Good quality with high performance GSM GPS combined Active antenna Description: Working frequency 1575.42mhz LNA gain(without cable) 27dB Typical noise figure 1.5dB VSWR <2.0v DC, 3-5v±0.3v DC Current 15mA Max.GSM working frequency 824-894/1710-1880mhz VAWR 2:1 Impendence 50ohm Peak gain 2dBi at 900mhz,2dBi at 1800mhz Azimuth Omni-directional polarization,linear polarization Weight <160 gram Size 80×13mm Cable RG17404m long Housing Black Mounting Adhesive tape Waterpoof 100%