Chapter 2

SPAN Installation

If the SPAN-IGM is installed in a vehicle, NovAtel recommends a back-up battery be placed between the receiver and its voltage supply to act as a power buffer. When a vehicle engine is started, power can dip to 9.6 VDC or cut-out to ancillary equipment causing the receiver and IMU to lose lock and calibration settings.

Figure 6: Battery Isolator Installation

from Vehicle Alternator

to Vehicle Electrical System

Battery Isolator

 

Auxiliary

Vehicle Main

Battery

Battery

 

2.3.5Connect a Computer to the SPAN-IGM

You can connect a computer to the SPAN-IGM using a serial connection or a USB connection.

2.3.5.1Connect a Computer Using a Serial Connection

Connect the computer to the COM2 port on the SPAN-IGM. The COM2 serial port is available on the MAIN connector. See Figure 3, Typical SPAN-IGM Set Up – Serial Port on page 16.

If you are using a NovAtel interface cable (part number 01019014):

1.Connect the interface cable to the MAIN connector on the SPAN-IGM.

2.Connect the DB9 connector labelled User Port to the serial port on the computer.

If you are creating a custom interface cable, refer to Appendix A, Technical Specifications on page 52 for the MAIN connector pin out.

An additional serial port, COM3, is optionally available on the AUX connector. This port is disabled by default. For information about enabling COM3, see COM3 Serial Port on page 22.

By default, COM2 operates as an RS-232 serial port. To change COM2 to operate as an RS-422 serial port, see Enable RS-422 serial connections on page 22.

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SPAN-IGM User Manual Rev 2

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Novatel OM-20000141 user manual Connect a Computer to the SPAN-IGM, Connect a Computer Using a Serial Connection

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.