialist.
• To prevent damages due to indirect lightning strikes
(voltage spikes), cables (antenna, power source,
modem, ...) should be protected with appropriate
protection elements (lightning arrestor). These installations must be carried out by an authorized, local
specialist.
• Additional protection against lightning:
If there is a risk of a thunderstorm, or if the equipment is
to remain unused and unattended for a long period,
protect your product additionally by unplugging all
systems components and disconnecting all connecting
cables and supply cables (e.g. Receiver - Antenna).
Safety Directions
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Suggestion for design of a Lightning Conductor for a
GPS System
1. On non-metallic structures
Protection by Air Terminals is recommended. An Air
Terminal is a pointed solid or tubular rod of conducting
material with proper mounting and connection to a
conductor. The position of 4 Air Terminals should be
uniformly distributed around the Antenna at a distance
equal to the height of the Air Terminal.
The Air Terminal diameter should be 12mm for copper or
15mm for aluminium. The height of the Air Terminals
should be 25 to 50cm. All Air Terminals should be
connected to the down conductors. The diameter of the Air
Terminal should be kept to a minimum to reduce GPS
signal shading.
Air Terminal arrangement (plan view)
2. On metallic structures
Protection is as described for non-metallic structures, but
the Air Terminals can be connected directly to the
conducting structure without the need for down conductors.
Leica SR20 User Manual-1.0.0en
1 GPS Antenna
2 Support-Structure
3 Air Terminal
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Safety Directions
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Grounding the Receiver/Antenna
1 Lightning Conductor Array
2 GPS Antenna
3 Antenna/Receiver Connection
4 Metallic Mast
5 Connection to Earth
Electromagnetic Compatability (EMC)
The term "electromagnetic compatability" is taken to mean
the capability of the product to function smoothly in an environment where electromagnetic radiation and electrostatic
discharges are present, and without causing electromagnetic disturbances to other equipment.
WARNING:
Electromagnetic radiation can cause disturbances in
other equipment.
Although the product meets the strict regulations and
standards which are in force in this respect, Leica Geosystems cannot completely exclude the possibility that other
equipment may be disturbed.
CAUTION:
There is a risk that disturbances may be caused in
other equipment if the product is used in conjunction
with accessories from other manufacturers, e.g. field
computers, personal computers, walkie-talkies, nonstandard cables, external batteries.
Precautions:
Only use equipment and accessories recommended by
Leica Geosystems. When combined with the product, they
meet the strict requirements stipulated by the guidelines
and standards.
When using computers and walkie-talkies, pay attention to
the information about electromagnetic compatability
provided by the manufacturer.
Safety Directions
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CAUTION:
Disturbances caused by electromagnetic radiation
can result in the tolerance limits for measurements
being exceeded.
Although the product meets the strict regulations and
standards which are in force in this connection, Leica
Geosystems cannot completely exclude the possibility that
the product may be disturbed by very intense electromagnetic radiation, e.g. near radio transmitters, walkie-talkies,
diesel generators.
Check the plausibility of results obtained under these
conditions.
WARNING:
If the product is operated with connecting cables
attached at only one of their two ends (e.g. external
supply cables, interface cables), the permitted level
of electromagnetic radiation may be exceeded and
the performance of other products may be impaired.
Precautions:
While the product is in use, connecting cables (e.g. product
to external battery, product to computer) must be
connected at both ends.
Use of the product with internal (BLUETOOTH) and
external Radio devices:
WARNING:
Electromagnetic radiation can cause disturbances in
other equipment, in installations (e.g. medical ones
such as pacemakers or hearing aids) and in aircraft.
It can also affect humans and animals.
Precautions:
Although the product complies with the strict regulations
and standards applicable if used with internal and external
radio devices, Leica Geosystems cannot completely
exclude the possibility that interference with other equipment may occur, or that humans or animals may be
affected.
• Do not operate the product with internal and external
Radio devices in the vicinity of filling stations or chemical installations, or in other areas where an explosion
hazard exists.
• Do not operate the product with internal and external
Radio devices near to medical equipment.
• Do not operate the product with internal and external
Radio devices in aircraft.
• Do not operate the product with internal and external
Radio devices for long periods with it immediately next
to your body.
Leica SR20 User Manual-1.0.0en
25
Safety Directions
Page 26
WARNING:
This Bluetooth transmitter must not be operating in
conjunction with any other transmitter or transmitting
antenna.
FCC statement (applicable in U.S.)
WARNING:
This equipment, including SR20 and WoRCS
(BLUETOOTH), 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 a residential installation.
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 harmful interference to radio
or television 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.
• Increase the separation between the equipment and
receiver.
• Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Safety Directions
26
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Page 27
WARNING:
Changes or modifications not expressly approved by
Leica Geosystems for compliance could void the
user's authority to operate the equipment.
Product Labeling:
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.
The label indicator is placed on the backside of the device
in the center above the battery case.
Labelling internal battery GEB90:
The label indicator is placed on the backside of the device.
