Supporting Equipment for Wireless Tests of Navigation Satellite

User equivalent ranging error (UERE) of navigation satellites which is based on broadcast message can be affected by a number of factors. Multipath effect is one of the major contributors to the error of pseudo range. Experiments and tests are to determine that how error of pseudo range is connected to the shape of a satellite, and to verify how to lessen multipath effect by re-arranging the outer structure of a satellite, such as solar arrays or antennas. A series of automated equipment are built according to the technical conditions of the experiments, which help navigation satellites inhibit multipath effect.