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The OmniTRACS® two-way mobile satellite communications and position reporting system is described. This system provides message communications between moving vehicles and their operations centers. The mobile unit directly communicates with a central hub facility which provides system control, message processing and archival, and point-to-point communications with the operations centers. QASPR™, a dual satellite positioning system giving accuracies in the United States to about 1/4 mile, is described. Experiences and benefits to the trucking industry are also highlighted.