Case Study Solving a High RSSI Issue with InterferenceAdvisor TM The uplink (UL) Received Signal Strength Indicator, or RSSI, indicates the total wideband received power within the entire channel bandwidth. UL RSSI that is too high will contribute to poor network quality. Interference caused by the high noise floor can lead to frequent dropped calls, call setup failure, and poor voice quality. An RF repeater contains bi-directional amplifiers (BDA), which consist of forward- and reverse-power amplifiers, as well as duplexer filters for forward and reverse paths. One of the frequent problems with in-building installations is inadequate gain control of the BDA, causing saturation in the donor site. A service provider in Southeast Asia was experiencing the following RSSI issues: •

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