P O S I T I O N I N G S Y S T E M S HiPer® XT Operator’s Manual Part Number 7010-0713 Rev A ©Copyright Topcon Positioning Systems, Inc. April, 2005 All contents in this manual are copyrighted by Topcon. All rights reserved. The information contained herein may not be used, accessed, copied, stored, displayed, sold, modified, published, or distributed, or otherwise reproduced without express written consent from Topcon. Topcon only sells GPS products into Precision Markets. Please go to www.topcongps.
ECO#xxxx
TOC Table of Contents Preface .................................................................... vii Terms and Conditions .......................................................... vii Regulatory Information ....................................................... x Manual Conventions ............................................................ xi Chapter 1 Introduction ............................................................ 1-1 Overview ..............................................................
Table of Contents Back Panel .............................................................. 1-16 Option Authorization File (OAF) ........................................ 1-16 Chapter 2 Configuration .......................................................... 2-1 Powering the Receiver ........................................................ Internal Batteries ........................................................... External Batteries ..........................................................
Table of Contents Chapter 3 Setup and Survey ................................................... 3-1 Receiver Setup ..................................................................... 3-1 Step 1: Set up the Receiver ........................................... 3-2 Step 2: Measure Antenna Height .................................. 3-2 Step 3: Collect Data ...................................................... 3-4 Surveying with the Receiver ................................................
Table of Contents Receiver and Power Board Firmware ........................... 4-23 Bluetooth Module Firmware ......................................... 4-26 Chapter 5 Troubleshooting ..................................................... 5-1 Check This First! ................................................................. Power Problems ................................................................... Receiver Problems ...............................................................
Table of Contents Appendix C UHF Radio Usage ................................................... C-1 Appendix D Warranty Terms ......................................................
Table of Contents Notes: vi HiPer XT Operator’s Manual
Preface Preface Thank you for purchasing this Topcon product. The materials available in this Manual (the “Manual”) have been prepared by Topcon Positioning Systems, Inc. (“TPS”) for owners of Topcon products, and is designed to assist owners with the use of the receiver and its use is subject to these terms and conditions (the “Terms and Conditions”). NOTICE NOTICE Please read these Terms and Conditions carefully.
Preface TRADEMARKS – Topcon Tools™, TopSURV™, Modem-TPS™, HiPer®, Topcon® and Topcon Positioning Systems™ are trademarks or registered trademarks of TPS. Windows® is a registered trademark of Microsoft Corporation. The Bluetooth® word mark and logos are owned by Bluetooth SIG, Inc. and any use of such marks by Topcon Positioning Systems, Inc. used under license.
Terms and Conditions single computer. You may not assign or transfer the Software or this license without the express written consent of TPS. This license is effective until terminated. You may terminate the license at any time by destroying the Software and Manual. TPS may terminate the license if you fail to comply with any of the Terms or Conditions. You agree to destroy the Software and manual upon termination of your use of the receiver.
Preface MISCELLANEOUS – The above Terms and Conditions may be amended, modified, superseded, or canceled, at any time by TPS. The above Terms and Conditions will be governed by, and construed in accordance with, the laws of the State of California, without reference to conflict of laws. Regulatory Information The following sections provide information on this product’s compliance with government regulations. FCC Class B Compliance This device complies with Part 15 of the FCC rules.
Manual Conventions • Consult the dealer or an experienced radio/television technician for additional suggestions. CAUTION CAUTION Any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void your authority to operate such equipment. Canadian Emissions Labeling Requirements This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Preface NOTICE NOTICE Supplementary information that can have an affect on system operation, system performance, measurements, or personal safety. CAUTION CAUTION Notification that an action has the potential to adversely affect system operation, system performance, data integrity, personal health. WARNING WARNING Notification that an action will result in system damage, loss of data, loss of warranty, or personal injury. DANGER DANGER UNDER NO CIRCUMSTANCES SHOULD THIS ACTION BE PERFORMED.
Chapter 1 Introduction This chapter describes: • The HiPer® XT receiver (Figure 1-1) • GPS and your receiver • Common receiver functions • Standard package contents and configurations • Receiver components • The Option Authorization File (OAF) Figure 1-1.
Introduction Overview Topcon Positioning System’s HiPer XT is a dual-frequency, GPS+ receiver built to be the most advanced and compact receiver for the surveying market. The HiPer XT is a multi-function, multi-purpose receiver intended for precision markets.
Principles of Operation For information on the current status of the GPS constellation, visit http://tycho.usno.navy.mil/ or http://www.navcen.uscg.gov/. For GLONASS, visit http://www.glonass-center.ru/frame.html. Despite numerous technical differences in the implementation of these systems, both GPS and GLONASS have three essential components: • Space – GPS and GLONASS satellites orbiting approximately 12,000 nautical miles above Earth and are equipped with a clock and radio.
