The XW1055 from Xi`an Starnet Antenna Technology is a GPS/GNSS Antenna with Frequency 1561.098±2.046 MHz, Gain -3 to 0 dBi (Passive), Impedance 50 Ohms, Axial Ratio 3 dB, Bandwidth 4.09 MHz. Tags: Helical, Gooseneck. More details for XW1055 can be seen below.