GPS Receiver System The GPS receiver’s job is to locate four or more satellite, and calculate the distance to each. GPS receiver must find the distance to three satellites of known position to locate itself. How to locate itself? Example. The GPS has to know the location of at least three satellites above you, and the distance between you and each of those satellites to make this calculation. The GPS receiver analyzes high frequency, low-power radio signals from the GPS satellites to calculate both these requirements. The receiver can figure out how far the signal has traveled by timing how long it took the signal to arrive.