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Electronics for Marine Navigation Author: guest Mar 05

Navigating on the open water away from land has always been challenging and very exciting. Boating can be a very pleasant experience provided your vessel features the required tools to ensure your safety. Good quality sea-navigation electronic equipment on board ensures easier and safer navigation.

 

It is recommended to make sure that, the boat is equipped with certain marine electronics. The minimum requirement for safety is to at least have a VHF Marine Radio and a compass before leaving the shore. Other desirable electronics include a GPS plotter, fish finder or depth sounder,radar, and auto pilot. Other more sophisticated but nice to have items include an Automatic Identification System and a networked navigation system

 

Marine navigation electronics equipment operation and uses are discussed below:

 

Auto Pilot: It is a highly recommended tool for mariners set to go on a long voyage. Auto Pilot helps to steer the boat automatically and thus, relieves the person at the helm from fatigue. Auto Pilot is of great help for those that troll while fishing controlling the vessel way automatically, relieving the captain to join and enjoy the fishing. This tool is of great use, as it helps to save fuel by keeping the boat on a steady heading.

 

Fish finder: Those who fish for pleasure or hire enjoy the help provided by a good fish finder. The fish finder operates using SONAR. In principle, the sonar works by sending a signal down trough the water column until it strikes and object with ample mass to return a signal to the devise, thus rendering an image on the screen. Thereby, showing the fish depth in relation to bottom structure. If a fish finder is not desired or needed then a depth sounder with a digital readout is ample and less expensive.

 

Automatic Identification System: It is considered an important electronic tool for marine navigation. It provides other boats with your vital information as well as their information to you such as the exact position of the boat, longitude and latitude, Time stamp, Rate of turn, Course over ground etc. While the boat is under way, the AIS presents the relevant information every 2 to 10 seconds, whereas when the boat is anchored, the information is availabe every 3 minutes. Apart from providing the above information, it also presents the information about other boats : their dimensions, position, and type of the veselboat. It is the ultimate electronic tool for collision avoidance at sea.

 

EPIRB: The Emergency Position Indicating Radio Beacon (EPIRB) also known as distress radio beacon is a transmitter, which helps rescue services to locate boats in distress. The transmissions are repeatedly transmitted from satellites around the world to the various rescue services. Watercraft operators wishing to have an EPIRB must now use a digital 406MHz unit. The International Copas-Sarsat Satellite System stopped monitoring for all but 406MHz signals for distress alert and location data for rescue operation throughout the world..

 

GPS Plotter: The GPS system now takes over the duty of the old Loran navigation system. GPS signals are broadcast from satellites all over the world that are maintained by the US government. The GPS data can be viewed in digital or map format. The preferred method is on a plotter that is loaded with digital maps of the area you are boating in. Most new VHF radios now have the capability to broadcast your location with a distress signal if connected to a GPS

 

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Northstar Marine Electronics Author: guest Feb 21

Northstar Marine Electronics

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Finally , you have that vessel that you have dreamed about for so many years . But before you take it out for a great day on the water , you need to equip it with electronic accessories that will make your boating experience safer and more fun . Northstar Marine Electronics knows exactly what you need to get the maximum enjoyment from your boat.

First of all , a VHF radio is a safety feature no boat should be without . If you or your boat is in distress, a VHF radio can make the difference between finding help right away and being left to your own devices. The NS100 VHF radio is available in single/dual station configurations . They come with dedicated distress call button that sends your MMSID and location until an acknowledgment signal is received. It accesses all marine VHF channel banks, including weather ones. The Northstar Explorer 721 and 725 have a built-in barometric pressure sensor that gives weather and fish activity predictions. The “Happy Fish” icon on the LCD screen helps you determine the likelihood of finding fish. The 721 and 725 can each be outfitted with wireless handheld units, and the 725 has a “Track Your Buddy” feature for locating up to three boating friends and placing their locations on  your chart display.

