We offer the best mobile and Handheld GPS (Global Positioning System) devices from all the major brands including Garmin GPS and Magellan GPS. The Global Positioning System (GPS) is the only operational satellite navigation system used for determining your precise location almost anywhere on Earth. It uses an intermediate circular orbit (ICO) satellite constellation of at least 24 satellites. The accuracy of the GPS signal itself is improved significantly with WAAS (Wide Area Augmentation System) error-correcting technique, and a WAAS-capable receiver provides position accuracy of better than three meters (ten feet) 95 percent of the time.

Optics Planet is an authorized US dealer of portable GPS navigation devices and GPS Accessories.  We offer  Brunton Navigation Systems , Bushnell Navigation Systems , Cobra GPS, Garmin GPS, JVC GPS, Konus Navigation Systems, Magellan GPS, Navman GPS and Pharos GPS.  In addition to portable GPS navigation receivers and GPS tracking devices, we stock a full line of authentic GPS Accessories including GPS holsters , cases, mounts, GPS memory cards, GPS software and GPS cables and Adapters.  We also keep in stock the latest altimeters, compasses, and even weather instruments such as barometers and thermometers so you always know the weather at the place you are navigating to!  Our featured products include the portable handheld and wrist watch Bushnell DNS, or Bushnell Digital Navigation systems, which is the best useful gadget gift for any hiker, outdoorsman or hunter. Also, check our Compass page for a wide selection of compasses.

A GPS unit is able to calculate its position by timing the amount of time it takes for a signal to come back from the satellites orbiting the earth. The satellites above the earth constantly send GPS signals out to earth and the handheld gps units are able to accept the signal and use that signal to triangulate your position on earth (in conjugation with the geometric trilateration). A gps system may display the information in a varied amount of ways. One of the most popular methods will be to showcase a map and offer the user a way to get to a location and or find out where they are currently located. Some may even be able to triangulate and measure the amount of time it may take to get somewhere based on the traffic. The GPS signal does not cost (from a membership perspective). One only has to purchase the device and this gps will work anywhere in the world. Typically it takes about three satellites to triangulate one position, since space has three dimensions. But Gps units tend to use four satellites to counter the effect of time. Four satellites are required for normal use of your GPS. This technology is used in a large number of fields and in many cases may prove to be life saving. The US military constantly uses the Global positioning system, to insure that their troops are at the right location or knowing where to fire and so fourth. The technology is very popular, useful, and has transformed the way we roam this globe.

Some of the most popular GPS manufactures would have to be Garmin gps, Bushnell gps and Magellan gps. These manufactures insure that their gps units are at the top of the market and insure that their is enough diversification in their products line to be able to accommodate most individuals. We offer a large collection of gps accessories as well to makes sure that your gps unit has all the elements that you may way. Gps Accessories are a great way to personalize your gps unit.