Sokkia GSR2700 IS Installation manual

GPS Receiver System
GSR2700 IS
Operations Manual


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GPS Receiver System
GSR2700 IS
Operations Manual
Part Number 750-1-0055 Rev 0D

We welcome written communications regarding our products at:
POINT, Inc. 16900 West 118th Terrace, Olathe, Kansas 66061 U.S.A.
We strive to provide the highest quality documentation and welcome your
feedback. If you have comments or suggestions about our online or printed
questions, contact Technical Support (see Section 1.8, Obtaining Technical
Assistance, page 9).
22 SEP 2005
750-1-0055 Rev 0D
Copyright Notice
© 2005 POINT, Inc. All rights reserved.
Do not reproduce, translate, store in a retrieval system, or transmit in any
form or means (electronic, photocopy, record, or otherwise) without prior
written permission from POINT, Inc. The copyright laws of the United States
of America (“U.S.A.”) and/or the jurisdiction where you are located
determine any limits or restrictions of your rights with regard to this
publication and the equipment.
Trademark Notice
SOKKIA® and Spectrum® are registered trademarks of SOKKIA Co. Ltd.
SDR® is a registered trademark of POINT, Inc. The Bluetooth® word mark
and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by
POINT, Inc. is under license. Pulse Aperture Correlator (PAC)™ and
Pinwheel™ are trademarks of NovAtel Inc. All other product and brand
names are trademarks or registered trademarks of their respective holders.
GSR2700 IS FCC and CE Notice
This receiver complies with the radiated and conducted emission limits for a
Class B digital device, for both CISPR 22 and part 15 of the FCC Rules. These
limits 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 the receiver; connect the
equipment into an outlet on a circuit different from that to which the receiver
is connected; or consult the dealer or an experienced radio/TV technician for
help.
IMPORTANT! To maintain compliance with the limits of a Class B digital device, you
must use properly shielded interface cables (Belden #9539 or equivalent) when you use
the serial data ports, and double-shielded cables (Belden #9945 or equivalent) when
you use the I/O strobe port.
WARNING! Changes or modifications to this equipment not expressly approved by
POINT, Inc. could result in a violation of Part 15 of the FCC Rules.

Errata
GSR2700 IS Operations Manual Errata xxx-x-xxxx Rev 0A
GSR2700 IS Operations Manual
The GSR2700 IS Operations Manual covers the components, function, setup, and
operation of the GSR2700 IS receiver. This errata document includes a correction to
the GSR2700 IS Operations Manual (Rev 1, part number 750-1-0055) discovered since
publication of the manual. This change is not included in the present manual.
GSR2700 IS FCC and CE Notice
Replace the GSR2700 IS FCC and CE Notice located at the beginning of the manual
(on the back of the title page) with the following:
This device complies with CISPR 22 Class B.
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.
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 and correct the interference by one or more of the following
measures: a) reorient or relocate the receiving antenna; b) increase the separation
between the equipment and the receiver; c) connect the equipment into an outlet on a
circuit different from that to which the receiver is connected; or d) consult the dealer
or an experienced radio/TV technician for help.
IMPORTANT! To maintain compliance with the limits of a Class B digital device,
you must use properly shielded interface cables (Belden #9539 or equivalent) when
you use the serial data ports, and double-shielded cables (Belden #9945 or equivalent)
when you use the I/O strobe output.
WARNING! Changes or modifications to this equipment not expressly approved by
POINT, Inc. could result in a violation of Part 15 of the FCC Rules and void the user’s
authority to operate this equipment.
RF Exposure: This device exceeds the FCC requirements for RF exposure when the
antenna used for this transmitter has a separation distance of at least 20 cm from all
persons.

