Novatel OM-20000141 user manual Connect the Antenna to the SPAN-IGM, Connect Power

Page 19

SPAN Installation

Chapter 2

2.3.3Connect the Antenna to the SPAN-IGM

Connect the antenna cable from the connector on the GNSS antenna to the Antenna port on the SPAN-IGM. See Figure 3, Typical SPAN-IGM Set Up – Serial Port on page 16.

The SPAN-IGM can supply power for the antenna Low Noise Amplifier (LNA) through the Antenna port center conductor. The SPAN-IGM provides +5 VDC +/- 5% at a maximum of 100 mA.

For best performance, use a high-quality coaxial cable. An appropriate coaxial cable is one that matches the impedances of the antenna and receiver (50 ohms), and has a line loss that does not exceed 10.0 dB. If the limit is exceeded, excessive signal degradation may occur and the receiver may not meet performance specifications.

NovAtel offers several coaxial cables to meet your GNSS antenna interconnection requirements, including 5, 15 and 30 m antenna cable with TNC connectors on both ends (NovAtel part numbers GPS-C006, GPS-C016 and GPS-C032).

If your application requires the use of cable longer than 30 m, refer to application note APN-003 RF Equipment Selection and Installation, available at www.novatel.com/support/knowledge-and-learning/published-papers-and-documents/application-notes/.

2.3.4Connect Power

The SPAN-IGM requires an input voltage of +10 to +30 VDC. The SPAN-IGM has an internal power module that:

•filters and regulates the supply voltage

•protects against over-voltage, over-current, and high-temperature conditions

•provides automatic reset circuit protection

The power input pins are located on the MAIN connector. If you are using a NovAtel interface cable (part number 01019014), the power leads are labelled BATT+ and BATT-. Be sure to connect the power with the correct polarity and ensure the power source is within specifications. If you are creating a custom interface cable, see Appendix A, Technical Specifications on page 52 for the MAIN connector pin out and power input requirements.

A SPAN-IGM can be connected to a FlexPak6 receiver to create an ALIGN system (see Figure 8, SPAN-IGM - Dual Antenna Installation on page 39).

When the SPAN-IGM is connected to the FlexPak6 using a SPAN-IGM ALIGN cable (NovAtel part number 01019089), the FlexPak6 provides power for the SPAN-IGM through the SPAN-IGM ALIGN cable.

There is always a drop in voltage between the power source and the power port due to cable loss. Improper selection of wire gauge can lead to an unacceptable voltage drop at the SPAN system. A paired wire run represents a feed and return line. Therefore, a 2 metre wire pair represents a total wire path of 4 metres. For a SPAN system operating from a 12 V system, a power cable longer than 2.1 m (7 ft.) should not use a wire diameter smaller than 24 AWG.

The power supply used to power the SPAN-IGM must be monotonic during power on to ensure internal logic blocks are initialized appropriately and proceed to valid operating states. If the power supply is not monotonic during power on, the accelerometer status in the IMU status may show a failure and the accelerometer measurements in the RAWIMUS log (see the SPAN on OEM6 Firmware Reference Manual (OM-20000144)) will be zero. Power cycling with a monotonic power up clears this error state.

