Sokkia GRX3 Operator's Manual
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Sokkia GRX3 Operator's Manual

Sokkia GRX3 Operator's Manual

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  • Page 1 GNSS Receiver Operator’s Manual...
  • Page 2 GRX3 GNSS Receiver Operator’s Manual Part Number 10030371-01 Rev A © Copyright Sokkia November, 2018 ® All contents in this manual are copyrighted by Sokkia . All rights reserved...

  • Page 3: Table Of Contents

    Technical Documents ..........1-4 Using Sokkia Software With Your Receiver ......1-4 Getting Technical Support .
  • Page 4 Setting Up the Rover Receiver ........6-2 Using GRX3 with External Antenna....... . . 6-4 Measuring Antenna Height .
  • Page 5 Specifications ..........9-1 General Details .

  • Page 6: Preface

    Preface Thank you for purchasing this Sokkia product. The materials available in this Manual (the “Manual”) have been prepared by Topcon Positioning Systems, Inc. (“TPS”) for owners of Sokkia products, and are designed to assist owners with the use of the receiver and its use is subject to these terms and conditions (the “Terms and Conditions”).
  • Page 7 Technical Documentation and Utility Software On the Sokkia Support website (https://us.sokkia.com/sokkia-care-products/sru-sokkia-receiver-utility), you can download technical documentation, training material, and various utility software to help you set up and use your Sokkia product. The website also offers registration resources, training, and technical assistance. Safety Improper use of the receiver can lead to injury to persons or property and/or malfunction of the product.
  • Page 8 , and click guest Mono Italic Sokkia Reference Manual. Reference to another manual or help document Refer to the Further information to note about system configuration, maintenance, or setup. Supplementary information that can have an adverse affect on system operation, system performance, data integrity, or measurements.

  • Page 9: Introduction

    Introduction The Sokkia GRX3 GNSS receiver is a compact, high-performing integrated GNSS receiver for static and kinematic land surveying applications. The receiver design includes 226 GNSS channel Vanguard ® Technology™ with Universal Tracking Channels and advanced integrated Fence Antenna technology.

  • Page 10: Grx3 Features

    Figure 1-1: GRX3 Receiver GRX3 Features The GRX3 GNSS receiver’s advanced design allows for simplified setup and maximum performance. The GRX3 receiver features the following: • 226 GNSS channel Vanguard Technology™ with Universal Tracking Channels for multi- frequency tracking of multiple satellite constellations such as GPS, GLONASS, BeiDou, QZSS, SBAS, and Galileo.

  • Page 11: Unpacking Your Receiver Kit

    For more details on the optional accessories available for GRX3, contact your Sokkia dealer. 1. Components in the standard kits may differ based on your country or region. Contact your local Sokkia dealer to inquire about items included in your regional standard kit and accessories that are available with the receiver.

  • Page 12: Technical Documents

    Table 1-2 lists the accessories available for the GRX3. For more information about accessories, see “Accessories”. Table 1-2. GRX3 Accessories Radio Antenna Prism External Antenna Cable Fixed Height Heavy Duty Tripod Rover Pole Offset Adapters Economy Tripod Tribrach with Plug Adapter...

  • Page 13: Getting Technical Support

    Getting Technical Support Before contacting a Sokkia customer representative about any problems with the receiver, see “Troubleshooting” for some solutions that may fix the issue. Contact your local Sokkia dealer or visit the Sokkia TotalCare support site (https://us.sokkia.com/sokkia-care) for technical support For quick and effective support, provide a detailed description of the problem.

  • Page 14: Website

    5. A description of the field environment and/or observation conditions when the problem occurred. Website The Sokkia website provides current information about Sokkia’s line of products. The support area of the website provides access to Sokkia field and office software, manuals and frequently asked questions.

  • Page 15: Getting Acquainted

    Currently there are two (2) versions of the GRX3 receiver: 1. A GRX3 GNSS receiver without UHF modem (P/N 1028556-02). The upper part of the receiver includes both GNSS and Bluetooth antennas. The upper part of the receiver is covered by a Radome and is securely surrounded by a shock absorbing rubber bumper ...

