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- Page 1 GNSS Receiver G7H+ User Manual TI Asahi Co., Ltd. Version 1.10 International Sales Department 4-3-4,Ueno,Iwatsuki-ku,Saitama-shi Saitama 339-0073 Japan Tel.: +81-48-793-0118 Fax : +81-48-793-0128 E-mail : international@tiasahi.com...
- Page 2 G7H+ User Manual © 2024 TI Asahi Co., Ltd. All rights reserved. PENTAX, the PENTAX logo are trademarks registered in the U.S. and other countries. No part of this document may be copied, used or reproduced without the prior written permission of TI Asahi.
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Page 3: Table Of Contents
Content Content ......................... 1-3 1. Introduction ......................1 1.1. User Notice.......................... 1 1.1.1. Radio Equipment Notice ..................1 1.1.2. CE Mark ........................1 1.1.3. Warranty ......................... 1 1.1.4. Customer Service and Support ................2 1.2. Foreword ..........................2 1.2.1. Related Software ..................... 2 1.2.2. - Page 4 4.2.3. Set up rover ......................15 4.2.4. Rover settings ......................15 4.3. RTK Dynamic survey (Network) ..................16 4.3.1. Rover settings ......................16 5. Tilt measurement ....................18 5.1. Magnetic calibration ......................18 5.2. Tilt setting for recording ....................20 6.
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Page 5: Content
1. Introduction 1.1. User Notice This section provides information regarding CE, Warranty and Customer Service with Support. All specifications are typical and subject to change without prior notice. TI Asahi reserves the right for improvements and changes to this document, products and services without notice or obligation. 1.1.1. -
Page 6: Customer Service And Support
Warranty is void if the G7H+ has been tampered with or opened. 1.1.4. Customer Service and Support Contact your PENTAX dealer for first-line support. Further problems or questions, please contact TI Asahi support: International@tiasahi.com 1.2. -
Page 7: Brief Introduction
2. Brief introduction This chapter is mainly used to introduce the key features and the appearance of G7H+. As the latest generation of GNSS receiver, G7H+ brings you a better user experience. G7H+ is a high accuracy GNSS receiver which has LINUX platform. The rugged housing which has IP67 protection level and strong battery life of G7H+ provide stable and reliable performance in a variety of scenarios. - Page 8 (1) Compact and lightweight design. The dimensions of G7H+ is radius 130mm × height 102mm, but its weight is approximately 1050g (without battery). The compact and lightweight design allow users to carry out easily. (2) Advanced datalink The radio module and the communication protocol are compatible with the main RTK products in the market and able to work together with other brand RTK products so as to optimize your asset allocation.
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Page 9: G7H+ Receiver
2.2.G7H+ Receiver G7H+ receiver is a flat cylindrical, 102mm in height, 130mm in diameter. The front side has 1 power buttons and 3 indicators. The back side is a battery compartment. In the compartment, there are two slots, one for SIM card another for Micro SD card. The bottom of the receiver is some interfaces. - Page 10 Satellite led (green) It shows the amount of locked satellites; when the receiver links one or more satellites signal it will start to blink every 30 seconds for a number of times equal to the number of locked satellites. When the receiver doesn’t lock satellites, the satellite led does not shine. Figure 2- 2 Satellite led Network led (green) This light is on when GSM/GPRS module is selected as RTK datalink.
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Page 11: Back Side Of The Receiver
2.2.2. Back side of the Receiver Figure 2- 5 G7H+ back side Number Name Function Battery compartment cover Protect the battery Compartment locker Open/lock the cover Micro SD card slot Put and read Micro SD card SIM card slot Put and read SIM card Installing/Uninstalling SIM card and microSD card There is a SIM card slot and a micro SD card slot in the middle of the two battery houses, the upper one is SIM card slot. -
Page 12: The Bottom Of Receiver
2.2.3.The bottom of Receiver Figure 2-6 G7H+ bottom Figure 2- 3 5-PIN interface Figure 2- 4 7-PIN interface ❶ 5PIN LEMO Connect to external radio and external battery ❷ Radio antenna connector Connect to radio antenna ❸ 7PIN LEMO Connect to PC or handheld, USB + serial port... -
Page 13: Basic Operations Of G7H
3. Basic operations of G7H+ In this section, we highlight the basic operations of G7H+. It includes the installation of base and rover, the operation of keys, changing work mode and datalink, self-test. All of these basic operations are simple and easy. But they are very important. 3.1.Power on When the Receiver is in the OFF status (no light), press the power key until you listen beep and LED light up, and then the receiver will enter the initialization status. -
Page 14: Power Off
self-checking is completed. If the module self-check fails, voice broadcast “xx self-check error”, the led will continue blink and the buzzer beeps until you restart the receiver. Self-checking procedure lasts about 1 minute. Please contact your dealer if the self-checking is failed. If each module led are ON (not blinking) and voice broadcast the self-checking success (for example “self-check GPS OK”), it means the modules could work normally. -
Page 15: Field Survey
4. Field survey 4.1.Static survey 4.1.1.Static survey introduction Two (or more than two) GNSS receivers are used, and they are respectively placed on the measuring stations for simultaneous observation, and the GPS positioning measurement to determine the relative position between the measuring stations. Scope of application：... -
Page 16: Gps Control Network Design Principles
4.1.3.GPS Control network design principles 1) In order to ensure the continuous tracking and observation of satellites and the quality of satellite signals, GPS outlets should be set up in a wide field of view, and the height angle of obstacles in the field of view should not exceed 15 degrees. - Page 17 Figure 4-3 Instrument Setting Figure 4-4 Raw Data Logging 4) Then choose [Raw Data Logging]. 5) Set up Logging Name, Rate and Format. 6) Press [Start logging] to start logging a data. 7) After taking data press [Stop logging] to stop logging data.
