The DTma900VG16A from CCI is a 900 MHz Twin Dual Duplexed Tower Mount Amplifier. It contains two amplifiers in a single package, each amplifier is full band and fully duplexed. This tower mount amplifier is compliant with the AISG 2.0 specification and backward compatible with GSM BTS and UMTS 900 MHz equipment. It provides a convenient package for sites using dual polarization antennas. The twin Tma package reduces tower loading, leasing, and installation costs. It provides a convenient package for sites using dual polarization antennas. The twin Tma package reduces tower loading, leasing, and installation costs. The gain of the amplifier can be remotely adjusted via the AISG protocol and can be set to suit BTS powers and link budgets.