  • Page 16: Receiver Enclosure-Display Panel

    2. A GRX3 GNSS receiver with UHF (P/N 1028556-01) modem. The upper part of the receiver includes GNSS and Bluetooth antennas. The upper part of the receiver is covered by a radome and is securely surrounded by a shock absorbing rubber bumper.

  • Page 17: Receiver Enclosure-Sim Card Door

    Figure 2-4: Removing the SIM Card Door Receiver Enclosure—GRX3 Hardware Reset Button If the GRX3 receiver stops responding via the Power button (Figure 2-3) or the external software— perform a hardware reset. A hardware reset should only be performed when the GNSS receiver is powered on and not otherwise responding.

  • Page 18: Receiver Enclosure-Bottom Overview Labels

    Receiver Enclosure—Bottom Overview Labels Attached to the bottom of the receiver enclosure are the regulatory and product identification labels. The Product Identification Label contains the Serial Number (S/N) and Part Number (P/N)  (Figure 2-5) for the receiver. Regulatory Label Part Number Serial Number Label...

  • Page 19: Cables

    P/N 14-008005-03 1. Components in the standard kit may differ based on your region. Contact your local Sokkia dealer to inquire about items included in your regional standard kit, and accessories that are available with the receiver.
  • Page 20 (Optional) Connects SAE connectors over longer distances. P/N 14-008022-01 External Antenna Cable (Optional) Connects the receiver to an external Sokkia GNSS antenna. P/N 1006447-01 Figure 2-6: Power Charger Cable—US P/N 1005793-01 Figure 2-7: Power Charge6 Cable—Europe P/N 1005794-01 P/N: 1030371-01...

  • Page 21: Accessories

    Accessories Sokkia offers a wide variety of accessories specially designed to improve system flexibility and job site efficiency. For more details about the available accessories, contact your Sokkia dealer. • Power Supply Unit (P/N 1005555-01): This item charges the internal battery when connected to a grounded outlet.

  • Page 22: Battery

    Receiver Enclosure Top—Connectors • Radio Modem Antenna Connector—The radio antenna of the UHF radio modem plugs to the external antenna connector on the GRX3 radome. The radio antenna uses a BNC connection. For additional specification information see Table 9-2. BNC Connector...
  • Page 23 Receiver Enclosure Bottom—Connectors • Power connector—outlined in red. This connector is used to connect the receiver to an external power source. This connector can also be used to charge the battery. The body of the connector on the corresponding cable is red. For additional specification information see Table 9-5. Serial connector—outlined in green.

  • Page 24: Display Panel

    Radio BATT Figure 3-1: LED Display and Power Button Panel This version of the GRX3 GNSS Receiver does not have Cellular operation. Power Button The power button (Figure 3-1) performs multiple functions. The duration in which the button is pressed and held determines how the receiver will perform.

  • Page 25: Led Display Panel

    Static and three times in a row This function is available for “Occupation mode Kinematic post- within 1 second. switch” only. See Sokkia Receiver Utility (SRU) processing modes Help. Performing Factory 10-15 seconds Release the Power button when STAT LED turns Reset magenta.

  • Page 26: Receiver Status Leds

    Receiver Status LEDs There are six status LEDs to provide information about satellite tracking, recording, Bluetooth, cellular, radio, and remaining internal battery life. This section describes the color and behavior of each LED. Status LED The tracking status LED displays the status of tracked satellites when the receiver is on. Table 3-3.

  • Page 27: Recording Led

    Table 3-3. Status LED Descriptions Display LED Color Description Red-Green-Yellow OAF is expired. Recording LED The recording LED indicates if data is being written to memory, and displays the current survey mode (static or kinematic) when the Occupation mode switch is selected Table 3-4.

  • Page 28: Communication Leds

    Communication LEDs The communication LEDs display the status of the wireless activity. The following tables describe the communication activity for two use cases: Bluetooth and Radio modems (UHF and FH915). Bluetooth LED The Bluetooth LED displays the status of the Bluetooth activity. Table 3-5 describes the activity. Table 3-5.