SPAN-IGM User Manual Rev 2

19

Page 18 Page 20
Image 19
Page 18 Page 20
Contents OM-20000141 Rev September SPAN-IGMReturn Instructions Proprietary Notice WarrantyTable of Contents Frequently Asked Questions Replacement Parts Figures Tables Contact Information NovAtel Knowledge Base Before Contacting Customer SupportWeee Notice FCC NoticesIndustry Canada CE NoticeActions to Mitigate Lightning Hazards Lightning Protection Installation and Grounding ProcedureWhat is the hazard? Hazard ImpactUSA Primary and Secondary Lightning Protection Ref # DescriptionFundamentals of Gnss + INS IntroductionGnss antenna PC software System ComponentsScope SPAN-IGM Integrated Gnss + INS unitConventions SPAN-IGM Hardware Span InstallationConnector Type Connections Required EquipmentNovAtel Port Purpose SPAN-IGM Cables Use a USB cable to log raw data SPAN-IGM CablesTypical SPAN-IGM Set Up Serial Port Radio Hardware Set UpTypical SPAN-IGM Set Up USB Port Radio Mount the SPAN-IGM Mount the AntennaConnect the Antenna to the SPAN-IGM Connect PowerConnect a Computer to the SPAN-IGM Connect a Computer Using a Serial ConnectionSignal Description a Connect I/O Strobe SignalsConnect a Computer Using a USB Connection O Strobe Signals8 COM3 Serial Port Enable RS-422 serial connectionsEnable the COM3 Serial Port Disable the COM3 Serial PortOdometer Requirements Odometer connectionPin M12 Connector Function J2 Wire Bundle On Cwpt Sensor Software ConfigurationGnss Configuration Span IMU ConfigurationConfigure Span with Connect SPAN-IGM LEDs SPAN-IGM LEDsOff Flashing Slow 1Hz Flashing Fast 1Hz Communicating with the Span System Span OperationChapter Span Operation INS Window in NovAtel ConnectSpan Operation Chapter Real-Time OperationAscii System Start-Up and Alignment TechniquesManual Alignment Kinematic AlignmentDual Antenna Alignment Data Collection Navigation ModeInssolutiongood Solution ParametersVehicle to Span Frame Angular Offsets Calibration Routine  Logging Restriction Important NoticeSpan Wheel Sensor Messages Wheel Sensor Update LogicMeasurement Timing and Frequency Inertial Azimuth Set up a Wheel SensorAzimuth Sources on a Span System Course Over GroundLog Azimuth Source Format Data Collection for Post-ProcessingVariable Lever Arm SPAN-IGM Dual Antenna InstallationConfiguring Align with SPAN-IGM Alignment on a Stationary Vehicle Aided Static Alignment Alignment on a Moving Vessel Aided Transfer AlignmentAutomatic Alignment Mode Automatic Alignment default Span Align Attitude UpdatesUnaided Alignment Local-Level Frame ENU Reference Frames Within SpanSpan Body Frame Span Vehicle Frame Enclosure FrameFirmware Updates Firmware Updates and Model UpgradesNovAtel Firmware and Software Model Upgrades Authorization CodeTransferring Firmware Files Updating or Upgrading Using the WinLoad UtilityTypes of Firmware Files Open a File to Download Using the WinLoad UtilitySearching for Card Updating using SoftLoad CommandsSoftloadsrec S-RECORD Working with S-RecordsUpgrade Procedure Upgrading Using the Auth CommandXXXXXX,XXXXXX,XXXXXX,XXXXXX,XXXXXX,MODEL,EXPDATE SPAN-IGM-A1 Technical Specifications Technical SpecificationsSPAN-IGM-A1 Mechanical Drawings SPAN-IGM-A1 Environmental SpecificationsSPAN-IGM-S1 Data Rates SPAN-IGM-S1 Technical SpecificationsSPAN-IGM-S1 Physical Specifications SPAN-IGM-S1 Gnss PerformanceSPAN-IGM-S1 Mechanical Drawings SPAN-IGM-S1 Environmental SpecificationsAUX Port Pinout SPAN-IGM PortsMain Port Pinout Pin # Label DescriptionUser Port SPAN-IGM Interface CableSPAN-IGM Interface Cable Pin-Out Descriptions MIC PortSPAN-IGM Align Interface Cable Pin-Out Descriptions SPAN-IGM Align Interface CableVarf Dgnd SPAN-IGM Auxiliary Port Interface CableCOM3 Port Pin # LabelsAppendix B Frequently Asked QuestionsPart Description NovAtel Part Replacement PartsAccessories and Options Span SystemIndex Index OM-20000141 Rev September

OM-20000141 specifications

The Novatel OM-20000141 is a high-performance multi-GNSS (Global Navigation Satellite System) receiver designed for various applications including precision agriculture, autonomous vehicles, and surveying. This state-of-the-art device combines cutting-edge technologies to provide accurate and reliable positioning data, making it an indispensable tool for professionals in fields that rely on geolocation.

One of the standout features of the Novatel OM-20000141 is its multi-frequency support, allowing it to receive signals from GPS, GLONASS, Galileo, and BeiDou systems. This capability significantly enhances the accuracy and reliability of positioning information, particularly in challenging environments where signal interference can occur. By utilizing multiple frequencies, the OM-20000141 can mitigate errors caused by atmospheric disturbances and multi-path signals, resulting in improved precision.

In addition to its multi-GNSS capabilities, the receiver incorporates advanced RTK (Real-Time Kinematic) technology, enabling centimeter-level accuracy. This is particularly beneficial for applications that require pinpoint geolocation, such as precision agriculture, where farmers need to optimize crop yields and resource usage. The RTK technology allows users to achieve real-time positioning corrections, making it a vital tool for surveying and construction projects that demand high precision.

The Novatel OM-20000141 also features built-in connectivity options, including Bluetooth and USB interfaces, facilitating seamless integration with other devices and systems. This connectivity is crucial for enabling real-time data sharing and remote monitoring, enhancing the usability of the device in various operational environments.

Robustness is another significant characteristic of the OM-20000141. Designed to withstand harsh conditions, the receiver features a durable housing that protects it from dust, moisture, and extreme temperatures. This resilience ensures that the device operates effectively in all weather conditions, making it suitable for outdoor applications.

Furthermore, the receiver is equipped with intelligent positioning algorithms that optimize performance in urban canyons and dense foliage areas, where traditional GNSS receivers may struggle. By leveraging these algorithms, the OM-20000141 can maintain reliable positioning even in challenging environments.

Overall, the Novatel OM-20000141 stands out as a versatile and reliable GNSS receiver, merging advanced technologies to deliver high accuracy and reliability. Its exceptional features make it an invaluable asset for professionals in various industries, enhancing their ability to achieve precise geolocation and optimize their operations.
Top Page Image Contents