GSM / 868MHz YAGI Antenna +23dBm Gain. Frequency Range 860MHz to 960MHz 1770MHz to 1880MHz +23dBi Gain VSWR ;2:1 Vertical Polarisation 50 Input Impedance 18 elements 5.18 metres RG58 to SMA(M) Aluminium ; ABS U Bolt Fixing Operating Temperature -35 to +80°C