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Floating-card compass with prismatic sight (bearing 220° through eyepiece). The marine hand compass, or hand bearing compass|hand-bearing compass as it is termed in nautical use, has been used by small-boat or inshore sailors since at least the 1920s to keep a running course or to record precise bearings to landmarks on shore in order to determine position via the resection technique.
Certain Magellan vehicle navigation systems are also Bluetooth-compatible for integration with mobile phones, and traffic upgradeable for real-time traffic information. The Maestro 4050 is the first portable vehicle navigation device to offer drivers the convenience of voice command capabilities.
Silva Sweden AB is an outdoors products company that sells handheld compasses and other navigational equipment including GPS tools, mapping software, aircraft altimeters, and marine navigation tools. Silva's founders - Gunnar Tillander, Alvar Kjellström, Arvid Kjellström, and Björn Kjellström - invented the hugely popular orienteering ...
However, in many cases, it is also that which makes the program free (and sometimes open source [1]), avoid the need of an Internet connection, [2] [3] [4] and make it very lightweight (allowing use on small portable devices, including smartphones). Very basic programs like this may not be suitable for road navigation in cars, but serve their ...
The simplest and most common type of hand compass has a horizontal compass rose and an observation device: a pinnule, alidade or viewfinder that allows the user to observe the target and then by "changing view", read the angle formed by the target's direction and the one marked by the compass with respect to the magnetic north.
The Fishbrain app is downloadable from the App Store and Google Play and has been made available for iPhone, iPad, and Android devices. [4] In 2019, Fishbrain added a marketplace [5] where anglers can buy fishing gear. This marketplace is offered as an online service and an in-app service. It features gear advice based on catch data.
Fishfinder instruments are used both by recreational and commercial fishermen, as well as by marine biologists. Modern electronics allow a high degree of integration between the fishfinder system, marine radar, compass and GPS navigation systems.
Electronic compass can refer to: magnetometer (as in some hand-held GPS units) fibre optic gyrocompass (as in a ship's navigation system)
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