  • Page 29: Radio Led

    Radio LED The Radio LED displays the status of the UHF modem. Table 3-6 describes the LED colors and patterns for the UHF modem. Table 3-6. UHF Modem LED Descriptions Display LED Color Description Command mode (Rover and Base) Red Blink - Green MAGNET Field, GeoPro or SRU sends commands Blink - No Light to configure the modem.

  • Page 30: Battery Led

    Battery LED The battery LED indicates the remaining charge of the internal battery. When using an external power source, the LED turns solid green and begins to blink if the batteries are charging. See Table 3-7 for more information. Table 3-7. Internal Battery LED Descriptions Display LED Color Description...
  • Page 31 Table 3-7. Internal Battery LED Descriptions Display LED Color Description The receiver is off Green Solid The receiver is connected to an external power source, and the battery is fully charged. Green Blink The receiver is connected to an external power source, and the battery is at greater than 50% capacity;...

  • Page 32: Managing Power

    Managing Power This chapter describes how to power the receiver, charge the battery, and use an external power source. Turning the Receiver On/Off To turn-on the receiver, press and hold the power button until the LEDs briefly flash. The receiver is turning on when: the Power LED blinks green, the receiver channels initialize and start tracking all visible satellites at any time and location, and the serial port is available.

  • Page 33: Operating Hours

    Table 4-1 describes the use conditions and the operating hours of the receiver. The first values in the Approximate Hours of Operation column are obtained while using both batteries (internal). The second values are obtained while using the battery only (internal battery is discharged). Table 4-1. GRX3 Approximate Hours of Operation Approximate Hours of Use Condition...

  • Page 34: Battery Charging Temperatures

    When the receiver is connected to an external power source, the internal battery is charging, regardless of the receiver state. To charge the internal battery: 1. Connect the supplied power cable to the receiver’s power port. 2. Connect the SAE connector of the power cable to the SAE connector of the power adapter. 3.

  • Page 35: Using An External Power Source

    Using an External Power Source You can connect the receiver to an external power source (such as a vehicle battery with 9 – 27 VDC) to operate the receiver. Power input greater than 27 VDC could damage the receiver. To connect the receiver to an external battery: 1.
  • Page 36 To restore power to the receiver you will need to connect the receiver to an external power source: a. Make sure the power cable is correctly connected to the power port of the receiver. b. Align the keyways when connecting the power cable to the power port of the receiver. c.

  • Page 37: Configuration

    Configuration The GRX3 receiver is primarily used for surveying land and construction job sites, and to support static and RTK applications. You can also log data internally to a non-removable SD card. These logs can be downloaded from the receiver for static or kinematic surveying, mapping, monitoring, and positioning applications.
  • Page 38 Therefore, Sokkia does not recommend using a physical COM port to update firmware. Receiver board firmware is released as a file with “*.tfi” extension. Sokkia Receiver Utility version 3.3 and higher supports loading of files with “*.ldr”, “*.ldp”, “*.tar”, “*.tfi” extensions.
  • Page 39 8. Select the specified COMX port for USB communication and then click OK. The Connection Parameters screen appears. Figure 5-2: Connection Parameters/Select Port Screens The Select Port window shows Gadget Serial (COM18). This item could be a USB Serial device like (COM5 or COM6 or COMX) as is appears on your system. Not the Gadget Serial (COM18) that is shown in Figure 5-2.
  • Page 40 12. Click Next. The Information screen appears (Figure 5-3). Figure 5-3: Select Device/Device Information Screens 13. Click Next. The Select Files screen appears (Figure 5-4). 14. Click the button and browse for the receiver’s *.tfi file. 15. Click Next. The Installation screen appears and the firmware begins uploading (Figure 5-4). Figure 5-4: Select Files/Installation Screens 16.

