Marine and Aviation

Aviator's Guide to GPS - Get a feel for using digital readout and moving-map GPS receivers with this book's unique, fully illustrated examples that is devoted solely to GPS navigation.

Fugro SeaSTAR - Differential GPS for oceangoing vessels.

Handheld GPS in the Cockpit - Information on using hand held GPS units in the cockpit addressing issues such as navigation, aviation vs. non-aviation units, where to get waypoints and other relevant topics.

Pacific Coast Avionics. - Authorized avionics distributor of GPS, autopilot, and other aircraft instruments.

Porcine Associates - Couplers that allow connection of hand-held or panel-mounted GPS receiver to autopilot. Follow a GPS course or hold a heading.