Introduction Once locked on to a satellite, the receiver collects ephemerides and almanacs, saving this information to its NVRAM (Non-Volatile RAM). • GPS and GLONASS satellites broadcast ephemeris data cyclically, with a period of 30 seconds. • GPS satellites broadcast almanac data cyclically with a period of 12.5 minutes; GLONASS satellites broadcast almanac data cyclically with a period of 2.5 minutes.
Principles of Operation – Wide Area Augmentation Systems (WAAS, EGNOS, etc.) creates and transmit, along with DGPS corrections, data integrity information (for example, satellite health warnings). – Current ephemerides and almanacs. Conclusion This overview simply outlines the basics of GPS and GLONASS positioning. For more detailed information, visit the TPS website (www.topconps.com/gpstutorial/).
Introduction Depending on your options, capabilities of the receiver include: • Co-Op Tracking • Multipath reduction • Wide area augmentation system (WAAS) • Adjustable phase locked loop (PLL) and delay lock loop (DLL) parameters • Dual-frequency static, kinematic, real-time kinematic (RTK), and differential GPS (DGPS) survey modes • Auto data logging • Setting different mask angles • Setting different survey parameters • Static or dynamic modes Standard Package Contents The HiPer XT comes in either a bas
Standard Package Contents Cables Standard cables (Figure 1-2) can include the following: • Receiver-to-computer RS232 serial cable (p/n 14-008005-03) – connects the receiver’s serial port and an external device (handheld controller or computer) • Receiver-to-SAE power cable (p/n 14-008016-03) – connects the receiver’s power port and the power supply’s SAE connector or the extension cable’s SAE connector • SAE-to-SAE cable extension (p/n 14-008022-01) – connects SAE connectors over longer distances • Alliga
Introduction Power Supply/Charger The Power Supply/Charger unit (p/n 22-034101-01) is used to charge the internal batteries when connected to a grounded outlet; it can also be used as an external power source (Figure 1-3). This unit converts the alternating current (AC) normally supplied from an electrical outlet to a direct current (DC) used to charge the batteries and power the receiver.
Standard Package Contents Software and software information are also available on the Topcon website (www.topcongps.com/software/index.html or http:// www.topcongps.com/software/3rdparty.html). The following software will also be useful for operating, caring for and using your receiver, and may be required for some applications. • TopSURV – Topcon’s field data collection software; among many other functions, can be used to configure the radio/modem.
Introduction Getting Acquainted The HiPer XT receiver is 158.5mm wide, 173mm deep, 113mm high, and weighs approximately ??kg. The receiver’s advanced design allows users to significantly reduce the number of cables required for receiver operation, with the ability to perform jobs more reliably and efficiently, especially when moving. The receiver is also versatile and can be configured in several different ways.
Getting Acquainted With Bluetooth wireless technology, the receiver’s reception and transmission distance is 10 meters (32 feet) for interior projects and 30–50 meters (98–164 feet) for exterior projects. The Bluetooth module’s processor and firmware are independent of the receiver card and power board. Radio Modem The receiver incorporates an internal, TPS UHF transmitter/receiver at 20MHz bandwidth, with a 12.5/25kHz channel spacing, and a maximum 2W power output for data transmission.
Introduction receiver is turned off. This feature allows the internal batteries to charge, regardless of the receiver’s status (on or off). To prevent the batteries from discharging when the receiver is stored, put the receiver in Zero Power Mode (see “Zero Power Mode” on page 4-19 for more information). The batteries will not charge in this mode. The power board’s processor and firmware are independent of the receiver card.
Getting Acquainted Table 1-2 describes the operating times for the HiPer XT receiver, with the internal batteries fully charged and dependent on the mode of the modem. Table 1-2. Operating Times Modem Mode Base Rover TX mode ON (2W) 11 hours -- TX mode ON (1W) ?? -- RX mode ON -- 14 hours OFF 16 hours 16 hours The Li-Ion batteries used in the HiPer XT should run at no less than 98% capacity after 500 charging cycles. These batteries do not need to be drained before recharging.
Introduction Figure 1-4. HiPer XT Radome Front Panel Figure 1-5 on page 1-15 shows front panel components for the HiPer XT receiver: • MINTER – The Minimum INTERface for the receiver consisting of three keys and four, three-color LEDs. See “Using the MINTER” on page 4-2 for descriptions and usages of the MINTER components. • Reset – This key performs a hard reset for both the receiver board and the power board.