Leica SR20 Art.no. 724705
Leica SR20 User Manual-1.0.0en
27
Safety Directions
Page 28
6. Technical Data
Tracking Characteristics
• Satellite Reception
Single frequency
• Receiver channels
12 L1 continuous tracking
• L1 channels
Carrier phase, C/A narrow code
• L1 Carrier Tracking
Reconstructed carrier phase via C/A code
• L1 Code Measurements
Carrier phase smoothed C/A code measurements
• Satellites Tracked
Up to 12 simultaneously on L1
Time to first phase measurement typically 30 seconds.
GPS Antennas
• AT501
Microstrip L1 antenna with built in groundplane
• RTB
Combined GPS L1/ beacon antenna
• RTS
Combined GPS L1/ L-Band antenna
Interface
• Port 1
Conformable with RS232
Lemo 7 Pin
• BLUETOOTH Specification
1. Radio:
BLUETOOTH ID GS20/SR20 .......................... B00873
BLUETOOTH ID WoRCS Module.................... B00874
Taiyo Yuden Class 2 Bluetooth module EYSF2SSXX
Nominal transmit ............ 0dBm with included antenna
Frequency range .................... from 2402 to 2480 MHz
Transmission power ......................... < 2.9 mW (e.r.p.)
Operating range .......................................... within 10m
2. Other Characteristics
Baudrate........................................................ 115.2 kps
• Baudrate
300/1200/2400/4800/7200/9600/19200/38400/57600/
115200 bps
• Data Format
Parity ....................................................none/odd/even
Data Bit .................................................................. 7;8
Stop Bits.................................................................. 1;2
Flow Control .................................................. RTC/CTS
................................................................... XON/XOFF
• WoRCS RTB Module RTB01
Beacon Module frequency range ...285.5 to 325.0 KHz
Supply Voltage ..............................................+7.2VDC
Nominal Power.................................................. 0.75 W
Technical Data
28
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Page 29
Equipment weights
• Receivers
Leica SR20 ....................................................... 0.55 kg
WoRCS RTB .................................................... 1.45 kg
USB Bluetooth Module ....................................... 0.1 kg
• Antennas
AT501 ................................................................. 0.4 kg
Power
• Supply Voltage
All equipment:................................... Nominal 7.2V DC
External: .......................................................... 12V DC
Environmental Specifications
Product Operation Storage
Leica SR20 and
WoRCS
AT501
Leica Geosystems
PC-cards, all sizes
Battery internal
• Humidity
Up to 99%, non-condensing
• Weather
Will withstand rain, snow, dust, sand etc.
-20°C to +55°C
(-4°F to 131°F)
-40°C to +75°C
(-40°F to 167°F)
-20°C to +75°C
(-4°F to 167°F)
-20°C to +55°C
(-4°F to 131°F)
-40°C to +70°C
(-40°F to 158°F)
-40°C to + 75°C
(-40°F to 167°F)
-40°C to +75°C
(-40°F to 167°F)
-40°C to +70°C
(-40°F to 158°F)
Separation distances
• Leica SR20 to AT501 RTB or RTS Antenna
Supplied cables:................................................... 1.2m
Longer cables available on request.
Baseline precision
The following specifications are based on measurements
processed using Leica Geo Office software and are given
as baseline rms (root mean square).
• Differential Phase
Operation Static Rapid Static Kinematic
10mm + 2ppm 10mm + 2ppm 20mm + 2ppm
• Differential Code
Operation Post Processing Realtime DGPS
Static
Kinematic
Baseline precision is dependent upon various
)
factors including the number of satellites tracked,
constellation geometry, observation time, ephemeris
accuracy, ionospheric disturbance, multipath and
resolved ambiguities.
30 cm 40 cm
30 cm 40 cm
Leica SR20 User Manual-1.0.0en
29
Technical Data
Page 30
Conformity to national regulations
• FCC part 15 (applicable in U.S.)
• European directive 1999/5/EC on radio equipment and
telecommunications terminal equipment (see CE
Conformity Declaration).
• The conformity for countries with other national regulations not covered by FCC part 15 or European directives 1999/5/EC has to be approved prior to use and
operation.
Frequency Range 2402 - 2480 MHz
Transmission power limited to < 2.9 mW (e.r.p.)
Antenna
Type:Internal patch antenna
Gain:2.7 dBi
Technical Data
30
Leica SR20 User Manual-1.0.0en
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Leica SR20 User Manual-1.0.0en
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Technical Data
Page 32
Leica Geosystems AG, Heerbrugg,
Switzerland, has been certified as
being equipped with a quality system
which meets the International
Standards of Quality Management and
Quality Systems (ISO standard 9001)
and Environmental Management
Systems (ISO standard 14001).
742205-1.0.0en
Printed in Switzerland - Copyright Leica Geosystems AG,
Heerbrugg, Switzerland 2004
Original text
Total Quality ManagementOur commitment to total
customer satisfaction.
Ask your local Leica
Geosystems dealer for more
information about our TQM
program.
Leica Geosystems AG
CH-9435 Heerbrugg
(Switzerland)
Phone +41 71 727 31 31
Fax +41 71 727 46 73
www.leica-geosystems.com
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