Get directions, maps, and traffic for Prospect Park, PA. Check flight prices and hotel availability for your visit.
GPS satellites carry atomic clocks that provide extremely accurate time. The time information is placed in the codes broadcast by the satellite so that a receiver can continuously determine the time the signal was broadcast.
GPS satellites are powered by solar energy, but they have backup batteries onboard, in case of a solar eclipse. Transmitter power is only 50 Watts or less. What's the signal?