This antenna is for outside placement to pickup 'weak' cell signals from the nearest towers, which is then sent to your amplifier. This antenna only picks up PCS signals (1900 MHz used by Cingular, Sprint, T-Mobile and other PCS carriers).
How These Cell Booster Systems Work
This antenna is only one part to your entire cell phone booster kit. This is the part you mount outdoors to communicate with the nearest tower. A bare minimum cell phone/data booster system will include an indoor antenna to communicate with the phones and data cards, an amplifier, and an outdoor antenna mounted to your roof to pick up the available signal (however weak) in your area, like this one.
Antenna Reception patterns

Red = E-Plane @ 850 MHz,
Green = H-Plane @ 1920 MHz
See popular solutions below, or see all Wilson Cell Phone Boosters. Dual Band: Almost all North American Carriers use either Cell signals (800 MHz) or PCS signals (1900 MHz), dual band equipment will work with both.
Complete Dual Band Booster Kits
Wilson Dual Band Cell Phone/Data Booster, SoHo Kit, 50 dBWilson SignalBoost DT Dual Band Desktop Booster KitWilson DB PRO Signal Boosting Kit, 62 dBWilson Dual Band Mobile Wireless Kit w/ 12 inch antennaWilson MobilePro Wireless Dual Band BoosterDual Band Amplifiers
Wilson Dual Band Mobile Amplifier, 40 dBWilson DB PRO Dual Band Amplifier, 62 dBDual Band Outside Antennas
Wilson Weatherproof/Marine Cell/PCS Antenna for Buildings or BoatsWilson Glass Mount Dual Band Cell/PCS AntennaWilson Glass Mount Mini Dual Band Cell/PCS AntennaWilson Magnet Mount Cell/PCS Antenna, Male SMA ConnectorWilson Magnet Mount Cell/PCS Antenna, Female SMA ConnectorWilson Trucker Mirror Mount Cell/PCS AntennaWilson Mini Magnet Mount Dual Band AntennaDual Band Inside Antennas
Wilson Dual Band Indoor Panel Cell Phone/Data Antenna w/ mounting hardwareWilson Dual Band Indoor Window Mount Panel Cell Phone/Data AntennaWilson Low Profile Dual Band Cell Phone/Data AntennaWilson Dual Band Dome Cell Phone/Data AntennaCellular (800 MHz) Phone Boosters: Carriers include Verizon, US Cellular, Cellular One, Alltel, Bell Canada, Telus, Cingular (Cingular also uses PCS sometimes).
Cell 800 MHz Band Amplifiers
Wilson Cellular Amplifier, 50 dBCell 800 MHz Band Outside Antennas
Wilson Yagi 800 MHz Cellular AntennaWilson Yagi 800 MHz Cellular Antenna, Extra LongCell 800 MHz Band Inside Antennas (all inside antennas are dual band, see above)
PCS (1900 MHz) Phone Boosters: Carriers include Sprint, T-Mobile, sometimes Cingular.
Complete PCS 1900MHz Band Booster Kits
Wilson PCS Phone Booster Kit, 65 dBPCS 1900MHz Band Amplifiers
Wilson PCS In-Building Amplifier, 65 dBPCS 1900MHz Band Outside Antennas