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Page 18: Rtk Dynamic Survey (Radio)
4.2.RTK Dynamic survey (Radio) RTK dynamic survey (base, rover) is divided into two modes according to the different transmitting methods of differential data, radio mode and network mode. 4.2.1.Set up base a. Install the tripod on the chosen position, level it and attach the receiver into tribrach. b. -
Page 19: Set Up Rover
4.2.3.Set up rover After the base is set up, then start to set up the rover. a. First install the handheld bracket on the pole, fix the handheld on the handheld bracket, and fix the receiver on the pole。 b. As the datalink mode is radio, please connect the built-in radio antenna to the receiver. c. -
Page 20: Rtk Dynamic Survey (Network)
4.3.RTK Dynamic survey (Network) Erection of Base and Rover Because the RTK- network mode uses the network to transmit differential data, and the radio mode is only different in transmission mode, the base and rover are set up in a similar way. The data link selects the network mode, sets the IP, port, and access point, and selects differential format, satellite system. - Page 21 Figure 4-9 Mobile setting GSM Figure 4-10 Mobile setting Internet 5) Then you will be asked to select Source table. Chose one of the Source table. 6) After connect the server, it forwards the received differential data to the receiver, so that the receiver can do network RTK.
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Page 22: Tilt Measurement
5.Tilt measurement 5.1.Magnetic calibration Switch on the receiver and setup FieldGenius to get Fixed the position. Calibration step 1: draw circle with the pole on ground (usually 2 circles). Figure 5-1 Mapping Screen Initialize IMU Figure 5-2 Mapping Screen RTK Fixed... - Page 23 Tilt measurement initialization When the receiver gets fixed solution and finishes magnetic calibration, it can start tilt measurement calibration. Calibration step 2: Carry the receiver and walk to 20-30 meters then come back to the starting point until the icon [Initialize IMU] turned off. Figure 5-3 GNSS Measurement Initialize IMU Figure 5-4 GNSS Measurement Accepted...
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Page 24: Tilt Setting For Recording
5.2.Tilt setting for recording When you record a data using FieldGenius, it is possible to reject data while the receiver tilt more than certain level of inclination. By setting a pole vertically straight, you will be allowed to store the data. Figure 5-5 Instrument setting Figure 5-6 Tilt Correction setting... -
Page 25: Web Ui Function
6. Web UI function G7H+ has Web UI functionality. By getting access to its internal hotspot, you can easily manage it on the Web UI. As long as you have a smart phone, PC or handheld with WIFI functionality, you can easily connect to the G7H+ to view status, download data and configure the receiver. -
Page 26: Status
6.1.Status In this page, you can see the current status of the receiver, including system mode, current datalink, longitude and latitude, height, solution status and satellite status. Figure 6-2 6.2.Information In this page, you can see the device information of the receiver, including device model, hardware/firmware version, BOOT/OS version, battery power and data memory. -
Page 27: Satellites
6.3.Satellites In this page, you can set cutoff angle, view current satellites table and satellites skyplot. Figure 6-4 6.4.Download In this page, you can download the recording data. Figure 6-5... -
Page 28: Management
6.5.Management In this page, you can update firmware, register the device, change password, view APP/OS logs, formatting internal disk, proceed self test restore factory settings and do other operation. Figure 6-6... -
Page 29: Settings
6.6.Settings Settings includes settings for Working Mode, Device Configuration and NMEA Message. 6.7.Working Mode In this page, you can set receiver working mode as required: Static mode, Rover mode and Base mode. For each working mode, you can set datalink and other parameters as required. Static mode ①... - Page 30 ② Rover mode In the Rover mode settings, you can set current datalink. There’re different parameters to set up with different datalink. Datalink includes UHF (Radio), Network, External (External radio) and Bluetooth. With the datalink as UHF, you can set radio channel, radio protocol and channel spacing. Figure 6-8...