  • Page 41: Option Authorization Files

    Sokkia’s OAF system allows you to customize and configure the receiver according to your particular requirements. The GRX3 receiver is typically shipped with an OAF based on the initial purchase of the receiver kit configuration. There are several upgrade options available with the receiver that can extend the receiver’s functionality to better suit your job requirements.

  • Page 42: Loading An Oaf

    (Figure 5-5) displays, so you can view the current authorization options and upload new ones. Figure 5-5: Receiver Options Loading an OAF Sokkia dealers provide customers with OAF files. For any OAF related questions, e-mail Sokkia at: https://us.sokkia.com/sokkia-care and include the receiver’s ID and serial number. To obtain these numbers, see “Getting Technical Support”.
  • Page 43 2. Right-click on the Receiver Options window, and select Upload OAF (Figure 5-6). Figure 5-6: Right-click and Select Upload OAF 3. Navigate to the location of the new Option Authorization File. 4. Select the appropriate file, and click Open (Figure 5-7). Figure 5-7: Load OAF SRU initially checks to see if the selected file is compatible with the currently connected receiver.
  • Page 44 5. Click Upload the File to the Receiver to start loading the file (Figure 5-8). Figure 5-8: Upload OAF to the Receiver 6. Click Yes at the prompt to reset the receiver (Figure 5-9). The Connection Parameters screen appears. Figure 5-9: Reset Receiver 7.

  • Page 45: Performing A Factory Reset

    10. To view additional OAF details, right-click in the Receiver Options window and select  View > Detailed (Figure 5-10). Figure 5-10: Additional OAF Details The procedure for loading new firmware into the GRX3 can be performed using MAGNET Field software version 5.1 and higher. Performing a Factory Reset The receiver’s Non-Volatile Random Access Memory (NVRAM) holds data required for satellite...

  • Page 46: Perform A Factory Reset Using Sru

    Perform a Factory Reset Using SRU 1. Connect the receiver to a computer. 2. Start SRU on your computer. 3. Click Device > Application Mode > Receiver Managing. 4. Click Device > Connect. The Connection Parameters screen appears. 5. Click the Connect button to establish a connection with the receiver. 6.

  • Page 47: Perform A Factory Reset Using The Led Display

    The receiver contains the internal HIMU (Hybrid Inertial Measurement Unit) module. The module includes 3D gyroscope, 3D accelerometer and 3D magnetometer. GNSS firmware of the GRX3 contains the ELC (Electronic Level and Compass) program module. This module uses the measured parameters from the HIMU, receiver navigation coordinates from the GNSS firmware, and a magnetic field map for calculation tilt angles in the horizontal plane, true (not magnetic) azimuth and magnetic field value.

  • Page 48: Himu Calibration

    2. Automatically start the measuring of a point if the pole tilt value was less than one degree during the time interval longer than the specified value. 3. Show/hide graphic view of the bubble level. The bubble level is shown in MAGNET Field in the Topographic, Auto-topographic, and Stake dialogs for GPS+ configuration only.
  • Page 49 • if the receiver took a shock, such as being dropped; • if temperature changes are 10 degrees or more; • if the receiver was transported by a car or airplane; • if the receiver was near a strong magnetic object or material, such as a permanent magnet, electromagnet, electric transformer, AC power supply, and so forth.

  • Page 50: System Setup

    System Setup The base receiver transmits RTK corrections to the rover receiver using either Sitecomm wireless technology or UHF. The internal cell module receives correction data from reference GNSS networks. This chapter describes the field setup for base or RTK rover usage. Setting Up the Base Receiver 1.

  • Page 51: Setting Up The Rover Receiver

    8. Run MAGNET Field software on the field controller and connect the base receiver to the controller via Serial Port or Bluetooth. Select the following parameters: • elevation mask, the RTK output format, • • radio modem parameters (for UHF modem; Power, Protocol, Modulation, Spacing, Scrambling, •...
  • Page 52 5. Run MAGNET Field software on the field controller and connect the rover receiver to the controller via Serial Port or Bluetooth. 6. Configure UHF modem: • select the receiver for the UHF modem: – an elevation mask; – the RTK input format; –...

