Michael L. Whitehead (MW), chief scientist at Hemisphere GPS, leads a team of engineers designing applications in machine control, guidance, marine, and survey. Managing Editor Tracy Cozzens (TC) spoke with him on June 4.

Shipyard Giants High-Precision Crane Guidance Sep 3, 2002 By: Richard Langley, Seungnam Kim, Donghyun Kim

Giant cranes moving in busy container yards require precise positioning to operate efficiently and safely. Ultra high-precision GPS RTK software working with dual-frequency GPS receivers and wireless data modems accomplishes this.