The GPS-L1L2-28MAG from PCTEL is a GPS/GNSS Antenna with Frequency 1575.42 ± 10 MHz (GPS L1), 1227.60 ± 10 MHz (GPS L2), Noise Figure 2.5 dB, Voltage 2.5 to 5.5 V, Current 37 to 50 mA, Impedance 50 Ohms. More details for GPS-L1L2-28MAG can be seen below.