Mobile GPS devices are becoming more and more popular each day, for they allow great portability. Most consumer GPS devices can be easily fit into the palm and are not that heavy as well. It can also be clip to a pet’s collar or fit into a cell phone. The basic concept behind GPS unit is quite simple. It includes a radio emitter that works with a clock, and together they work with Satellite that are located in the space. And now with the booming of technology, we have GPS device installed in many laptops computers, cars and even at seat back television screen of airplanes.
While the GPS technology does not really need a lot of space, the software that adds the functionalities expected by the consumer, actually does. The software once created, gets improved by getting smaller. The fact that not all GPS features are required by the customers, allows for smaller GPS devices.
How does a GPS device work? As already said, the GPS device requires a radio emitter and a clock to work. The emitter sends the time of the clock to the satellite overhead. The satellite then calculates the amount of time it took for the radio signal to reach them and then figures the distance from that. Three or four satellites compare their location and the time involved. They then show the location within about six inches depending on the accuracy of the unit’s clock.
Portable GPS device can be of many use. Besides plotting navigation or tracking objects and living things, it can use the data as information in applications.
Many mobile devices are GPS enabled in the present times. One of the most talked about, is the GPS navigation system of Nokia N95 and the Nokia 6110 navigator. The GPS of these devices are very user-friendly, and designed to meet the requirements of the modern users.
By: Alice Erin
Posts Tagged ‘Airplanes’
Things You Should Consider When Selecting a GPS Device
January 15th, 2010
Most people become confused when trying to decide which GPS unit will fit their need and price range. One of the first things to decide is which brand to purchase? I recommend Garmin devices, because they are not only the most popular but generally are the most technologically advanced units on the market. For most applications Garmin offers the broadest range of available units and mapping available. Of course there can always be an exception with the many applications for GPS.
You should decide which application you will be using your GPS device for. If you will be using the GPS unit for finding directions in your car you should purchase a different unit than you would for Geocaching. If you are interested in a GPS unit primarily for boating, that will be a different GPS also.
Most GPS units are flexible in use but like airplanes, each model is more adapted to specific usage. It will be difficult, if not impossible to find a GPS unit that fits all of the different uses GPS is capable of.
Garmin manufactures and sells GPS units for airplanes, automotive use, motorcycles, boats, bicycles, runners, fishing, hunting, and the list goes on. Some of these units are very flexible and some are quite usage specific.
Garmin manufactures handheld GPS units that are very flexible in usage. Handheld units are great for carrying with you on outdoor activities. You can purchase handheld GPS units that have worldwide cities mapping included with other features. Some units come with preloaded mapping of USA inland lakes. Units are available with marine mapping preloaded and the list goes on.
Most Garmin handheld GPS units allow you to share data with other Garmin users wirelessly. Most Garmin units have the Tracback feature. Tracback shows with a line, your exact route and you can follow it back to where you began. Trackback is exclusive Garmin. Some of the Garmin units float in water and many are waterproof.
All of Garmin’s latest handheld GPS units can be connected to your PC to upload or download data. Most Garmin units are WAAS enabled giving you greater accuracy in the data you receive from GPS satellites.
Garmin manufactures handheld GPS units that are Geocaching friendly, allowing you to download and upload to and from the internet, or other users, GPX files that give the coordinates of the secret stash.
When purchasing a GPS unit you should consider all the elements I have given before deciding which GPS unit to purchase. Of course in the end you may purchase more than one unit for you different activities.
By: LaZinnia Manley
