1,factory price ,Low cost 2,Band:1575.42MHz-3 MHz 3,Gain ... 50MHZ30dB in f0+/-100MHZV.S.W.R 2.0DC Voltage 3V , 5V, 3V to 5VDC current 5mA ,10mA Max Mechanical Weight 105 ... us ;Shenzhen gerbole elec technology co.,ltd is a high sino-foreign joint venture enterprise , main production rebber antenna ,yagi ... ,gain length colour and frequency ,welcome to OEM product factory price GPS antenna,gps omni antenna