- Page 31 With the datalink as Network, you can set network information such as IP address and Caster port. It can get the access point after all the network information is set up. Figure 6-9...
- Page 32 With the datalink as External, the receiver can connect to one external radio. Note: the external serial port baud rate of the receiver should be the same as that of external radio。 Figure 6-10...
- Page 33 With the datalink as Bluetooth, you can set cutoff angle, select satellite system, and input point name, antenna height, PDOP threshold and interval. Figure 6-11...
- Page 34 ① Base mode In the Base mode settings, you also can set current datalink: UHF (Radio), Network, External (External radio) and Dual. For settings with each datalink, most settings are the same as those in the Rover mode. The additional part in the Base mode is as below. Figure 6-12...
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Page 35: Device Configuration
6.7.1.Device configuration In this page, you can set up basic system parameters, including language, time zone, speaker and first storage position. Figure 6-13... -
Page 36: Nmea Message
6.7.2.NMEA Message In this page, you can set NMEA version, turn on/off required message, enable/disable NMEA and set RS232 baud rate. You can turn on the message and set output frequency as required. NMEA messages include GGA, GSA, GST, RMC, ZDA, GSV, VTG, GLL, GEDOP, GEREF, GESNR and GEVCV. Figure 6-14... -
Page 37: Gnss Antenna Offsets
6.8.GNSS Antenna Offsets 6.8.1. Vertical offset Vertical Offset Figure 6-15: Phase Center Location Vertical Offsets G7H+ L1 Offset (mm) 100.3 L2 Offset (mm) 81.9... -
Page 38: G7H+ Standard Accessories
7. G7H+ standard accessories On the basis of the configuration chosen (base or rover), some of these accessories are - included in the receiver bundle. Categories Model Description Qty. Standard accessories Battery for GNSS BP09 Charger for BP07 BC05 with adapter UHF radio antenna For 450-470Mhz Adapter... - Page 39 Charger The charger provided with AC adaptor and AC cord. The specification of AC Adapter is shown below; Input: 100-240VAC ~50/60Hz 1.7A Output: 19.0VDC @ 3.16A Charging Operation The charger can charge two batteries simultaneously. (1) Plug the AC cord to AC Adapter. (2) Plug in AC Adapter to Battery Charger.
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Page 40: Other Accessories
The other accessories are: 25cm supporting pole, bracket, connector between receiver and tribrach. Categories Description Qty. for Rover Set Controller Bracket for Controller PENTAX FieldGenius Carbon Pole for Base Set Tribrach Tribrach adapter Wooden Tripod Optional accessories External Radio set Ext. -
Page 41: Appendixes
8. Appendixes 8.1. Default radio configuration The frequency and protocol of the 8 channels could be modified via Web UI or controller. So you could change it easily. And the Frequency range is from 410MHz to 470MHz, so you can select as you want. -
Page 42: Specification
8.2. Specification Channel 1408 channels Multi-Frequency GPS, GLONASS, Configuration Galileo, Beidou, IRNSS and QZSS Receiver Board Unicore UM980 Signal Tracking GPS L1 C/A, L1C, L2C, L2P, L5 GLONASS G1, G2, G3 BEIDOU B1I, B2I, B3I, B1C, B2a, B2b Galileo E1, E5a, E5b, E5AltBOC*1, E6 QZSS L1 C/A, L1C, L2C, L5 SBAS... - Page 43 Approx. 12 hr: Rover, 10 hr: Base Battery Running Time with 2 Batteries Weight 1.1 kg with 2 batteries Dimensions Ø 130 mm x H 102 mm Environmental Operating Temperature -30 °C to +65 °C Specifications Storage Temperature -30 °C to +65 °C Shock/Drop Velocity Standalone...
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Page 44: List Of Typical Gnss Related Acronyms
9. List of Typical GNSS Related Acronyms APME A Posteriori Multipath Estimation Antenna Reference Point ASCII American Standard Code for Information Interchange Compact Measurement Record Central Processing Unit Carriage Return Clear to Send DGPS Differential Global Positioning System Dilution of Precision EGNOS European Geostationary Navigation Overlay System ESTB...
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