GETTING STARTED GUIDE Trimble SPS855 GNSS Receiver Version 4.
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c/o Menlo Worldwide Logistics Meerheide 45 5521 DZ Eersel, NL Unlicensed radios in products 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. Licensed radios in products This device complies with part 15 of the FCC Rules.
Safety Information Before you use your Trimble product, make sure that you have read and understood all safety requirements. WARNING – This alert warns of a potential hazard which, if not avoided, could result in severe injury or even death. CAUTION – This alert warns of a potential hazard or unsafe practice that could result in minor injury or property damage or irretrievable data loss. Note – An absence of specific alerts does not mean that there are no safety risks involved.
Unauthorized modification of the units voids the Type approval, the warranty, and the operational license of the equipment. Exposure to radio frequency radiation For 450 MHz radio Safety. Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment as a result of its actions in General Docket 79-144 on March 13, 1986.
For GSM/GPRS radio Safety. Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment as a result of its actions in General Docket 79-144 on March 13, 1986. Proper use of this radio modem results in exposure below government limits. The following precautions are recommended: l DO NOT operate the transmitter when someone is within 28 cm (11 inches) of the antenna.
discoloration, warping, and leaking battery fluid. – Do not expose the battery to fire, high temperature, or direct sunlight. – Do not immerse the battery in water. – Do not use or store the battery inside a vehicle during hot weather. – Do not drop or puncture the battery. – Do not open the battery or short-circuit its contacts. WARNING – Avoid contact with the rechargeable Lithium-ion battery if it appears to be leaking.
Contents Safety Information Use and care Regulations and safety Type approval Exposure to radio frequency radiation Installing antennas Battery safety Wet locations Introduction Related information Technical support Batteries and power Batteries External power Front panel guide Keypad and display Button operations Power button operations Status screens SPS85x configuration screens SPS85x mode screens SPS85x status screens Configuring system settings Turning off AutoBase technology Signal tracking Variable c
Introduction The Trimble SPS855 GNSS Modular receiver is ideal for the following site development and construction applications: l Base station for precision GNSS applications such as site positioning and machine control l Location RTK for site vehicle and supervisors l Precision RTK rover on-site l System integrator applications using Location GNSS augmentation, including OmniSTAR, Location RTK, SBAS, and DGPS RTCM and Precision RTK The receiver has a keypad and display, so you can configure the re
The receiver can also be powered by an external power source that is connected to the Lemo or modem port. All battery operation tests are carried out with new, fully-charged batteries at room temperature and with full receiver configuration operational. Older batteries, at temperatures significantly higher or lower than room temperature, will have a reduced performance. Receivers operating with reduced configuration will have a higher performance.
it before use. WARNING – Charge and use the rechargeable Lithium-ion battery only in strict accordance with the instructions. To prevent injury or damage: – Discontinue charging a battery that gives off extreme heat or a burning odor. – Never attempt to remove, replace, or repair the battery yourself. – If the battery requires attention, send the receiver to an authorized Trimble Service Center. The internal battery charges fully in 8 hours when connected to a suitable power source.
External power Sources of external power include: l AC power l 12 V vehicle battery l Trimble custom external battery pack l Generator power l Solar panel The receiver uses an external power source in preference to its internal batteries. If the receiver is not connected to an external power source, or if the external power supply fails, the internal batteries are used.
Shut-down voltage is temperature-compensated and is designed to prolong the life of a lithium-ion battery. The external DC voltage supply can be used by the receiver if it is in the range stated by the label on the receiver. Connecting the receiver to a vehicle battery WARNING – Use caution when connecting battery cable's clip leads to a vehicle battery.
Item Feature Description settings. 4 Bluetooth antenna Location of the Bluetooth antenna. Button operations Use the buttons on the front panel to turn the receiver on and off and to check or change the receiver settings. Button Name Function Power Turns the receiver on and off and performs reset operations. Escape Returns to the previous screen or cancels changes being made on a screen. Enter Advances to the next screen or accepts changes made on a screen.
To... Hold the Power button for... Notes default application file force the receiver to power down ephemeris. When the counter reaches 0, continue to hold the Power button. The display indicates a countdown to resetting the receiver. When the counter reaches 0, release the Power button. at least 60 seconds If the reset method above does not work, use this method to force the receiver to turn off. When the Power LED goes off, release the Power button.
SPS85x configuration screens SPS855 GNSS Modular Receiver Getting Started Guide 16
SPS85x mode screens SPS855 GNSS Modular Receiver Getting Started Guide 17
SPS85x status screens SPS855 GNSS Modular Receiver Getting Started Guide 18
Configuring system settings You can use the keypad and display of the receiver to configure the following settings: l Display language l Display and input units l Baud rate, parity, data bits, and stop bits for serial ports l Display power saver l AutoBase l Set position precisions To access the system settings: 1. In the Home screen, press . Use the Operation Mode screen to configure system settings or mode settings, and to view the SV (satellite) status. Mode Settings is the default setting.
Turning off AutoBase technology To turn off AutoBase technology, use either the receiver’s keypad and display or the web interface. When AutoBase technology is off, you can establish a new base station position in the receiver using the Edit Current or New Base (Here) menus. This does not automatically generate a new application file, but changes the settings in the current application file. When the receiver is turned on again, the most recent settings are always used.
