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circonference
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The GPS receiver measures the distance from it to a GPS satellite. Then it measures the distance to another GPS satellite. The location is somewhere on a line made up of the millions of plaes that these two distances cross each other. A third satellite distance is required to find out where your GPS receiver is, somewhere on that line.This process is called "Trilateration" (Three distances). (Not triangulation).If you want to know how high you are above sea level, you need a distance from a fourth satellite.
lasers to find speed and gps to find location/distance
A GPS satellite emits a very precise and accurate time signal that the receiver can use to calculate it's distance from the satellite.
circonference
yes
The GPS receiver measures the distance from it to a GPS satellite. Then it measures the distance to another GPS satellite. The location is somewhere on a line made up of the millions of plaes that these two distances cross each other. A third satellite distance is required to find out where your GPS receiver is, somewhere on that line.This process is called "Trilateration" (Three distances). (Not triangulation).If you want to know how high you are above sea level, you need a distance from a fourth satellite.
A gps golf range finder is used by golfers to see the distance to the hole, and also the distance between the golfer and the various hazards of the course.
If you have recently got your son in football and there will be a lot of travel you can go to read reviews for a GPS online at cnet.com.
The Garmin Approach GPS will help you in being able to tell the distance between you and another object by an alert that sounds when you are too close.
Tom Tom or Garmin. You Choose!!
The Bushnell hybrid laser GPS is used by people who play golf. It helps you find the distance to the next hole. It is a rangefinder and a GPS at the same time.
Borrrow a GPS, drive somewhere, compare the distance.
lasers to find speed and gps to find location/distance
A GPS satellite emits a very precise and accurate time signal that the receiver can use to calculate it's distance from the satellite.
Most phones have GPS device inside. You can't get true gps though without it.