(No wonder it's been so quickly replaced by the satellite-dependent Global Positioning System ... behind celestial navigation are fairly straightforward. Here are a few examples that show how ...

CR's experts share the pros and cons of built-in navigation systems, stand-alone GPS devices, and navigation apps By Benjamin ...

Long before ships relied on GPS to determine their location – and even before radio navigation systems such as LORAN, vessels relied on a still impressively sophisticated means of determining ...

For example we actively support the development of Distance Measuring Equipment (DME) industry standards, as well as the use of the L-Band Digital Aeronautical Communication System (LDACS) as a ...