  • Page 53: Using Grx3 With External Antenna

    Using GRX3 with External Antenna The GRX3 GNSS receiver can be used with an external antenna. The GRX3 receiver is primary designed for using with Sokkia active (with LNA) external antenna. Sokkia cannot guarantee the correct performance with other brands of GNSS antenna.

  • Page 54: Measuring Antenna Height

    After this change the receiver will track GNSS signals only with external antenna. When the external antenna is selected, the GRX3 supplies a voltage in the range from +4.5 V to +5.5 V to the central pin of the SMB antenna connector. Maximum antenna current equals to 120 mA.
  • Page 55 Any necessary antenna phase center adjustments, based on the antenna model, are automatically applied. These adjustments, when combined with accurately measured height and measurement methods, allow for correctly computed reference marker coordinates. To accurately measure the antenna height, do the following: 1.

  • Page 56: Collecting Data

    Memory The GRX3 is equipped with an internal 8 GB memory card. The memory card is formatted as FAT32. To access the raw data files on the memory card, see “Managing Files”. Setting Recording Parameters You can use one of the following ways to set logging parameters, such as logging rate, types of messages, and so forth.

  • Page 57: Recording Data Using Sokkia Receiver Utility

    REC LED is dark. With the Power button, you can record up to 16 raw data files. Recording Data Using Sokkia Receiver Utility To start recording data using SRU: 1. Press the Power button to turn on the receiver.
  • Page 58 To use these log parameters after pressing the MINTER, select Use for MINTER & AFRM (Figure 7-2). Figure 7-2: Context Menu of Logs Tab 8. Click OK to save all changes. Using the MINTER, you can start logging one or more files. By default, clicking the Power button three times in a row within two seconds will log a file.
  • Page 59 2. Click Start File Logging (Default Settings). The current logging file is displaying in the Logs tab (Figure 7-4). Figure 7-4: Start File Logging With Default Settings You can specify the logging parameters manually. To start recording data to the selected file with arbitrary settings, do the following.

  • Page 60: Managing Files

    Managing Files The receiver records TPS data to a storage medium with a FAT32 file system. The files and folders are organized in a hierarchical structure. A total of 3000 files can be recorded and stored on the storage medium. You can program the receiver to: •...
  • Page 61 When the memory is full, the receiver stops logging data, and the REC LED turns dark/off, indicating an error condition. Existing data are not overwritten. To delete raw data files from the internal memory of receiver do the following: • Right click on the desired file(s) to open the context menu and select Delete.

  • Page 62: Troubleshooting

    See “Power Connector” for external power requirements. • Check the software. Make sure the most current software version is downloaded onto the computer and the most current firmware is loaded into the receiver. Check the Sokkia website for the latest updates. •...

  • Page 63: Receiver Problems

    • – If you are using a USB cable connection, make sure the USB driver, included on the GPS+ Software CD, is installed on the computer. You can also download the driver from the Sokkia support Website at https://us.sokkia.com/sokkia-care-products/sru-sokkia-receiver-utility. Generic problems: •...
  • Page 64 The corresponding receiver options may be disabled or expired. – Order a new OAF with the required options activated to enable or extend validity of the corresponding receiver options. Sokkia Receiver Utility SRU) Help – Refer to the for a detailed description of options.
  • Page 65 The receiver does not start logging data • The receiver’s memory is disabled or expired. – Make sure the memory option is enabled. For details, see the Sokkia Receiver Utility (SRU) Help • The internal memory does not have free space.

  • Page 66: Bluetooth Problems

    – Disconnect the receiver from the other controller or computer. • The receiver port used for connection is not in Command mode. Sokkia a. Connect the receiver to a computer and open SRU (see “Connection” in the Receiver Utility (SRU) Help embedded in the software).

  • Page 67: Sru Problems

    If using Bluetooth wireless technology, the incorrect port is selected. – Use a computer or receiver that has Bluetooth wireless technology enabled/installed. – Make sure the computer and receiver use the correct ports for communication—For the GRX3 receiver, this is Bluetooth serial port A (btsp\a).

