dr. Tech 800/1900MHz Dual Band Cell Phone Signal Booster and Yagi Antenna Frequency range: Uplink: 890 - 915 MHz 1710 -1785 MHz ; Downlink: 935 - 960 MHz 1805 - 1880 MHz Designed for easy installation and simple to use Greatly reduces dropped calls, extends signal range, and increases data rates Dual band CDMA 800MHz and PCS 1900MHz