XHTECH 11dBi 824-960MHz GSM CDMA Outdoor Yagi Antenna for Cell Phone Signal Booster This Outdoor Yagi Directional for 800/850/900MHz Band Only. is Not compatible with 1700/1800/1900/2100MHz. Easy to mount on either at flat surface or a pole. Frequency Range: 824 - 960MHz Gain: 11dBi Connector Type: N Female