Getting Acquainted – Port C used internally to connect the modem and receiver boards. – Port D used for communication between the receiver and an external device. • USB – used for high-speed data transfer and communication between the receiver and an external device. • PWR – The power input port to which an external power source (+6 to +28 V DC) is connected and where the unit is charged. • Slant height measure mark (SHMM). MINTER Reset A B C Power D USB Slant Height Measure Mark Figure 1-5.
Introduction Back Panel Figure 1-6 shows back panel components for the HiPer XT. • Vent plug – Equalizes the pressure between the inside of the receiver and the outside environment. • Slant height measure mark (SHMM) Vent Plug Slant Height Measure Mark Figure 1-6. HiPer XT Back Panel Option Authorization File (OAF) Topcon Positioning Systems issues an Option Authorization File (OAF) to enable the specific options that customers purchase.
Option Authorization File (OAF) • Update rate standard 1Hz (optional 5, 10, or 20Hz) • RTK at 1Hz, 5Hz, 10Hz, and 20Hz • RTCM/CMR Input/Output • Event marker • Co-Op tracking • Advanced multipath reduction • Wide Area Augmentation System (WAAS) • Receiver Autonomous Integrity Monitoring (RAIM) • 1 PPS (Pulse-Per-Second; a timing signal) P/N 7010-0713 1-17
Introduction Notes: 1-18 HiPer XT Operator’s Manual
Chapter 2 Configuration This chapter describes: • Receiver’s power supply • Connecting the receiver and a computer • Configuring the receiver • Minimum INTERface (MINTER) configuration • Radio configuration • Bluetooth module configuration • Collecting almanacs Before you can begin using the HiPer XT receiver, do the following: 1. Charge the batteries. See “Powering the Receiver” on page 2-2. 2. Configure the various parts of your receiver.
Configuration Powering the Receiver You can power the receiver using the internal batteries, using an external battery, or a battery charger. Internal Batteries With a full charge, and depending on the mode of the radio modem, the internal batteries should power the GPS receiver and the radio modem according to the times listed in Table 2-1. Table 2-1. Operating Times Modem Mode Base Rover TX mode ON (2W) 11 hours -- TX mode ON (1W) ?? -- RX mode ON -- 14 hours OFF 16 hours 16 hours 1.
Powering the Receiver The speed of the charge depends on the Power and Charger settings on the Receiver Configuration screen, and whether the receiver is turned off or on. See “Power Management” on page 2-5 for more information. The Li-Ion batteries used in the receiver should run at no less than 98% capacity after 500 charging cycles. These batteries do not need to be drained before recharging.
Configuration A single external 12 V, 2.3 A*h battery should run the receiver for about 7 hours and the receiver and modem for 5 hours. Figure 2-1. External Battery Attached to Receiver TIP TIP You can also use an SAE-to-SAE extension cable and an Alligator clip-to-SAE cable, and power the receiver from a battery, such as the battery used to power your Base radio or similar battery.
Powering the Receiver Turning On/Off the Receiver To turn ON the receiver, press and hold the green power key for about 0.5 seconds and release it. NOTICE NOTICE If the receiver does not turn on, it may be in Zero Power Mode. See “Zero Power Mode” on page 4-19 for more information. To turn OFF the receiver, press and hold the green power key for more than one and less than four seconds (until both the STAT and the REC LEDs are off).
Configuration • External – receiver uses an external power supply Figure 2-2. Select Power Mode 4. Select the Charger Mode drop-down list to set the desired charger mode (Figure 2-3). Current Mode displays the charging battery: a, b, or none (off). • Off – receiver will not charge batteries • Charge A – receiver charges only battery A • Charge B – receiver charges only battery B • Auto – receiver automatically detects and charges both batteries Figure 2-3.
Powering the Receiver 5. Select the Power output modes Ports drop-down list to set power output on the serial ports (Figure 2-4). • On – the power board will deliver voltage on pin one of all serial port connectors when the receiver is turned on. If the receiver is turned off, there will be no power on any ports. • Off – power will be absent even if the receiver is on. • Always – the power board will deliver voltage on pin one of all serial port connectors even if the receiver is turned off. 6.
Configuration • Battery B – displays the voltage of battery B • Charger – displays the charger’s output voltage during battery charging Figure 2-5. View Voltages Information 8. Select and check each of the Turn on/off Slots check boxes to enable the corresponding internal slots (Figure 2-6). 9. Select and check the Enable Low Power Mode check box to put the receiver’s processor into low power consumption mode (Figure 2-6). Figure 2-6. Enable and Apply Power Settings 10. Click Apply.
Powering the Receiver Charging Internal Batteries Use one of the following conditions for maximum battery charge speed: • The receiver is turned off. Power Mode and Charger Mode are set to Auto. See “Power Management” on page 2-5 for setting these parameters. • The receiver is turned on. Power Mode is set to External and Charger Mode is set to Auto. 1. To charge the internal batteries: • Plug the receiver-to-SAE power cable into the receiver’s power input port.