GSR2700 IS Operations Manual i
Chapter 1 Introduction 1
1.1 About the GSR2700 IS .............................................1
1.2 Features ...................................................................2
1.3 System Components ................................................3
1.4 Usage Cautions ........................................................6
1.5 Icons .........................................................................7
1.6 Document Conventions ............................................8
1.7 Finding More Information..........................................8
1.8 Obtaining Technical Assistance ...............................9
Chapter 2 GSR2700 IS Components 10
2.1 Enclosure Features ................................................10
2.2 Ports .......................................................................12
2.2.1 Antenna port....................................................... 13
2.2.2 Power port and power input ............................... 14
2.2.3 Communication ports ......................................... 14
2.3 Cables ....................................................................14
2.4 Batteries .................................................................15
2.5 Memory...................................................................16
2.6 GPS Antenna..........................................................16
2.7 Internal Radio .........................................................17
2.8 Wireless Communication ........................................17
2.9 Display Panel..........................................................18
2.10 Audible Annunciator ...............................................18
Chapter 3 Display Panel Operations 19
3.1 Power Button ..........................................................20
3.2 Status Indicators.....................................................22
3.2.1 Receiver health .................................................. 23
Contents

Contents
ii GSR2700 IS Operations Manual
3.2.2 COM port communication status ........................24
3.2.3 Wireless communication status..........................25
3.2.4 Internal radio status............................................26
3.3 Gauges................................................................... 27
3.3.1 Battery life gauge................................................27
3.3.2 Satellite tracking gauge ......................................28
3.3.3 Memory gauge....................................................29
3.3.4 Occupation timer gauge .....................................30
3.4 Audible Annunciator ............................................... 31
Chapter 4 System Setup 34
4.1 Setting Up at the Office .......................................... 34
4.2 Setting Up for Field Operations.............................. 35
4.2.1 Typical RTK rover setup.....................................35
4.2.2 Typical RTK base setup .....................................37
4.2.3 Typical static setup.............................................40
Chapter 5 Basic Operations 42
5.1 Turning the System On and Off ............................. 42
5.2 Power Source......................................................... 42
5.2.1 Internal batteries.................................................42
5.2.2 External power source........................................43
5.3 Powering Peripheral Devices ................................. 44
5.4 Power Consumption............................................... 44
5.5 Insufficient Power................................................... 45
5.6 Charging the Internal Batteries .............................. 46
5.7 Operation Overview ............................................... 46
Chapter 6 Collecting Data 48
6.1 How Data is Stored ................................................ 48
6.2 Data Collection Methods ........................................ 48
6.2.1 Handheld data collection ....................................48
6.2.2 Logging to the internal memory .......................... 49

Contents
GSR2700 IS Operations Manual iii
6.3 Defining Data to be Collected.................................49
6.3.1 About the POWERUP configuration................... 49
6.3.2 Default POWERUP configuration....................... 50
6.3.3 Transferring a POWERUP configuration............ 52
6.4 Data File Naming....................................................53
6.5 Data Storage Capacity ...........................................54
6.6 Resetting the Receiver ...........................................54
Appendix A Technical Specifications 55
Glossary 61
Index 69

iv GSR2700 IS Operations Manual
1GSR2700 IS Feature Summary ......................................... 2
2Icon Summary .................................................................... 7
3Port Summary .................................................................. 13
4Display Panel Components .............................................. 19
5Power Button Functions ................................................... 21
6COM Port Communication Status LEDs........................... 24
7Wireless Communication Status LEDs............................. 25
8Internal Radio Status LEDs .............................................. 26
9Battery Life Gauge Indicators ........................................... 28
10 Satellite Tracking Gauge Indicators ................................. 29
11 Memory Gauge Indicators ................................................ 29
12 Occupation Timer Gauge Indicators................................. 30
13 Audible Annunciator Conditions ....................................... 32
14 POWERUP Configurations............................................... 51
15 Auto-Generated File Name Convention ........................... 53
16 Hours of Storage with 64 MB Logging Capacity............... 54
17 GSR2700 IS Technical Specifications.............................. 55
Tables

Figures
GSR2700 IS Operations Manual v
1Standard System Components: RTK Rover .......................4
2Standard System Components: RTK Base.........................5
3Optional Components .........................................................5
4GPS Antenna and Display Panel ......................................10
5Ports..................................................................................11
6Mounting Socket and Phase Center Offset Label.............11
7Wireless Communication Antenna....................................12
8Ports and Labels ...............................................................12
9Internal Radio Antenna .....................................................13
10 GPS Antenna ....................................................................16
11 Display Panel Components...............................................19
12 Power Button Functions....................................................21
13 Typical RTK Rover Setup .................................................36
14 Typical RTK Base Setup (internal radio)...........................38
15 Typical RTK Base Setup (external radio)..........................38
16 Typical Static Setup ..........................................................40
Figures


