What is “GPS”?
A worldwide locating system. GPS (Global Positioning System) is a Satellite navigation system under the jurisdiction of the US Pentagon. This satellite system is comprised of 24 satellites, orbiting the earth. The satellites send out, in short intervals, a high frequency signal which modulates according to the transmission time, the position und identity of the satellite. This signal can be picked up and decoded by a GPS receiver. With the signal from at least 4 Satellites the receiver is able to pinpoint its position. The precision of this procedure’s point determination currently amounts to approx. 10-20 m. Less accurate is the altitude. Here the deviation can be greater than 100 m. The great advantage of this system is that it functions all over the world regardless of weather or position. In this way it is irrelevant if the user is still or in motion. The only requirement for determining a position with GPS is unobstructed “eye contact” of the GPS antennae to the satellite. For thi
GPS is the Global Positioning Satellites. The satellites are a constellation of low earth orbiting owned and operated by the American military that broadcast highly accurate timing signals, which allow a receiver to determine where it is. In the ESP3000 an ultra low power embedded GPS receiver allows the unit to continuously track the location of the vessel.