Configuration Checking Internal Battery Status To check the status of the internal batteries: 1. Check the BATT LED for battery status. • A green light indicates greater than 85% charge. • An orange light indicates an intermediate charge. • A red light indicates less than 15% charge. 2. Do one of the following: • Click on Configuration Receiver to view battery voltages on the Receiver Configuration screen. • Click on Help About to view battery voltages on the About PC-CDU screen.
Connecting the Receiver and a Computer Establishing a Wireless Connection The HiPer XT receiver contains Bluetooth wireless technology that allows file transfer and synchronization between the receiver and any other external device that supports Bluetooth wireless technology; for example, an iPAQ, or a computer with USB-to-Bluetooth adapter or PCMCA-to-Bluetooth adapter installed. NOTICE NOTICE Changing the receiver’s Port B default settings will affect the Bluetooth link.
Configuration If you cannot establish a connection, check that the receiver’s slot three is enabled. 1. Connect your receiver and a computer using an RS232 cable or USB cable and PC-CDU as seen below. 2. Click Configuration Receiver General. 3. In the Turn on/off Slots area, ensure the Slot 3 (B) check box is enabled. Establishing an RS232 Cable Connection 1. Using the RS232 cable, connect the serial port of your computer (usually COM1) to the receiver’s serial port A. 2.
Connecting the Receiver and a Computer Establishing a PC-CDU Connection PC-CDU is a Personal Computer-Control Display Unit software used to manage the various functions of your receiver. The full range of PC-CDU configuration and function is outside the scope of this manual. For more information on any of the procedures in this section or on PC-CDU, refer to the PC-CDU User’s Manual available on the TPS website. 1. Once the receiver and a computer are connected, start PC-CDU on your computer.
Configuration – Set the communication rate between the receiver and the computer (usually 115200) from the Baud rate dropdown list. Figure 2-8. Bluetooth and RS232 Connection Parameters • for USB connections (Figure 2-9): – Set the Connection mode (Direct). – Set the port for your computer (USB) from the Port dropdown list. – Select the receiver’s ID from the Rec ID drop-down list. Figure 2-9.
Receiver Configuration Once a PC-CDU connection with the receiver has been established, the current communications settings—such as, port name, baud rate (if applicable), and flow control (if applicable)—display in the lowerleft corner of the main window of PC-CDU. A timer begins to count up in the lower-right corner as well (Figure 2-10). Figure 2-10.
Configuration 1. Connect your receiver and computer. See “Connecting the Receiver and a Computer” on page 2-10 for this procedure. 2. Once connected, click Configuration Receiver (Figure 2-11). 3. Click the MINTER tab, configure the following settings, and click Apply (Figure 2-11). • Set the Recording interval in seconds. • Set the Elevation mask for Log file in degrees. • Enter the File name prefix. Use the last three digits of the receiver serial number.
Receiver Configuration 4. Click the Advanced tab then the Multipath Reduction tab, enable the following boxes, and click Apply (Figure 2-12). • Code multipath reduction • Carrier multipath reduction Figure 2-12. Receiver Configuration – Advanced Tab 5. Click the Loop Management tab, enable the following boxes, and click Apply (Figure 2-13). • Enable Co-Op tracking • Static Mode Figure 2-13. Advanced Configuration – Loop Management 6. Click OK to close the Receiver Configuration dialog box. 7.
Configuration NOTICE NOTICE Disconnecting the receiver from the computer before exiting will eliminate any possible conflict in the management of your serial ports. Once the receiver is configured, the configuration will remain until you change it either using PC-CDU or clearing the NVRAM. MINTER Configuration The Minimum INTERface (MINTER) consists of three keys (Power, FN, and Reset) and four LEDs (STAT, REC, BATT, and RX) that control and display the receiver’s operation (Figure 2-14).
MINTER Configuration • Show data recording status (REC led). • Show each time data is recorded to internal memory (REC led). • Show the status of post-processing mode (static or dynamic) when performing a Post-Processing Kinematic survey with the help of FN key (REC LED). • Show the status (high charge, intermediate charge, or low charge) of the battery (BATT LED). • Show the power source for the receiver (BATT LED). • Show the status of the modem and if it receives signals (RX LED).
Configuration • Elevation mask for log file on page 2-20 • File name prefix on page 2-21 • Always append to the file on page 2-21 • Files Creation mode on page 2-21 • Automatic File Rotation Mode (AFRM) on page 2-21 • FN key mode on page 2-23 • Initial data collection dynamic mode on page 2-23 • Data recording auto-start on page 2-23 Figure 2-16.
