Multi Frequency Operation: 433/868MHz, GSM 900/1800/1900MHz and UMTS. Max gain: +3dB. VSWR <4:1. 50 Ohm impedance. Vertical Polarization. 3 metres RG174 Lead SMA (M). Waterproof ABS Enclosure, ideal for external use. Operating Temperature –30 to +85°C. Di