Most people think it's because active cell phones could interfere with the plane's navigation equipment. But that's not the real reason why your phone has to be in "Airplane Mode." Following is a ...

a manufacturer of satellite communications and navigation equipment, launched a new compact satellite communications terminal which complies fully with the new GMDSS requirements for vessels at sea.

A new navigation system using cell phone signals could serve as an emergency alternative to the global position system (GPS) that pilots use in the case of flight equipment failure or malfunction.

Roger Revelle is equipped with an extensive suite of navigation and communications instruments and devices. This equipment allows precise navigation and control of the ship and worldwide ...