  • Page 68: Cleaning And Storing The Receiver

    Getting Customer Support If the troubleshooting hints and tips in this operator’s manual fail to remedy the problem, contact your local Sokkia dealer or visit the Sokkia Care website (https://us.sokkia.com/sokkia-care) for technical support. For contact information, see “Getting Technical Support”.

  • Page 69: Specifications

    Specifications This chapter describes the internal component specifications for the GRX3. General Details Table 9-1 lists the receiver’s general specifications. Table 9-1. General Receiver Specifications Item Specification Physical Enclosure Magnesium Alloy housing Color Sokkia Gray/Blue bumper Dimensions (mm) 149 (w) x 149 (l) x 94.6 (h) Weight (kg) 1.061...
  • Page 70 Power Battery Internal: Li-ion, 11,600 mAh, 3.7 V  Operating Time For the GRX3 with R2 Lite UHF Modem: • Receive-only mode – 10 hours Average with modem “on” • Transmitting at 0.5 W – 8 hours and 20 SVs tracked.
  • Page 71 Table 9-1. General Receiver Specifications Item Specification PLL/DLL Settings Bandwidth, order, adjustable SBAS WAAS/EGNOS/MSAS Quartz Lock Loop (QLL) Protection against vibrations Data USB Micro-A/B Device Mode - Mass storage, virtual serial Formats TPS proprietary, RTCM SC104 version 2.X, RTCM 3.X, CMR/CMR+, BINEX Features Up to 20 Hz update rate for real time position and raw data...
  • Page 72 Table 9-1. General Receiver Specifications Item Specification Serial Port Specifications RS-232 Serial Port: • Baud rate: 460800, 230400, 115200 (default), 57600, 38400, 19200, 9600, 4800, 2400, 1200, 600, 300 • Flow control: RTS/CTS • Length: 7 or 8 (default) • Stop bit: 1 (default), 2 •...
  • Page 73 Table 9-1. General Receiver Specifications Item Specification Process Interval 1-Hz standard; 10, 20 Hz optional Survey Modes Base or Rover Autonomous (standalone) DGPS (w/user base) DGPS (w/SBAS) Static Kinematic (continuous, stop and go) RTK (delay, extrapolation) Positional Accuracy Standalone Horizontal 1.2 meters Vertical 1.8 meters RTCM based DGPS Horizontal <0.25 meters...

  • Page 74: R2 Lite Uhf Internal Modem Board Details (Optional)

    R2 Lite UHF Internal Modem Board Details (Optional) Table 9-2 lists GRX3’s optional R2 Lite UHF modem specifications. Table 9-2. R2 Lite UHF Internal Modem Board Specifications Item Specification Operating Frequency 425 – 470 MHz for Rover and Base Range Channel Spacing 6.25 KHz...

  • Page 75: Bluetooth Module Details

    Frequency Country Code North America and Europe Connector Specifications GRX3 has one antenna connector for radio transmission/reception, and four data and port connectors for power, serial communication, micro-USB, and the external GNSS antenna. The Sitecomm and Bluetooth antennas are internal.

  • Page 76: Power Connector

    Power Connector The power connector (Figure 9-1) is a sealed receptacle, 5 pin, ODU (P/N G80F1C-T05QF00-0000). Figure 9-1: Power Connector Table 9-5 describes power connector specifications. Table 9-5. Power Connector Specifications Number Signal Name Details Power_INP 9 – 27 volts DC input Power_INP 9 –...

  • Page 77: Micro-Usb Connector

    Table 9-6. RS-232 Connector Specifications (Continued) Number Signal Name Details Clear to send Request to send Receive data Transmit data 1-PPS Micro-USB Connector The micro-USB connector is a standard 5-pin, micro-USB, A/B connector (Figure 9-3). Figure 9-3: USB Connector for GGD Options Table 9-7 describes the micro-USB connector specifications.

