Marine Electronics

Autopilot

The first report of self-regulation in the 1920 years has set up to control model yachts but it was not until 1948 that the principle has been applied to full scale yachts. Standing at the top for long periods, monitoring instruments and keeping a good look out can be very tiring. An autopilot relieves the helmsman, the right course it could be free to control keep a proper lookout. The autopilot can be set to steer a compass course or a course by winds. A fluxgate compass or electronic weather vane feeds information to a microprocessor which then makes the necessary rudder movements of the ship on its return required courses. Mechanical power is applied the rudder by either electric linear actuators activators, hydraulic pumps or rotary discs. GPS / plotter can be used to input navigation instructions to the autopilot.

charger will fully charge the batteries and extend their working lives.

consists of an antenna, mounted high on the boat, using GPS signals and a display either in the navigation station or track the ship’s rudder. The boat position is sent from the antenna to the display unit, further demonstrating graphically on the map. The table itself looks like the paper equivalent and show depth, land mass, navigational aids such as buoys and hazards in the form of wrecks and obstructions. The user can add waypoints to a map and zoom in and zoom out of the screen. card readers are connected to an autopilot drive and / or data to a GPS fish finder or radar. You can also use a laptop enabling complex passage planning to be done to remove from the boot interface, then entered the chart plotter after arriving at the boat.

magnetic compass transfer function like traditional compasses using magnets to the orientation of vessels in the earth’s magnetic field they then send the boats towards an electronic display to be determined. They facilitate steering than conventional compasses because they are more stable position and can be seen not suffer from “lag” when one occurs again. You can plotter, autopilot and radar interface. Fluxgate compass of two pieces of material slightly magnetic coils around it saturated in opposite directions. AC current is passed through the coils and the material in one direction, then saturated. Earth’s magnetic field affects slightly when the saturation occurs earlier in a coil, then the other. The difference is then calculated by an output proportional to the magnetic field of the earth. They are 0.1 degrees. Their output can be shown digitally to the helmsman or they can be on autopilot, plotter and radar interface.

sonar work on the same principle as sonar. A transducer emits a narrow beam of high-frequency sound. This is measured through solid objects, and the delay between transmission and reception of the echo is reflected. The speed of sound in water is known and if the range or distance can be calculated on the ocean floor. Which is then displayed in meters. Forward-Looking Sonar (FLS), you can see the underwater hazards before they are actually on it. A typical range is 150 feet FSL.

beacon (EPIRB) is a device designed to float free from a ship in distress. It then sends a radio signal from the search and rescue satellite aided system (SARSAT) satellites can be detected. To send a message to a ground station, which in turn can launch a search and rescue operations.

use the same technology as sonar. A narrow beam of high frequency sound is transmitted by a transducer, which is in solid objects such as sea floor. The development of this technology pollsters offer displays, where the fish are and they can point to differentiate between bait and larger species

Global Positioning System (GPS Receiver) – This system was originally developed for military use and is owned and operated by the U.S. Department of Defense. 24 satellites in a “cage” in the world are arranged so that they are at any point can be arranged on the surface of the earth line of sight can be adjusted from 4 satellites at a minimum. An update is accurate measurement of the distance between a satellite and a GPS receiver to receive a specific time. Since the exact position of the satellite is known, these routes heading lines, which are converted by a microprocessor in the GPS receiver to read outs of latitude and longitude coordinates.

protocol is used to measure the speed of the boats in the water. A paddle wheel or propeller is mounted below the water line by running water, the electrical impulses generated turned into a microprocessor that displays speed and distance will be sent.

– On most boats today you still will find the interior of one kind or another. For entertainment on board, there are televisions and stereo systems. With the popularity of card readers is the PC or laptop. Maintenance often requires the use of power tools. Cruise could be a washing machine, dishwasher or microwave. Scheduled for May 12, 24 or 48V supply and convert it into a stable 110 V or 220 V AC.

Navtex can perhaps best be described as a telex service updated techniques of navigation and weather information in the specified areas. A board world on the receiver to listen to 518kHz, Navtex frequency, if left turned on either print or display the latest massages sent from a local station. The service is available up to 400 miles from the coast.

radar you can see what are otherwise invisible. They offer more benefits in the night and in fog or rain and are of particular value when close to shore or in heavy traffic. They consist of an antenna and a screen. The antenna sends a stream of RF energy reflected by hard objects will. When this energy is back in a signal that the user sees converted. The antenna rotates every few seconds, the display continuously calculates the orientation of the antenna and thus calculate an exact effect of the target. The time is measured for energy is reflected and thus the distance of the target is also displayed.

satellite phones, consisting of an antenna, a modem and a regular phone. They are characterized by a battery powered by Iridium. Their range is anywhere covered by the Inmarsat mini-M satellite. Voice, fax, e-mail and data can be transmitted.

satellite requires an antenna and a television. The reception is in a “footprint” that appears on EIRP (effective isotropic radiated power) of a satellite transmission basis. The ASTRA satellite EUTELSAT with two cover Europe. Arabsat NILESAT and the two covers Africa and the Middle East. Good coverage is also available in North America, Central and South America.

SSB has a range of several thousand miles. To obtain a license or are planning FFC equivalent in each country must make it work. Power consumption is a consideration. Up to 100 watts may be necessary for the transfer. SSB radio requires several devices. An SSB transceiver is an antenna, it must be 8 feet long and in practice most boats with a backstay or shroud for the installation of the necessary insulators. An antenna pattern according to the transceiver. If you want to send an e-mail, you must also radio and modem and computer.

FM Power required is minimal, all games have the possibility of transmitting on either 1 Watt or 25 Watts and less energy used, if possible. Unlike phones that you talk and listen at the same time most VHF sets, you have to press a transmit button before speaking to allow. This is called a simplex. Duplex units available, but are much more expensive. VHF radio waves travel in straight lines so that the antenna is mounted as high as possible, preferably at the top of the mast.

Plotter