MINTER Configuration File Name Prefix parameter This parameter specifies the prefix added to the names of receiver files created when pressing FN. The prefix can be up to 20 characters long. The default value for the Name Prefix is “log”. Log file names have the following structure: The file name depends on both the file creation time (month and day) and additional letter suffixes to avoid confusion between files created on the same day.
Configuration default set of messages and the default output period are programmable. • Period – specifies the time duration of each log file created in AFRM mode. Values are 60 to 86400 seconds; default value is 3600 seconds. • Phase – specifies the “phase” (constant time shift) of creating multiple log files in AFRM mode. Values are 0 to 86400 seconds; default value is zero seconds.
MINTER Configuration FN Key Mode parameter Use these two radio buttons to program how the receiver will react when pressing the FN key. • LED blink mode switch – pressing FN will toggle between the MINTER’s normal/extended information modes and start/ stop data recording of Static survey. – FN pressed for less than 1 second: changes the information mode (Normal or Extended Information (EI) Modes). – FN pressed for 1 to 5 seconds: starts or stops data recording (Static post-processing mode).
Configuration Table 2-2. Data Recording Parameter Behavior Before Power Failure Enabled Radio Button Results Off On Always 1 Receiver data logged to file specified. Data logging will not resume when power is restored. Receiver will resume data logging to the same file when power is restored. Receiver will resume data logging to the same file when power is restored. 2 Receiver data logged to default file. Data logging will not resume when power is restored.
Radio Configuration Radio Configuration Modem-TPS is Topcon’s radio modem configuration utility for modems embedded in HiPer family receivers. Modem-TPS provides the following functions: • Connecting a PC to an integrated radio modem via a serial port or Bluetooth wireless technology. • Displaying information about the radio modem installed in the receiver. • Programming the radio modem’s settings.
Configuration 1. Navigate to the location of the Modem-TPS program and doubleclick the Setup.exe icon. 2. Keep the default installation location or select a new location. Click Finish. Figure 2-17. Select Modem-TPS Installation Location and Install 3. Click OK to complete the installation. 4. If desired, create a shortcut on the computer’s desktop for quick access to Modem-TPS (Figure 2-18). Figure 2-18.
Radio Configuration Configuring a Base Station’s UHF Radio Modem NOTICE NOTICE To comply with RF exposure requirements, maintain at least 25cm between the user and the radio modem. For HiPer XT receivers, the integrated TPS UHF radio modem provides TX/RX UHF communications between a Base Station and Rover. To configure the UHF radio modems, have the following ready: • Computer running Windows® 98 or newer • Modem-TPS ver 1.7 or newer • Serial cable (or Bluetooth wireless technology capabilities) 1.
Configuration When finished configuring the radio modem, always disconnect from Modem-TPS before exiting to prevent conflicts with serial port management. There are two scenarios for configuring the radio-modem: • with a dedicated channel • with the FCS mode Set Radio Link Parameters for a Dedicated Channel 1. From the Protocol control, select between TPS and PDL. • TPS – Select this protocol if all of the radio-modems at your jobsite are manufactured by Topcon Positioning Systems.
Radio Configuration 6. For a maximum data communication reliability, select the Forward Error Correction checkbox. With this parameter enabled, the rover radio-modem has the capability to check and correct transmission errors (if any) in an incoming data stream. NOTICE NOTICE While providing error control in data transmission, FEC adds redundant check bits to the data stream reducing data throughput. If you are going to use FEC and a format of differential messages requires a great deal of data (e.g.
Configuration 9. From the Output Power control, select the level of RF transmit power from 10 mW to 2 W. Figure 2-20. Radio Link Tab 10. Click the Serial Interface tab and select a baud rate for the modem’s serial port. The same rate must be used for both the receiver and the modem. Figure 2-21. Serial Interface Tab 11. Click Apply, then click on File and select Disconnect. If you want to close the program, click File->Exit. 12. Launch PC-CDU and set up the receiver to run as an RTK Base Station.
Radio Configuration Set Radio Link Parameters for Free Channel Scan 1. From the Protocol control, select TPS. 2. From the Modulation Type control, select a modulation scheme that will be used by your base radio-modem. It can be either 4Level-FSK (Frequency Shift Keying) or GMSK (Gaussian Minimum Shift Keying). The following table shows you what modulation technique can be used at a specific link rate. If the Link Rate is... 4800 baud Use...
Configuration 6. From the Protocol Mode control, select the appropriate link protocol among the following available: • Transparent w/EOT Character • Transparent w/EOT Timeout • Fast Async 7. If you select Transparent w/EOT Character, the EOT Character (Dec) field will display. In this field enter a decimal value (usually a control character). Once the specified character is found in the incoming data stream, the modem begins data transmission.