Signal tracking This table shows the signal tracking capability for the SPS855 receiver: Signal Type Class SPS855 (Construction and Marine) GPS signals L1 Yes L2 Yes L2C Yes L5 Optional QZSS L1 C/A, L1C, L1 SAIF, L2C, L5 Yes (L5 optional) GLONASS signals L1, L2 Optional Galileo L1 CBOC, E5A, E5B, and E5AltBOC8 Optional Compass B1, B2, B3 Optional SBAS corrections WAAS Yes EGNOS Yes MSAS Yes XP Yes HP Yes G2 Yes VBS Yes MSK No OmniSTAR corrections Beacon corrections
Variable configuration options This table lists the default options for the receiver: Configuration Option SPS555H SPS855 Precise horizontal - Optional Precise vertical - Optional Moving Base/Heading Yes Optional Location RTK - Optional RTCM DGPS - Optional Moving Base RTK range limit 2.
Managing application files You can use the front panel to manage application files in the receiver. You can see which application file the receiver is currently using and then choose to make changes to it and save it, load a different application file, or delete an application file. To manage the application files, use the System Setupmenu. You can only manage application files when the AutoBase feature is turned off.
Default receiver settings All settings are stored in application files. The default application file, Default.cfg, is stored permanently in the receiver, and contains the factory default settings. Whenever the receiver is reset to its factory defaults, the current settings (stored in the current application file, Current.cfg) are reset to the values in the default application file. You cannot modify the default application file.
Resetting the receiver to factory defaults To reset the receiver to its factory defaults, do one of the following: l l l Press for 15 seconds. In the GPS Configurator software, select Connect to Receiver and then click Reset Receiver in the General tab. In the Configuration Toolbox software, select the General tab and then click Reset Receiver.
Adding radio frequencies Adding frequencies for the 450 MHz internal radio using the WinFlash utility If your receiver has the optional internal radio installed, you can use the WinFlash utility to add receiving frequencies to the default list. You can also use the web interface to add and manage receiver 450 MHz frequencies. If you purchase a transmit upgrade (after initial purchase), the broadcast frequencies must be programmed using a .set file obtained from a Trimble service provider. 1.
3. Make a note of the details shown in the Frequency range and Tuning step fields. Any new frequencies must be within the range shown and must also be a multiple of the KHz shown in the Tuning step field. 4. Select the Add Channel option and then enter the new channel frequency. 5. Click OK . To delete a channel frequency: 1. Select the Delete channel option. 2. Select a channel to delete from the list that appears. You cannot add or delete Transmit (Tx) channels using the web interface.
Troubleshooting receiver issues This section describes some possible receiver issues, possible causes, and how to solve them. Please read this section before you contact Technical Support. The receiver does not turn on Possible cause Solution External power is too low. Check the charge on the external power supply, and check the fuse if applicable. If required, replace the battery. Internal power is too low. Do the following: External power is not properly connected. Faulty external power cable.
Possible cause Solution software. four satellites. The data logging option is not enabled. l Go to the SkyPlot screen and press Ctrl+M to access the current elevation mask settings. Reduce the mask value to make more satellites available. l The default mask setting for receiver is 10° above the horizon. Change the value to a lower setting temporarily while you are waiting for a better constellation availability.
Glossary 1PPS Pulse-per-second. Used in hardware timing. A pulse is generated in conjunction with a time stamp. This defines the instant when the time stamp is applicable. almanac A file that contains orbit information on all the satellites, clock corrections, and atmospheric delay parameters.
corrections resulting from more satellite signals, more constellations, and more satellites. Its compactness means more repeaters can be used on a site. Compass The BeiDou Navigation Satellite System (Compass) is a Chinese satellite navigation system. The first BeiDou system (known as BeiDou-1), consists of three satellites and has limited coverage and applications. It has been offering navigation services mainly for customers in China and from neighboring regions since 2000.
which indicate the accuracy of horizontal measurements (latitude and longitude) and vertical measurements respectively. PDOP is related to HDOP and VDOP as follows: PDOP² = HDOP² + VDOP². dual-frequency GPS A type of receiver that uses both L1 and L2 signals from GPS satellites. A dualfrequency receiver can compute more precise position fixes over longer distances and under more adverse conditions because it compensates for ionospheric delays. EGNOS European Geostationary Navigation Overlay Service.
GNSS Global Navigation Satellite System. GSOF General Serial Output Format. A Trimble proprietary message format. HDOP Horizontal Dilution of Precision. HDOP is a DOP value that indicates the accuracy of horizontal measurements. Other DOP values include VDOP (vertical DOP) and PDOP (Position DOP).
number of 'strings' referred to as NMEA strings that contain navigational details such as positions. Most Trimble GNSS receivers can output positions as NMEA strings. NTrip Protocol Networked Transport of RTCM via Internet Protocol (NTrip) is an application-level protocol that supports streaming Global Navigation Satellite System (GNSS) data over the Internet. NTrip is a generic, stateless protocol based on the Hypertext Transfer Protocol (HTTP). The HTTP objects are extended to GNSS data streams.
real-time differential GPS Also known as real-time differential correction or DGPS. Real-time differential GPS is the process of correcting GPS data as you collect it. Corrections are calculated at a base station and then sent to the receiver through a radio link. As the rover receives the position it applies the corrections to give you a very accurate position in the field. Most real-time differential correction methods apply corrections to code phase positions.
All NTripClients must be able to decode record type STR. Decoding types CAS and NET is an optional feature. All data fields in the source-table records are separated using the semicolon character. triple frequency GPS A type of receiver that uses three carrier phase measurements (L1, L2, and L5). UTC Universal Time Coordinated. A time standard based on local solar mean time at the Greenwich meridian. VRS Virtual Reference Station.
