GA500 can receives    GPS L1/L2/L5,  GLONASS L1/L2/L3, GALILEO  El/E2/E5a/E5b/E6 ,  BEIDOU B1/B2/B3 frequencies ATLAS  and L-Band which can be used  in  land survey,marine survey, channel survey, seismic monitoring, bridge survey, container operation, agriculture applications. It is especially designed for precision triple frequency positioning. Customers can use the same antenna for GPS only or dual or triple constellation applications.It has high gain and wide beam width to ensure the signal receiving performance of satellite at low elevation angle. The phase center of this antenna remains constant as the azimuth and elevation angle of the satellites change. Signal reception is unaffected by the rotation of the antenna or satellite elevation, so placement and installation of the antenna can be completed with ease.