Trimble to Resume Shipping GPS Units

Sunnyvale-based Trimble Navigation Ltd. said it will resume shipments of global positioning system units to American Mobile Satellite Corp., ending a dispute that included litigation. Trimble, which makes satellite-based navigation and communication systems, said it will begin shipping its Galaxy units in March. The Galaxy units are used to precisely determine location and facilitate data transmissions. Reston, Va.-based American Mobile will incorporate the units into its Mobile Messaging Service, which provides data communications. Trimble’s stock rose 50 cents to close at $13.375 on Nasdaq; American Mobile’s rose 23 cents to $12.24, also on Nasdaq.