Radio Configuration 13. In the Noise Level field, specify a threshold value for the noise level. • High – sets the noise level to -70 dBm. Recommended in noisy environments. • Medium – sets the noise leve to -85dBm. Recommended in most environments. • Low – sets the noise level to -100 dBm. Recommended in low-noise environments. The base radio-modem regularly scans the current operating frequency to determine the degree of a radio noise/interference on this frequency.
Configuration 14. Click the Serial Interface tab and select a baud rate for the modem’s serial port. The same rate must be used for both the receiver and the modem. 15. Click Apply, then click on File and select Disconnect. If you want to close the program, click File Exit. 16. Launch PC-CDU and set up the receiver to run as an RTK Base Station. For how to set up an RTK Base using PC-CDU, refere to your receiver’s documentation or PC-CDU User’s Manual.
Radio Configuration 2. From the Modulation Type control, select a modulation scheme that will be used by your rover radio-modem. It can be either 4Level-FSK (Frequency Shift Keying) or GMSK (Gaussian Minimum Shift Keying). The following table shows you what modulation technique can be used at a specific link rate. If the Link Rate is... 3. 4. 5. 6. Use... 4800 baud GMSK 9600 baud GMSK or 4-Level-FSK 19200 baud 4-Level-FSK Must be the same for base and rover.
Configuration ensure reliable radio communication between the base and rover receivers. 7. From the Protocol Mode control, select the appropriate link protocol among the following available: • Transparent w/EOT Character • Transparent w/EOT Timeout • Fast Async Use the same protocol as at the base station. 8. From the Output Power control, set the level of RF transmit power to 10 mW. Figure 2-23. Radio Link Tab 9. Click the Serial Interface tab and select a baud rate for the modem’s serial port.
Radio Configuration Set Radio Link Parameters for Free Channel Scan 1. From the Protocol control, select TPS. 2. From the Modulation Type control, select a modulation scheme that will be used by your rover radio-modem. It can be either 4Level-FSK (Frequency Shift Keying) or GMSK (Gaussian Minimum Shift Keying). The following table shows you what modulation technique can be used at a specific link rate. If the Link Rate is... 4800 baud Use...
Configuration ensure reliable radio communication between the base and rover receivers. 6. From the Protocol Mode control, select the appropriate link protocol among the following available: • Transparent w/EOT Character • Transparent w/EOT Timeout 7. 8. 9. 10. 11. 12. • Fast Async Use the same protocol as at the base station. If you select Transparent w/EOT Character, the EOT Character (Dec) field will be displayed. In this field enter a decimal value (usually a control character).
Radio Configuration 13. In the Time Out edit box, specify a period of time in seconds within which the rover radio-modem will listen to the incoming data on the current operating frequency. Should there be no any data detected during the specified amount of time, the rover will switch to the next frequency in the list and so forth until the frequency with data is found. NOTICE NOTICE It is recommended to make this parameter greater than the base radio-modem’s Time out by 2 to 3 seconds. Figure 2-24.
Configuration Configuring a Base Station’s GSM Module with Modem-TPS NOTICE NOTICE To comply with RF exposure requirements, maintain at least 25cm between the user and the GSM radio modem. 1. Repeat steps 1-4 from page page 2-27. When finished configuring the GSM module, always disconnect from Modem-TPS before exiting to prevent conflicts with serial port management. 2. Click the GSM tab. 3. In the Mode control, select Slave. 4. In the PIN field, enter a Personal Identification Number (PIN) if required.
Radio Configuration Figure 2-25. GSM Tab 7. Click the Serial Interface tab and select a baud rate for the modem’s serial port. The same rate must be used for both the receiver and the modem. 8. Click Apply, then click on File and select Disconnect. If you want to close the program, click File->Exit. 9. Launch PC-CDU and set up the receiver to run as an RTK Base Station. For how to set up an RTK Base using PC-CDU, refere to your receiver’s documentation or PC-CDU User’s Manual.
Configuration 4. In the PIN field, enter a Personal Identification Number (PIN) if required. 5. In the Dial field, enter the phone number of the base GSM modem. 6. In the Send time field, enter a period of time in seconds with which the rover GSM modem will send a service word to the base GSM modem. This parameter is used to maintain reliable communication between the pair of modems and avoid unnecessary modem reinitialization.
