GETTING STARTED GUIDE Trimble SPS852 Modular GPS Receiver Version 4.
SPS852 Getting Started Guide Table of Contents Introduction ........................................................................................................................................................... 3 Related information .......................................................................................................................................... 3 Technical support ..................................................................................................................
Introduction Trimble SPS852 Modular GPS receivers are ideal for the following site development and construction applications: • Base station for precision GPS applications such as site positioning and machine control • Location RTK for site vehicle and supervisors • Precision RTK rover on-site • System integrator applications using Location GPS augmentation, including OmniSTAR, Location RTK, SBAS, and DGPS RTCM and Precision RTK The receiver has a keypad and display, so you can configure the receive
Safety Information Before you use your Trimble product, make sure that you have read and understood all safety requirements. Use and care This product is designed to withstand the rough treatment and tough environment that typically occurs in construction applications. However, the receiver is a high-precision electronic instrument and should be treated with reasonable care. Caution – Operating or storing the receiver outside the specified temperature range can damage it.
SPS852 Getting Started Guide • DO NOT operate the transmitter when someone is within 20 cm (7.8 inches) of the antenna. • DO NOT operate the transmitter unless all RF connectors are secure and any open connectors are properly terminated. • DO NOT operate the equipment near electrical blasting caps or in an explosive atmosphere. All equipment must be properly grounded according to Trimble installation instructions for safe operation. All equipment should be serviced only by a qualified technician.
Glossary Installing antennas Caution – For your own safety, and in terms of the RF exposure requirements of the FCC, always observe these precautions: – Always maintain a minimum separation distance of 20 cm (7.8 inches) between yourself and the radiating antenna. – Do not co-locate the antenna with any other transmitting device. Warning – The GPS antenna and its cabling should be installed in accordance with all national and local electrical codes, regulations, and practices.
SPS852 Getting Started Guide WARNING – Charge and use the rechargeable Lithium-ion battery only in strict accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire, and can result in personal injury and/or equipment damage. To prevent injury or damage: – Do not charge or use the battery if it appears to be damaged or leaking. – Charge the Lithium-ion battery only in a Trimble product that is specified to charge it.
Glossary Use of Power over Ethernet WARNING – When this product is connected to a Power over Ethernet connection, the source of the Ethernet power must meet IEEE 802.11af, and its DC output (Ethernet power source) must be completely isolated from earth ground (floating), or a shock hazard may exist. WARNING – The external power adaptor and its associated power cord and plug are not intended to be installed outdoors, or in a wet location. 1. 900 MHz radios are not used in Europe. 2. 2.
SPS852 Getting Started Guide Batteries and Power The receiver has one internal rechargeable Lithium-ion battery. The operational time provided by the internal battery depends on the type of measurement and operating conditions. Typically, the internal battery provides 10 hours operation as a base station and 12 hours as a rover during measurement operations using the internal radio. The receiver can also be powered by an external power source that is connected to the Lemo or modem port.
Glossary Warning – Charge and use the rechargeable Lithium-ion battery only in strict accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire, and can result in personal injury and/or equipment damage. To prevent injury or damage: – Do not charge or use the battery if it appears to be damaged or leaking. – Charge the Lithium-ion battery only in a Trimble product that is specified to charge it.
SPS852 Getting Started Guide All batteries discharge over time when not in use, and they discharge faster in colder temperatures. Do not store the receiver at temperatures outside the range –40 °C to +70 °C (–40 °F to +158 °F). Power over Ethernet (PoE) The receiver is a PoE-capable device and can be powered using a single Ethernet cable from an IEE802.
Glossary 67384 7-pin Lemo Cable with DC plug Power to host devices from AC adapter Serial to serial for Moving Base applications 57167 26-pin Adapter with DC plug Power from AC adapter USB(B) socket and Ethernet socket 57168 26-pin Adapter with DC plug Power from AC adapter Serial and Ethernet socket 60789-00, 77070-00 26-pin Cable with DC plug Power from AC adapter 2 x Serial, Ethernet plug, USB(A) plug, 1PPS (BNC) 65791-00, 78235-00 26-pin Cable with DC plug Power from AC adapter 2
SPS852 Getting Started Guide Keypad and display Feature 1 Power button Indicates if the receiver is turned on or off. 2 Buttons Used to turn on and configure the receiver. 3 Display The receiver has a Vacuum Fluorescent Display that enables you to see how the receiver is operating and view the configuration settings. 4 14 Description Bluetooth antenna Location of the Bluetooth antenna.
Glossary 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. Up Moves the cursor between multiple fields on a screen or makes changes to an editable field.
SPS852 Getting Started Guide Power button operations Press the Power button to turn the receiver on and off. In addition, you can tap Home screen, or hold down to return to the to perform the following operations: button Notes To … Hold the for … turn off the receiver two seconds The display shows a countdown timer. When the display goes blank, release the Power button. 15 seconds The display show a countdown timer. When the display goes blank, continue to hold the Power button.