  • Page 78: Product Identification

    Product Identification The GRX3 receiver, featuring Vanguard™ Technology, supports 226 channels, which are listed in Table 10-1 by serial number range. Table 10-1. Product Part and Assembly Numbers Part Number Description Assembly Part Number No antenna needed  ASSY, GRX3 NO RADIO, NO CELL...

  • Page 79: Safety Warnings

    Safety Warnings General Warnings To comply with RF exposure requirements, maintain at least 37 cm between the user and the radio modem. TPS receivers are designed for survey and survey related uses (that is, surveying coordinates, distances, angles and depths, and recording such measurements). This product should never be used: •...

  • Page 80: Receiver Warnings

    Receiver Warnings Tampering with the receiver by the end users or non-factory authorized technicians will void the receiver’s warranty: • Do not attempt to open the receiver and modify any of its internal components. • Do not charge in conditions different than specified. •...

  • Page 81: Regulatory

    Regulatory The chapter provides information about this product’s compliance with government regulations for use. FCC Compliance This equipment complies with FCC radiation exposure limits set forth for uncontrolled equipment and meets the FCC radio frequency (RF) Exposure Guidelines in Supplement C to OET65. This equipment has very low levels of RF energy that it deemed to comply without maximum permissive exposure evaluation (MPE).

  • Page 82: Industry Canada Compliance

    Industry Canada Compliance This class A digital apparatus complies with Canadian ICES-003.  Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada. This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

  • Page 83: Restrictions On Use

    The GRX3 UHF is allowed to be used in the following countries, either on license free channels or on channels where the operation requires a license. Additional detailed information is available at the local frequency management authority.

  • Page 84: Declaration Of Conformity  (Radio Equipment Directive 2014/53/Eu)

    Declaration of Conformity  (Radio Equipment Directive 2014/53/EU) (Sokkia) (GRX3) esky tímto prohlašuje, že tento je ve shod se [Czech] základními požadavky a dalšími píslušnými ustanoveními smrnice 2014/53/ES. (Sokkia) Dansk Undertegnede erklærer herved, at følgende udstyr (GRX3) [Danish] overholder de væsentlige krav og øvrige relevante krav i direktiv 2014/53/EF.
  • Page 85 (Sokkia) (GRX3) Magyar Alulírott, nyilatkozom, hogy a megfelel a [Hungarian] vonatkozó alapvetõ követelményeknek és az 2014/53/EC irányelv egyéb elõírásainak. (Sokkia) (GRX3) Polski Niniejszym, , deklaruj, e spenia wymagania [Polish] zasadnicze oraz stosowne postanowienia zawarte Dyrektywie 2014/53/EC. (Sokkia) (GRX3) Português declara que este está...

  • Page 86: Weee Directive

    WEEE Directive Following information is for EU-member states only: The use of the symbol below indicates that this product may not be treated as household waste. By ensuring this product is disposed of correctly, to help prevent potential negative consequences for the environment and human health, which could otherwise be caused by inappropriate waste handling of this product.

  • Page 87: Warranty

    Sokkia dealer. During the warranty period, Sokkia will, at its option, repair or replace this product at no additional charge. Repair parts and replacement products will be furnished on an exchange basis and will be either reconditioned or new.

  • Page 88: Glossary

    L2—The secondary L-band carrier used by GPS, GLONASS and QZSS satellites to transmit satellite data. Light Emitting Diodes (LEDs)—These LEDs are used as indicator lights on the GRX3 receiver to display the status of the receiver’s components and to control receiver operations.
  • Page 89 Static Survey—Typically uses a network or multiple baseline for positioning. The static survey method provides the highest accuracy and requires the longest observation times. Sokkia Receiver Utility (SRU)—Hardware configuration software designed for GNSS receivers and peripheral devices. SRU software is normally included on the GPS+ Software CD that accompanied your receiver.
  • Page 90 Concerns regarding this Sokkia product may be sent to Service and Repair Department, Topcon Positioning Systems, Inc., 7400 National Drive, Livermore, California 94550 Specifi cations subject to change without notice. All rights reserved. 1030371-01, Revision A, 11/2018 © 2018 Topcon Corporation...

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