Navigational equipment

The backstaff is a navigational instrument that was used to measure the altitude of a celestial body, in particular the Sun or Moon. When observing the Sun, users kept the Sun to their back (hence the name) and observed the shadow cast by the upper vane on a horizon vane. It was invented by the English navigator John Davis, who described it in his book ''Seaman's Secrets'' in 1594.

device that shows a ship rudder's current position

watch with integrated GPS receiver

u-blox is a Swiss company that creates wireless semiconductors and modules for consumer, automotive and industrial markets. They operate as a fabless IC and design house. The company originated as a spin-off from ETH Zurich and was founded in 1997.

used to measure the angle between magnetic dip and the horizon

mariner's handbook of written sailing directions

Navigational tool

compass that senses direction electronically

Navigational equipment

discipline of following a route through unfamiliar terrain on foot or by vehicle

A chartplotter is a device used in marine navigation that integrates GPS data with an electronic navigational chart (ENC). right|thumb|A Raymarine chartplotter

radar system component that associates consecutive radar observations of the same target into tracks

flight instrument

spy Construct used for undetected Zeppeline-observations

system for global identification and tracking of ships

nautical instrument

Swedish navigation tool manufacturer