Factors Affecting GPS Module Accuracy

- Apr 17, 2018-

The positioning accuracy of the GPS module depends on many aspects, such as the satellite clock and orbit difference from the GPS system, the number and geometry of visible GPS satellites, solar radiation, the atmosphere, and multipath effects. In addition, the same GPS module will also have different positioning errors due to antenna and feeder quality, antenna position and direction, test period, open sky range and direction, weather, and PCB design. Even if different GPS modules of the same model with the same manufacturer use the antenna diversity device to test simultaneously, the static drift amount will be different.