Dual band cellular/ PCS Low Profile Vertical antennas provide a patent-pending design and industry leading wideband performance and reliability, with minimum loss and no tuning required. They feature an attractive, compact package and are ideal for indoor or outdoor applications requiring minimum visibility. Ground plane is required. This antenna works really well with today's hands-free kits and will work exceptionally well with applications for the docking stations for the Panasonic Toughbooks. It will enhance your output and coverage when using HSPDA or "wireless" aircards. We have performed installations where we have used a dual-band cellular amplifier from Wilson Electronics - Dual-Band/GSM Direct Connect Amplifier - 812201 - for a flawless solution for field servicemen. More on the Wilson Amplifier... The Dual-Band GSM Amplifier improves signals on both Cellular (824-894 MHz) and PCS (1850-1990 MHz) bands and works with Cingular, T-Mobile and all other GSM carriers. or if you have the CDMA technology you may use the - 811201 - amplifier from Wilson. The Dual-Band Cellular/PCS Amplifier improves signal on both Cellular (824-894 MHz) and PCS (1850-1990 MHz) bands and works with Verizon, US Cellular, Cellular One, Alltel, Bell Canada, Telus, Cingular, Sprint, T-Mobile and all other Cellular/PCS carriers.