| In the past, mariners use to navigate by the stars. | | | | Types of Marine GPS Devices |
| Today, they navigate by satellites through the Global | | | | If you are looking to purchase a Marine GPS then it is |
| Positioning System (GPS). This brilliant piece of | | | | important to do your home and to compare different |
| technology can locate a person with a GPS receiver | | | | models to discover which unit will best meet your |
| anywhere on Earth and report back their exact | | | | needs. Some GPS units are handheld while others are |
| location with astonishing accuracy. It can also tell a | | | | much larger portable ones with more features. The |
| sailor out on the ocean or lake how to get to any | | | | larger devices typically have 7 inch or more screen |
| chosen destination quickly and easily. | | | | that ensure that the picture is large enough to |
| Hundreds of different types of marine GPS units are | | | | distinguish various shapes and markings. |
| for sale. As you can imagine, all are waterproof and | | | | A recently launch marine GPS is the Navigational |
| have various features that help you navigate out on | | | | Adventure. This device has a massive 16MB storage |
| the water. The units have pre-programmable | | | | space and that has an in built database for maps that |
| databases for all the rivers and lakes as well as | | | | include city locations, waterways, airports and |
| nautical markers for lights, buoys, sound signals and | | | | highways of North America, and fixed nautical to |
| day beacons among other things. | | | | indicate things like buoys and lighthouses. There is |
| Not only will a Marine GPS unit aid a fisherman or | | | | also the displaying of bearings and knots. This one |
| boatman to keep his bearing, it can also help them | | | | has WAAS technology. |
| catch more fish. Using the GPS navigation maps the | | | | Mariner 260 is another marine GPS. It has a rugged |
| device can indicate what the currents are like and | | | | outer shell that is waterproof and has a 155MB |
| where the best places to find fish. It can even locate | | | | internal memory. There are over 1000 waypoints |
| caves and contours in the waterways. | | | | included in the device and graphic symbols. The unit |
| The smaller marine GPS units are typically used for | | | | can save a maximum of 20 logs which is a Hansel |
| recreational use and are usually portable as well. The | | | | and Gretel feature that enables you to retrace |
| gadgets contain bearings for longitudes and latitudes | | | | where you have been. It has an alarm, clock and a |
| that assist one to establish sunset and sunrise. You | | | | trip computer which offers an odometer. |
| can also save the routes and tracking points. | | | | |