Glossary Home screen The Home screen is the main screen displayed on the receiver. If the receiver displays another screen and is left idle for 60 seconds, you are returned to the Home screen. It shows the following information: • Number of satellites being tracked: • When the receiver is in Base mode, the Home screen displays the number of satellites in view, that is, all satellites above the elevation mask.
SPS852 Getting Started Guide • Beacon status and frequency If the receiver is using MSK Beacon corrections, the Home screen displays the status of the signal and the frequency of the beacon station: 18
Glossary Status screens The receiver has several view-only status screens that allow you to review the current settings of the receiver.
SPS852 Getting Started Guide Configuring system settings You can use the keypad and display of the receiver to configure the following settings: • Display language • Display and input units • Baud rate, parity, data bits, and stop bits for serial ports • Display power saver • AutoBase warning • 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.
Glossary Turning off AutoBase technology You can turn off AutoBase technology using either the receiver’s keypad and display or the web interface (see Receiver Configuration menu). 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.
SPS852 Getting Started Guide SPS852 signal tracking This table shows the signal tracking capability for the SPS852 receiver.
Glossary 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 Setup menu (see the figure below). You can only manage application files when the AutoBase feature is turned off.
SPS852 Getting Started Guide Default 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.
Glossary Default behavior If a power-up application file is present in the receiver, its settings are applied immediately after the default settings. This means you can use a power-up file to define your own set of defaults. The factory defaults are also applied when you perform a full reset of the receiver because resetting the receiver deletes the power-up files.
SPS852 Getting Started Guide Adding Radio Frequencies If you have the optional internal 450 MHz receive radio in your GPS receiver, use the WinFlash utility to add the relevant receive frequencies to the default list of frequencies. You can also use the web interface to add and manage receive 450 MHz frequencies. If you have a receiver with the transmit option, Trimble must specify and configure the (FCCapproved) transmit broadcast frequencies at the factory. You cannot configure these yourself.
Glossary 6. 7. In the Wireless Format group, select the appropriate channel and wireless mode. The Wireless mode must be the same for all radios in your network. 8. In the Specify Frequency field, enter the frequency you want to add. 9. Click Add. The new frequency appears in the Selected Frequencies list. Note - The programmed frequencies must conform to the channel spacing and minimum tuning requirements for the radio. To view this information, click Radio Info. You can select 12.
SPS852 Getting Started Guide Setting UHF reception radio frequencies using the web interface To enter your own Receive (Rx) frequency using the web interface: 1. Select the Radio menu. 2. Select the Frequency Management submenu. 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 K Hz shown in the Tuning step field. 4. Select the Add Channel option and then enter the new channel frequency.
Glossary Troubleshooting This section describes some possible receiver issues, possible causes, and how to solve them. Please read this section before you contact Technical Support. Issue Possible cause The receiver does not turn on External power is too low. Internal power is too low. External power is not properly connected. Faulty external power cable. Receiver does not log data Insufficient memory in the internal memory.
SPS852 Getting Started Guide 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.
Glossary For example, maps in Europe are often based on the European datum of 1950 (ED-50). Maps in the United States are often based on the North American datum of 1927 (NAD-27) or 1983 (NAD-83). All GPS coordinates are based on the WGS-84 datum surface. deep discharge Withdrawal of all electrical energy to the end-point voltage before the cell or battery is recharged. DGPS See real-time differential GPS.
SPS852 Getting Started Guide GIOVE Galileo In-Orbit Validation Element. The name of each satellite for the European Space Agency to test the Galileo positioning system. GLONASS Global Orbiting Navigation Satellite System. GLONASS is a Soviet space-based navigation system comparable to the American GPS system. The operational system consists of 21 operational and 3 non-operational satellites in 3 orbit planes. GNSS Global Navigation Satellite System. GSOF General Serial Output Format.
Glossary messages and adjusted to low-bandwidth streaming data. The NTripCaster accepts request messages on a single port from either the NTripServer or the NTripClient. Depending on these messages, the NTripCaster decides whether there is streaming data to receive or to send. Trimble NTripCaster integrates the NTripServer and the NTripCaster. This port is used only to accept requests from NTripClients.
SPS852 Getting Started Guide RTK real-time kinematic. A real-time differential GPS method that uses carrier phase measurements for greater accuracy. SBAS Satellite-Based Augmentation System. SBAS is based on differential GPS, but applies to wide area (WAAS/EGNOS/MSAS) networks of reference stations. Corrections and additional information are broadcast via geostationary satellites. signal-to-noise ratio SNR.
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SPS852 Getting Started Guide Immediate access to satellite measurements and navigation results is disabled when the receiver velocity is computed to be greater than 1,000 knots, or its altitude is computed to be above 18,000 meters. The receiver GPS subsystem resets until the COCOM situation clears. As a result, all logging and stream configurations stop until the GPS subsystem is cleared. Notices Class B Statement – Notice to Users.
Legal Notices The product contains a removable Lithium-ion battery. Taiwanese regulations require that waste batteries are recycled.
