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Navigation & Communication -
Navigation & Communication
Navigation & Communication
Navigational instruments refer to the instruments used by nautical navigators as tools of their trade. The purpose of navigation is to ascertain the present position and to determine the speed, direction etc. to arrive at the port or point of destination. Nautical equipment mainly includes-
VHF-Radio System
Marine VHF radio is a worldwide system of two-way radio transceivers on ships and watercraft used for bidirectional voice communication from ship-to-ship, ship-to-shore, and in certain circumstances, ship-to-aircraft. It uses FM channels in the very high frequency (VHF) radio band in the frequency range between 156 and 174 MHz. In the official language of the International Telecommunication Union, the band is called the VHF maritime mobile band.
Gyrocompass with Auto Pilot
A Gyro compass is a form of gyroscope, used widely on ships employing an electrically powered, fast-spinning gyroscope wheel and frictional forces among other factors utilizing the basic physical laws, influences of gravity and the Earth's rotation to find the true north.
GPS Navigator
GPS offers endless possibilities for recreational and angling boaters. Modern GPS technology has the ability to network with radar, sonar, trolling motor, and autopilot systems. Can be with or without chart plotter.
Marine Radar
Marine radars are X band or S band radars on ships, used to detect other ships and land obstacles, to provide bearing and distance for collision avoidance and navigation at sea. This provides a combined view of surroundings to maneuver the ship.
Navigational Echo Sounder
Echo sounder is an instrumentation system for indirectly determining ocean floor depth. Echo sounding is based on the principle that water is an excellent medium for the transmission of sound waves and that a sound pulse will bounce off a reflecting layer, returning to its source as an echo.
Sonar
Sonar is a technique that uses sound propagation to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.
Sub-Bottom Propeller
Sub-bottom Profilers are a special kind of single beam echosounders, that operate with very low frequencies, that allow to penetrate and scan the upper layers of the subseafloor.
HF SSB
The Marine MF/HF-SSB radio is a combined transmitter and receiver much like VHF. Unlike VHF which is typically a line of sight radio, MF/HF radios are able to refract their signals within the atmosphere providing increased range.
Control & Monitoring Equipment
Marine automation systems provide a ship with one central way to control and monitor its equipment and operations. This system requires data acquisition from multiple pieces of equipment on a ship and the integration of that data into the automation system. Doing this effectively can save costs, energy and materials.
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