Chapter 1
GSR2700 IS Operations Manual 1
Introduction
This manual provides complete information about your GSR2700
IS (integrated system) and its functions, including components,
system setup, operations, and data collection.
1.1 About the GSR2700 IS
The Sokkia GSR2700 IS is a fully integrated, high-precision GPS
solution for use in both RTK and post-processing applications. It
integrates a dual-frequency receiver, antenna, memory, batteries,
wireless connectivity, and differential correction radio into one
lightweight and rugged component.
The GSR2700 IS supports wireless connections, using Bluetooth®
wireless technology. The ability to transfer your data from the
receiver to the data collector through a wireless communication
connection provides a completely cable free option.
The GSR2700 IS offers differential correction transmission
flexibility, using either an internal UHF or GSM radio. It also
offers the innovative feature of voice messages to indicate
receiver status during field operation.
Surveyors can use the GSR2700 IS for topographic, stake out, and
control surveys. Excellent acquisition and reacquisition times
mean this receiver continues to excel in environments where
signal obstructions are present and frequent interruptions of
signals can be expected. The GSR2700 IS features a rugged design
for use in adverse environments, and is engineered to provide
years of reliable operation.
You can use the GSR2700 IS handheld component (SDR+) and
desktop post-processing software (Spectrum®Survey Suite) with
the GSR2700 IS. When used together, these components provide a
powerful, flexible, and easy-to-use GPS system.

2 GSR2700 IS Operations Manual
Chapter 1 Introduction
1.2 Features
The GSR2700 IS is capable of the following modes of operation:
• Static post-processing
• Stop-and-go kinematic post-processing
• RTK base operation
• RTK rover operation
• Navigation
• Differential GPS
GSR2700 IS features are summarized in Table 1. For detailed
technical information, see Appendix A, Technical Specifications,
page 55.
Table 1: GSR2700 IS Feature Summary
General
Rugged, shock resistant, waterproof, buoyant enclosure
Bluetooth wireless technology
Capability to log data to internal memory
Low power consumption
Patented Pulse Aperture Correlator™ (PAC) technology for high accuracy GPS
measurement and multipath rejection
Two bidirectional communication ports that can transfer data at rates up to
460,800 bps (serial via COM1), 115,200 bps (serial via COM2), and 1 Mbps
(USB via COM2)
Full wavelength L1 and L2 GPS carrier measurements
Ionospheric corrections in position calculations
2 Input/Output strobe signals: mark input (position & time), 1PPS timing output
Fast reacquisition
Peripheral power supply output to COM1 and COM2
Optional internal UHF or GSM/GPRS radio for differential correction
transmission or reception
LED display status indicators
Voice messages or sounds to indicate receiver status
Can receive SBAS corrections (WAAS/EGNOS)
64 MB internal memory standard. Options up to 2 GB available.

GSR2700 IS Operations Manual 3
Introduction Chapter 1
1.3 System Components
When you receive your GSR2700 IS system, ensure you have
received all of the components for your specific configuration
(rover or base).
Standard rover components are illustrated in Figure 1, Standard
System Components: RTK Rover, page 4. Standard base
components are illustrated in Figure 2, Standard System
Components: RTK Base, page 5.
NOTE System components are illustrated with the assumption that an
internal radio is being used.
Output Data Log Formats
Proprietary ASCII and binary
CMR Standard: CMR, CMR+
NMEA Standard: GPGGA, GPGLL, GPGRS, GPGSA, GPGST, GPGSV,
GPRMB, GPRMC, GPVTG, GPZDA
RTCM V2.3 Standard: Types 1, 2, 3, 9, 16, 18/19, 20/21, 22, 59FKP, 59N
RTCM V3.0 Standard: Types 1001–1006
RTCA Standard: Types 1, 7
NTRIP protocol support for RTK
Maximum Data Logging Rates (per second)
Computed Data: Position, speed, direction, & clock offset = 20
Measured Data (Observations): Pseudorange & carrier phase = 20
Table 1: GSR2700 IS Feature Summary (continued)

