The RST-HADB-GPS-GLONASS-01 from Raltron is a GPS/GNSS Antenna with Frequency 1575.42 ±15 MHz / 1227 ±12 MHz(GPS), 1598 to 1609 MHz / 1242 to 1252 MHz(Glonass), Gain 3 to 33 dBi, Noise Figure 2 dB, Voltage 3 to 12 V, Impedance 50 Ohms. Tags: Helical. More details for RST-HADB-GPS-GLONASS-01 can be seen below.