Marine GPS based devices are a boon to all seafarers. It is based on the Global Positioning System or GPS. It is a constellation of satellites which orbit the earth twice a day, transmitting exact time and position information. With GPS, you can spot your precise location and get back to your original destination. A marine GPS can be of a great help should you get lost in any large body of water – lakes, seas or oceans.
A marine GPS device’s use starts off the first step prior to going out to sea – voyage planning. One of the most vital advantages of using marine GPS is that it is a device commonly responsible for saving lives. In addition, marine GPS also reduces the chances of getting lost at sea.
Normally, marine GPS systems are used by the Coast Guard to keep track of ships as they move along the coastlines. This will give them an idea of the direction in which a vessel is heading. They may be able to communicate with the vessel and provide precise information regarding its current position and directions to take to get to its destination.
With marine GPS technology, planning routes for other ships have been made possible for the crew. In addition, this technology also helps in avoiding collisions that may cause fatality or other accidents that may cause damage to the ship.
Basically, there are many different kinds of marine GPS in the market. They range from voice-enabled computer systems to simple radar-oriented GPS systems. The more popular marine GPS systems will be the one that is voice-enabled. Somehow seafarers relate to this type of marine GPS systems since they find some comfort in listening to a ‘human’ voice; though it may be a computer generated one. As for the radar-oriented GPS systems, they only give off a beep as a form of signal. This makes the interaction with the marine GPS a less ‘personal’ one; although they are very effective in locating positions.
People usually perceive that they need lots of sea knowledge in order to operate a marine GPS. However this is not the case. Just like any other GPS system, all you need to do is to read the manual and understand the signals that are shown on the GPS device. Thereafter, you can program the marine GPS device according to the requirements of your journey on the high seas. Whether you use a marine GPS on land or at sea, they provide user friendly interfaces that makes them easy for everyone to operate.
GPS Fish Finders Is A Great Tool For The Fisherman – Hobbyist Or Professional
GPS fish finders are amazing devices that take away the hassle of finding your catch during your fishing expeditions. There is a great variety of GPS fish finders today. The Internet is a great place to start your search for information. Some sites will have general information regarding these innovative devices; others will have details regarding commercially available models. You can review their features and functions and what they will cost to buy to improve the chances of successful fishing. Here is a summary of some well-known models:
1) Hummingbird 383c GPS Fish Finder Combo
This GPS fish finder has a built-in nautical mile resolution UniMap of USA inland lakes, rivers and coastal areas. In addition, it includes many key features in its package such as an internal 16 channel WAAS GPS receiver with omni-directional antenna for higher performance. This model gives accurate water temperature readings and can be designed for both fresh and saltwater environments.
In addition it also can freeze frame immediately; pause display allowing more time to examine the details. Its compact design is perfect if there is insufficient space on your boat. Moreover, this GPS fish finder can be easily mounted on a mounting space on the boat. This model possesses the DualBeam PLUS sonar, which delivers wider coverage of the bottom. It also makes the job of finding fish much easier with the built in adjustable zoom levels for display.
2) Eagle FishElite 500c GPS Fish Finder
This model is another popular choice for a GPS fish finder. It has a high quality ultra bright and 256 color LCD screen. Furthermore it is a full size combo 200 kHz sonar and mapping GPS and WAAS with 256-color, sunlight-viewable 320Vx240H pixel display.
What is great about this mode is that it offers high definition to help you identify what you are looking for. In fact, the GPS fish finder can reveal fish hidden in underwater color. It also comes with an optional sensor and adjustable ping speed with automatic HyperScroll to show fish targets at higher boat speeds.
This GPS fish finder system also comes with a built-in temperature sensor in the transducer, zoom in bottom tracking and easy zoom in and out control as well as on and off sonar alarms. This model also comes with pre-installed maps of the continental U.S and Hawaii.
Basically, this particular GPS fish finder is good, durable and easy to use. Its internal memory helps to store GPS data and sonar settings. Therefore, with this tool, you can be assured that you will bring in loads of fish home.
By: Cindy Heller
Posts Tagged ‘Current Position’
Tips On Using Marine GPS Based Devices
February 11th, 2010What Can A GPS Handheld Unit Do For The Hiker?
January 12th, 2010
Handheld GPS units are a hikers best friend. Any hiker knows that being able to find your way around, especially in wilderness areas, is important. Hikers also know two of the deterrents to hiking in the wilderness are how to find the head trail and then how not to get lost during the hike. A handheld GPS unit can give people the freedom to explore the experience hiking in the wilderness areas that they have not attempted before.
A typical handheld GPS unit is powered by standard batteries and is 2 to 3 inches wide and 4 to 6 inches long. These handheld GPS units have a small screen which shows an icon representing your current location and pre-plotted locations. Various models also have maps showing roads and streams, topography, etc.
Handheld GPS units which can be used for hiking in the wilderness, use satellites orbiting over 12,000 miles above the earth to determine the position of the handheld GPS unit on the ground. It does this by using travel times to the handheld GPS unit’s signals being emitted from some of the 24 Navstar satellites. Consumer grade handheld GPS units need to receive signals from at least three of these satellites to calculate your “XY” or map coordinated position. At least four of these satellites are needed to also calculate your altitude.
There are several physical elements which may prevent a handheld GPS unit from receiving a satellittes signals. Mountains, canyon walls, high metropolitan buildings, and dense forest growth can limit the number of low in the sky satellites that are visible and therefore useable by the handheld GPS unit.
Once a handheld GPS unit has a location fixed in it, here’s what it may do for you while you are hiking in the wilderness.
1. Waypoints: A waypoint is a single point location. It can be saved in the handheld GPS unit’s memory. As you are hiking in the wilderness you can see your current position in relation to the point you want to go to. Waypoints may be created and saved in the handheld GPS unit’s memory before leaving for your trip or while you are in the field exploring. Sometimes a series of waypoints are sequentially linked to form a route.
2. Routes: A route is a series of locations that are linked in sequence to describe a path along which you intend to hike in the wilderness. The maximum number of positions that can go into a route varies depending on the type and model handheld GPS unit you have.
3. Tracks: A track is essentially a route that is made up of many linked sequential locations which a handheld GPS unit automatically creates and saves as you hike in the wilderness. This is analogous with leaving markers along a trail, so you can retrace your path that your came in on while hiking in the wilderness. This helps the hiker avoid getting lost while enjoying and exploring in the wilderness.
Waypoints, routes, and tracks are the three principal categories of locations that are fixed by a hiker in a handheld GPS unit. An understanding of these three basic categories gives the hiker insight into how a handheld GPS unit can help one navigate and explore safely while hiking in the wilderness. It can be used to preplan trips and to guide the hiker along their from their start to the destination and back again. A handheld GPS unit is ideal for the hiker to track and show them where they are going, where they have been and to reverse the course and return the hiker safely to their starting point.
By: Beth Appel