4 GSR2700 IS Operations Manual
Chapter 1 Introduction
Figure 1: Standard System Components: RTK Rover
GPS Receiver
AC Adapter PC Download Cable (USB)
Tape Measure
Quick Release
Internal Radio Antenna
Hard Case
Manual
GPS Receiver System
GSR2700 IS
Operations Manual

GSR2700 IS Operations Manual 5
Introduction Chapter 1
Figure 2: Standard System Components: RTK Base
Figure 3 illustrates optional components that you may also wish
to use with your system.
Figure 3: Optional Components
GPS Receiver
AC Adapter PC Download Cable (USB)
Tape Measure
Quick Release
Tribrach & Tribrach Adapto
r
Internal Radio Antenna
Hard Case
Manual
GPS Receiver System
GSR2700 IS
Operations Manual
PC Download Cable (Serial)
External Battery
External Battery Cable
Data Collector
Data Collector Mounting Bracket

6 GSR2700 IS Operations Manual
Chapter 1 Introduction
1.4 Usage Cautions
CAUTION
• If your receiver has an internal radio, always ensure that the
radio antenna is properly connected to your receiver before
turning the unit on. Never disconnect the radio antenna
while the internal radio is still powered. Removal of the
antenna while the unit is powered may cause irreparable
damage to the internal circuitry of your radio, particularly
when the radio is transmitting information.
• This device incorporates circuitry to absorb most static
discharges. However, severe static shock may cause
inaccurate operation of the unit. Use anti-static precautions
where possible.
• This device is a precision instrument. Although it is
designed for rugged operating conditions, it performs best
when handled with care.
• When the port covers are closed, the enclosure is sealed to
provide protection against adverse environmental
conditions. To minimize the possibility of damage, always
keep the ports covered except when in use.
• The GSR2700 IS can accept an input supply voltage in the
range of +9 to +18 VDC. Do not operate the receiver
outside the specified voltage range.
• Drawing more than the specified maximum current (1 amp
combined total) from the two COM ports will cause an
internal fuse to interrupt the current to prevent damage to
the unit. If this happens, immediately reduce the load and
allow the unit to automatically reset its protection circuitry.

GSR2700 IS Operations Manual 7
Introduction Chapter 1
1.5 Icons
The GSR2700 IS uses the display panel and port icons
summarized in Table 2.
Table 2: Icon Summary
Icon Meaning Description & Task
Display Panel LEDs
Battery life Identifies the gauge that displays the available
internal and external battery power.
Satellite
tracking Identifies the gauge that displays the number of
satellites currently being tracked by the receiver.
Memory Identifies the gauge that displays the available
storage space in the internal memory.
Occupation
timer Identifies the gauge that displays the static
occupation timer.
Bluetooth
communication
status
Identifies the Bluetooth communication status
indicators.
Internal radio
status Identifies the internal radio status indicators.
COM status Identifies the COM port status indicators.
Ports
PWR Identifies the power port on the underside of the
GSR2700 IS.
COM1,
COM2 Identifies the COM1 and COM2 ports on the
underside of the GSR2700 IS.
Radio antenna Identifies the internal radio antenna connector on
the underside of the GSR2700 IS.

8 GSR2700 IS Operations Manual
Chapter 1 Introduction
1.6 Document Conventions
This manual uses notes and cautions to stress important
information.
NOTE A note contains text that further explains information in the
previous paragraph.
1.7 Finding More Information
This manual provides the information you need to use the
GSR2700 IS. The following documents provide supporting
documentation:
•Planning Reference Manual. Describes how to use Planning
software to help determine satellite availability, as well as
information about setting the POWERUP configuration for the
GSR2700 IS.
•Spectrum Survey Reference Manual. Provides information
about processing and adjusting your data using Spectrum
Survey.
•SDR+ User’s Guide. Describes how to use the SDR+ data
collection software.
CAUTION
A caution provides information about
possible sources of difficulty or situations
that may cause damage to the product.

GSR2700 IS Operations Manual 9
Introduction Chapter 1
1.8 Obtaining Technical Assistance
Technical support is available from the distributor where you
purchased this product. When you contact technical support,
please make sure you have the following information:
• Your receiver information, including: serial number, part
number, model, firmware version, and internal radio
information
• A concise description of the problem
For a list of SOKKIA worldwide offices, see the list at the back of
this manual.
Table of contents
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