Handheld GPS

1. Handheld GPS
By Jason Gluckman

The Global Positioning System or GPS is a navigational system, which uses satellites and computers to determine position of a receiver on Earth. The G PS is the only satellite navigation system that is fully functional. It is a constellation of twenty-four satellites. These satellites radio signals to electronic GPS receivers. By doing so the satellites are able to find the correct location of the receivers. They get the exact longitude, latitude and altitude of the receiver. It works day and night and in all weather conditions. GPS was declared fully functional in 1985. GPS is used for navigating on land, sea and air. It is also used for research and information on topography.

Availability of better and cheaper GPS devices has led to extensive usage of GPS systems. A handheld GPS can be any small handheld device like a wristwatch or radio. GPS system helps by showing the way or the map of the area where a person is. It prevents the individual form getting lost in an unknown area. It gives the current location of the holder and also information on the surrounding area. The GPS user can get information about the area a person is in. For example, the place where he is currently at, the nearest hotel, petrol pump, hospital and so on. GPS watches can be fitted with a GPS receiver, which relays a signal to a central command center equipped with GPS software systems. The system can track the position of the wearer and transmit the information. A variety of such GPS phones and wristbands are now sold in the market. They are useful to mountain climbers and hikers.

GPS is one of the most useful technologies that has been developed in recent years. The accuracy of the GPS signal has improved steadily for the past 15 years and is expected to improve further. This can be achieved by using techniques such as differential GPS. GPS also gives an extremely precise time reference. Improvement in GPS systems will lead to further improvement in the field of navigation and others related to travel and surveilance.

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2.GPS Handheld Mapping Devices - What Is The Difference?
By Dean Shainin

So many companies that offered GPS handheld mapping devices are operated today. Some of them are just among those many outstanding GPS handheld mapping providers such as Magellan, Garmin, Lowrance, and much more.

For those who are interested to acquire some knowledge about some of those GPS handheld mapping devices that are widely used by many nowadays, try to look at some of the information below about a couple samples of GPS handheld mapping devices. Note that these are just among the many GPS handheld mapping devices that are out in the market today.

One of the outstanding GPS handheld mapping manufacturers and providers is the Magellan GPS Company. Magellan GPS devised one of their excellent GPS handheld mapping receivers and that is the Magellan SporTrak Map which is a Euro base map. This certain GPS handheld mapping device is a scraggy well-built, lightweight and compact GPS handheld mapping device that provides an exceptional benefit for the outdoor junkies. Aside from that interesting of feature, the Magellan SporTrak Map as a GPS handheld mapping device has an accuracy of about 3 meters and highlights a 2 MB European mapping database.

For much detail, the Magellan SporTrak Map as one of the outstanding GPS handheld mapping devices has a free memory that is 6 MB for favors for downloading street-level maps. Besides of being a GPS handheld mapping device, the Magellan SporTrak Map contains seven huge graphical navigation displays for the adventure junkie to fully and clearly view all the details stored in such GPS handheld mapping device. With this certain GPS handheld mapping receiver, I am sure that you will gain something that will add a new level of pleasure to your adventure.

Another noticeable GPS handheld mapping receiver is the Garmin GPSMAP 76 unit. The Garmin GPS Company has designed this GPS handheld mapping receiver to give those adventure enthusiasts concrete GPS positioning through the correction data gathered from the Wide Area Augmentation System. This smart GPS handheld mapping receiver highlights a built-in quad helix antenna for an exceptional coverage and this particular GPS handheld mapping device can offer accurate position to less than three meters when acquiring WAAS adjustments.

Besides, the Garmin GPSMAP 76 as one of the notable GPS handheld mapping devices has an internal memory that is capable of eight megabytes for obtaining optional MapSource which is detailed maps, including some marine cartographic sketches. Lastly, this GPS handheld mapping device is capable of storing exact details about the worldwide cities and the nautical navigation aids.

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