Northstar Marine Electronics has a range of navigation tools, including the Chartplotter 8000i, a multipurpose instrument with a 12 inch touchscreen display. If you’re going to buy one piece of equipment other than a VHF radio, then you might want to consider the 8000i. It features the following goodies: chartplotter, depth sounder, radar, video monitor, network camera monitor, DVD player, CD player, music jukebox, fuel and engine management system, and instrument repeater.

If you’re just looking for a chartplotter / sonar combo , then you should opt for the Explorer series, models 660, 657, and 650. Each model has a built in 32 MB background maps with intricate cartographic detail feature. It gives you the option of using C-MAP NT MAX chart technology provided by cartography leader C-MAP.

The Explorer 538 is a stand alone chartplotter with a simple menu system and daylight viewable display . It comes with standard 16 megabyte background map and has a slot for the C-MAP NT MAX cartridge. The 3.8 inch screen is “transflective” with high contrast so you can read it in daylight easily. This chartplotter is a good companion electronics component with the Explorer 438 fish finder. The 438 has a 640 x 480 screen that gives you great detail. It has digital sounder technology to give you the highest quality sonar images . Advanced screens include A-scope, split screen variable zoom, and different color palettes. With 256 colors, you can see the nature of the floor structure and detail that will help you locate fish habitats.

Marine elecronics selection doesn’t have to be frustrating. Northstar has the marine electronics equipment that will help you enjoy your craft safely and comfortably while using equipment that’s at the leading edge of technology.

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Marine Electronics by Furuno Author: guest Jan 25

Once you had acquired the boat you have always dreamed about , the next exciting thing to do is to outfit it with electronics that will help you in you boating safely, finding the fish, and navigating to where you want to go. Furuno Marine Electronics is my personal favorite marine electronics outfitter. Of course, the first electronic system you should outfit your boat with should be a safety system. Beyond the mandatory safety equipment, there are many other electronic devfices that can help you greatly if you find yourself lost or in distress of some kind.

A VHF marine radio is a top pick for boating safety. It is equipped with Digital Selective Calling (DSC) and will allow you to communicate with the Coast Guard or another boater. You can choose a fixed VHF radio or a hand-held transmitter. You can get VHF marine radios that are simple and compact to those that are commercial grade and compliant with Global Maritime Distress and Safety System (GMDSS) compliant. Furuno Marine Electronics makes these in several price ranges, and they also make GMDSS integrated satellite and terrestrial radio communication systems for boats.

A Global Positioning System (GPS) is a great thing to have. The DSC capability on your VHF radio won’t send your position to the Coast Guard unless you have GPS coordinates. Plus, GPS devices are amazingly useful, as you know if you have one on your car or cell phone. Furuno has GPS receivers with Wide Area Augmentation System (WAAS) capability, that makes your coordinates as accurate as possible. Furuno Marine Electronics also makes GPS chart plotters with up to the minute technology.

If you’re a bass fisherman or a professional, a Furuno fish finder is one of the best you can get. { They come in various sizes , including fish finders that are integrated with GPS chart plotters and those that connect up to your NavNet display or Ethernet hub}. Furuno Marine Electronics fish finders have digital filters and gain optimization to give you defined pictures of the conditions underwater, and some models can show fish near the seabed.

An electronic satellite weather system from Furuno will give you extra peace of mind with up to date information and forecasting. Their systems allow you to overlay reports, sea surface temperatures, and radar, resulting in a comprehensive marine weather system.

Started in 1938 in Nagasaki, Japan, Furuno Marine Electronics now has subsidiaries in Europe and the Americas as well as in the Far East. Their reputation is that of supplying the best quality marine electronics available. In the past five years , they’ve developed the first dual frequency search light sonar, opened headquaters in various countries , and set up a training center in Denmark in order to train commercial crews in the use of the INS. They have also developed automatic identification systems (AIS) receivers for fishing boats and recreational vessels. Those are excellent , reliable friends to have when you’re out on the water enjoying your boat.

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