The TA7982 Series Tower Top Amplifier system is a full-featured, high performance TTA system utilising exceptional preselector selectivity and redundant quadrature-coupled ultra low noise amplifiers (LNAs) to improve the base station receiver sensitivity performance of a network site. The TTA system comprises two components; the Tower Top Amplifier (TTA), and a Receiver Multicoupler/TTA Controller unit (RMC).

The small size of these TTA units reduces tower loading, and the integral milled preselector increases the TTA’s rejection of unwanted RF signals by placing all of the system’s >110dB of preselector selectivity before the sensitive TTA LNAs and RMC’s active circuitry. Two independent quadrature LNAs in the TTA, each powered by separate power supplies, provide industry-leading low noise figure and intermodulation (IM) performance, and the redundancy to improve system resiliency, fault-tolerance and network availability. A comprehensive microprocessor-controlled status and fault monitoring system in the TTA provides continuous monitoring and switching of the redundant LNAs.

The RMC features front panel switches, front panel indicators, and a Form-C relay provide system configuration and fault status functions. Selectable inline Post Filter connections allow configuration of reduced passband widths when required, and Bypass, Terminated and Test Port functionality is also included to support testing, commissioning and PMI activities. Extensive functionality including Auto Gain, Auto Mode, Gain Boost, Auto Bypass and Auto Recover capabilities, monitoring and alarm diagnostics, and communication management is also available for configuration via an on-board user-friendly webserver Graphical User Interface (GUI).