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LCD, Liquid Crystal Display or Liquid Crystal on Silicon, has been around for some time. This technology can be commonly found in popular HDTVs, computer or laptop monitors and Sony's new PSP. But the downside to LCD screens is the dreaded "dead pixel" or "hot pixel" phenomenon. Dead pixels or "hot pixels" are defined as "a pixel on an LCD monitor that remains unlit, or black, when it should be activated and displaying a color.

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wheres fido use a gps pet tracking device to find him

There are two parts to the GPS Pet Tracking devices: GPS receiver and GSM modem. GPS is the Global Positioning System. GSM is the Global System for Mobile communication. GPS pet tracking can be used to determine where you are while hiking or travelling in your car. It is also used for locating pets that get lost.

GPS pet tracking is the most reliable pet tracking available -- also the most expensive. If you have a dog or cat that escapes a lot, you might want to consider a GPS pet tracking device. GPS is a satellite based positioning system that consists of a network of 24 satellites orbiting the earth.

These GPS satellites broadcast signals from space that are picked up by GPS receivers. It provides accurate location and time information for an unlimited number of people regardless of location or time of day. Transportation systems everywhere require GPS to provide navigation for aviation, ground, and maritime operations.

GPS is an integral component of the Global Information Infrastructure, with applications ranging from mapping and surveying to international air traffic management and global change research. Space, Control and User are the three segments of a GPS system. The Space Segment includes the 24 satellites in 6 orbits 10,900 nautical miles above earth. They are placed so that there is always a minimum of 6 satellites in view at any time anywhere in the world. These satellites continuously broadcast position and time to users all over the world.

The Control Segment consists of 3 segments: a master control station in Colorado Springs, 3 ground antennas, and 5 monitor stations. The monitor stations track the GPS satellites that are in view collecting data. They send that data back to the master control station.

That data is then re-formatted and resent back to each of the satellites. The User Segment is made up of the receivers that allow operators everywhere to receive the GPS broadcasts to computer their precise position. Now back to those roaming pets of ours. There are several models of GPS pet tracking systems.

All but one of them come with monthly fees, along with their steep initial cost. RoamEO is currently the only GPS pet tracking system that has just a one time cost. Zoombak, PetSafe GPS Locator, and Global Pet Finder all require monthly fees. RoamEO is easy to setup to create a virtual fence anywhere you need it. You set it up just by walking the perimeter of your fence line, and it commits the coordinates to memory.

Your pet wears a special collar, and you always know where your pet is. RoamEO's pet tracking device can pinpoint your dog's location and show you where he's headed. RoamEO is designed to constantly track your pet, whether he is inside or outside the perimeter of your established GPS Fence. It is designed to track up to 3 pets at one time.

Check out the new RoamEO GPS Pet Tracking at PetAbbey.com -- your sourse for high quality pet products. You have full rights to copy this article and distribute it, as long as you also copy this resource paragraph, including all links.

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