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v5.20 - Classic DocuShare Home - Trimble

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A Pro XRS System<br />

A.1 Introduction<br />

The GPS Pathfinder Pro XRS system is an advanced<br />

high-performance geographic data-acquisition tool that uses<br />

differential GPS to provide submeter (50 cm RMS) positional<br />

accuracy on a second-by-second basis. The Pro XRS GPS receiver is<br />

available with 12 channels. The Pro XRS receiver uses <strong>Trimble</strong>’s The<br />

Choice technology, offering users unsurpassed flexibility in choosing<br />

a source for real-time corrections. This breakthrough technology<br />

combines a GPS receiver, an MSK beacon differential receiver, and a<br />

satellite differential receiver all in a single housing. The beacon<br />

component is a fully-automatic dual channel MSK radiobeacon<br />

receiver for receiving DGPS (Differential GPS) broadcasts<br />

conforming to the IALA (International Association of Lighthouse<br />

Authorities) standard.<br />

A.2 Turning the Receiver On<br />

When the receiver and TSC1 datalogger are connected as shown in the<br />

cabling diagram later in this section, you do not need to explicitly turn<br />

on the GPS Pathfinder Pro XRS receiver. When the TSC1 datalogger<br />

is turned on, the Asset Surveyor software immediately turns on the<br />

Pro XRS receiver and starts communicating with it.<br />

Note – The TSC1 datalogger draws power from the receiver’s battery<br />

when the receiver is turned on.<br />

A.3 Turning the Receiver Off<br />

When you turn off the TSC1 datalogger or explicitly disconnect the<br />

GPS receiver, the Pro XRS receiver is automatically turned off. It<br />

ceases drawing current from the system battery when turned off.<br />

232 TSC1 Asset Surveyor Operation Manual

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