Bluetooth Module Configuration Bluetooth Module Configuration Use BTCONF, Topcon’s Bluetooth module’s configuration program, and your computer to: • access the Bluetooth wireless technology module • configure the Bluetooth module • check or change the module’s configuration To access the Bluetooth wireless technology module, first download and install BTCONF, then connect your computer and the receiver and run the configuration program. 1. Create or locate the following folder: C:\Program Files\TPS\BTCONF
Configuration 2. Run the Bluetooth module configuration program (Btconf.exe) (Figure 2-27). Figure 2-27. Bluetooth Module Configuration Main Screen Notice that the lower left corner shows a “Disconnected” status for the computer and Bluetooth module. For BTCONF version and copyright information, click the About button. 3. From the drop-down list in the upper left corner, select the computer serial port (usually COM1) used for communication (Figure 2-28 on page 2-44). 4.
Bluetooth Module Configuration Once the receiver and computer connect through BTCONF, the Identification tab (Figure 2-29) displays the following information: • Bluetooth name – the name of the Bluetooth module, set in the Parameters tab. • Bluetooth address – the unique electronic address for your Bluetooth module. • Firmware version – the current firmware version of the Bluetooth module. Figure 2-29. BTCONF Identification Tab The COM port and baud rate display in the lower left corner. 5.
Configuration 6. Enter up to 14 characters to set a unique name for the Bluetooth module (Figure 2-30), and click Apply. Figure 2-30. BTCONF Parameters Tab 7. To set security parameters (Figure 2-31 on page 2-47), enter and enable the following, then click Apply: • Bluetooth PIN – enter up to 16 characters to specify a personal identification number for the Bluetooth module. • Encryption – enable to have the Bluetooth module encrypt wirelessly sent data.
Bluetooth Module Configuration Figure 2-31. BTCONF Security Parameters 8. Click the Serial Interface tab (Figure 2-32). Enable Echo to display Bluetooth module replies and corresponding commands on the computer terminal. If needed, click Apply. Figure 2-32.
Configuration 9. Click Disconnect then Exit (Figure 2-33) to quit BTCONF. Figure 2-33. Click Disconnect then Exit Collecting Almanacs Each satellite broadcasts a message (almanac) which gives the approximate orbit for itself and all other satellites. If the receiver has an almanac, you can considerably reduce the time needed to search for and lock on to satellite signals. The receiver regularly updates the almanac and stores the most recent almanac in its Non-Volatile Random Access Memory (NVRAM). 1.
Collecting Almanacs You will need to collect or update the almanac under the following circumstances: • If the receiver has been off for a long time. • If the last known receiver position, stored in the NVRAM, is different from the present position by several hundred kilometers. • After loading a new OAF. • After loading new firmware. • After clearing the NVRAM. • Before surveying.
Configuration 2-50 HiPer XT Operator’s Manual
Chapter 3 Setup and Survey This chapter describes: • Receiver setup • RTK Base station setup • RTK Rover setup • Basic surveying with the HiPer XT receiver The HiPer XT package use one receiver as the Base station and the other as the Rover station. Receiver Setup NOTICE NOTICE Note that the UHF radio and the GSM radio do not work simultaneously. Only one radio may be used at a time. To set up the receivers, you must: 1. Configure the receivers as shown in Chapter 2. 2.
Setup and Survey Step 1: Set up the Receiver This section assumes the receiver has already been configured. 1. Place the receiver on the appropriate tripod or bipod. 2. Center the receiver over the point at which data will be collected. For most applications, this should be at a location with a clear view of the sky.
Receiver Setup 30.50mm SHMM ARP 77.75mm Figure 3-1. HiPer XT Antenna Offsets • SHMM to ARP vertical offset = 30.50mm • SHMM to ARP horizontal offset = 77.75mm Table 3-1gives the offset values for the receivers. Table 3-1. Antenna Offset Values for Receiver Options To L1 Phase Center Up 105.9mm To L2 Phase Center 97.1mm The point to which surveying with GPS/GLONASS measures is called the Phase Center of the antenna. This is analogous to the point at which a distance meter measures in a prism.
Setup and Survey 3. Press the power key and release it to turn the receiver on. The STAT (status) light (LED) will blink red at first. 4. Once the receiver has locked on to one or more satellites, the STAT light will blink green for GPS satellites, orange for GLONASS satellites, and a short red blink indicating it has not solved a position. Four or more satellites provide optimal positioning. 5. Once the short red blink is gone, the receiver has a position and surveying can begin.
Surveying with the Receiver Surveying with the Receiver The receiver can be used to perform Static, Kinemati, and Real-time kinematic (RTK) surveying. NOTICE NOTICE To comply with RF exposure requirements, maintain at least 25cm between the user and the radio modem. Static Survey Static surveying is the classic survey method, well suited for all kinds of baselines (short, medium, long).
Setup and Survey greater accuracy than single-frequency receivers over long baselines or during ionospheric storms. Secondly, dual-frequency receivers need far less observation time to reach the desired accuracy requirement. After the survey completes, data the receivers collect can be downloaded onto a computer and processed using post-processing software (for example, Topcon Tools). The procedure that follows describes the steps the operator should take to perform a Static Survey using MINTER. 1.
