WBN-YG1721V13i39D is a 14dBi GAIN high performance LPDA YAGI antenna specifically designed for outdoor wireless networks which are used to improve GSM 900, 3G 900 and 4G-LTE signal reception. Use as part of GSM/3G/4G-LTE cellular amplification system for outdoor installation in conditions of poor signal reception. This antenna features a 30cm coax lead terminated with an N-Female connector. Special order connectors are also available.