Surveying with the Receiver 3. Click the Advanced tab and then the Multipath tab, set the following parameters, then click Apply (Figure 3-3): • Code multipath reduction – enable • Carrier multipath reduction – enable Figure 3-3. Configure Multipath 4. Click the Loop Management tab and set the following parameters, then click Apply (Figure 3-4): • Enable Co-Op tracking – enable • Static mode – enable Figure 3-4. Configure Loop Management 5.
Setup and Survey Kinematic (Stop and Go) Survey In a kinematic, stop and go survey, the stationary receiver (Base station) is set up at a known point such as a survey monument, or an unknown point. The receiver continually tracks satellites and logs raw data into its memory. The rover receiver is set up at an unknown point and collects data in static mode for 2 to 10 minutes. When finished, assign the Rover to kinematic status and move to the next survey point.
Surveying with the Receiver 3. Set up the Rover at an unknown point and press power. Allow the Rover to collect static data for two to ten minutes. The REC LED will be orange. 4. Check the STAT light for satellites tracked. 5. When finished, press the FN key for less than a second to assign the Rover to kinematic. TIP TIP Remember, if the REC LED blinks green, the current mode is dynamic, if it blinks orange, the current mode is static. 6.
Setup and Survey 3. Check the STAT light for tracked satellites. 4. Connect your receiver and computer. See “Connecting the Receiver and a Computer” on page 2-10 for this procedure. 5. Click Configuration Receiver. 6. Click Set all parameters to defaults (Figure 3-6). Figure 3-6. Set All Parameters to Defaults 7. On the Receiver Configuration screen, click the MINTER tab and specify the desired settings. Refer to the PC-CDU User’s Manual for more information. 8.
Surveying with the Receiver 9. Select the Base tab, set the following parameters (Figure 3-8), and click Apply: • GPS/GLO at one time – enable • Antenna position – enter Lat, Lon, and Alt values. Do one of the following: – If known, type in the values. – Enable Averaged and enter the Averaged Span in seconds, then click Apply. Click Tools Reset receiver and wait until the specified interval (span) completes.
Setup and Survey 10. Click the Ports tab and set the following port parameters for the serial port (Figure 3-9). • Output drop-down list – select type and format of differential corrections. • Period (sec) – enter interval at which receiver will generate differential corrections. • Baud rate drop-down list – select a baud rate (i.e., the rate at which differential messages will be transmitted from receiver to modem). • RTS/CTS – select to enable handshaking. TIP TIP Use a 38400 baud rate. Figure 3-9.
Surveying with the Receiver Set up an RTK Rover Use the following steps to set up an RTK Rover station. You should already have programmed the modem. Figure 3-10 shows the hardware setup for a Rover station with an external controller. Figure 3-10. Rover Station Setup 1. Set up the Rover station receiver’s antenna as described in “Receiver Setup” on page 3-1. 2. Connect the receiver and computer. See “Connecting the Receiver and a Computer” on page 2-10. 3. Click Configuration Receiver. 4.
Setup and Survey 5. Click the Rover tab and set the desired Positioning Mode (Figure 3-11). Figure 3-11. Rover Configuration Adjust the following RTK Parameters settings: • Under RTK mode in the RTK Parameters section, choose either Extrapolation for RTK float (kinematic) or Delay for RTK fixed (static). – Extrapolation is for low-latency, high frequency output (>= 5 Hz) RTK applications.
Surveying with the Receiver and High correspond to the indicator's 95%, 99.5% and 99.9% states, respectively. The higher the specified confidence level, the longer the integer ambiguity search time 6. Click the Ports tab and set the following parameters for the serial port (Figure 3-12): • Input drop-down list – select the desired differential correction format. • Period (sec) – leave as is. • Baud rate drop-down list – select a baud rate (i.e.
Setup and Survey 9. On the main screen (Figure 3-13), check the LQ field to ensure the receiver obtains differential corrections. Usually, the receiver will start to output the coordinates of the antenna’s phase center along with the solution type within 10–30 seconds. However, spread spectrum radios may take as long as 60 seconds to synchronize. Figure 3-13. PC-CDU Main Screen The geodetic coordinates displayed on the Geo tab are always computed in WGS84 and have four solution types.
Surveying with the Receiver • Total number of received correct messages (dependent on the message type received) • Total number of received corrupt messages (dependent on the message type received) If the receiver is not (for some reason) receiving differential corrections, or if none of the ports has been configured to receive differential corrections, the LQ field will either be empty or it will look like this: 100%(999,0000,0000).
Setup and Survey Notes: 3-18 HiPer XT Operator’s Manual
