TS-RP-FSR-90-43

移頻直放站（FSR）是為了解決移動信號弱的問題而設計的，它可以比射頻直放站擴大更多的覆蓋範圍，並在不允許使用光纖或專線電纜的地區減少投資。

該系統由兩部分組成：供體單元和遠程單元。施主單元通過靠近BTS的直接耦合器接收BTS（基站收發站）信號，然後將其從工作頻率轉換到鏈路頻率，並將放大的信號傳輸到遠程單元，遠程單元將信號重新轉換到工作頻率為網絡覆蓋不足的地區提供信號。移動信號也被放大並通過相反的方向重新傳輸到BTS。

The Frequency Shift Repeater (FSR) is designed to solve problems of weak mobile signal, which can expand more coverage than RF repeater and reduce investment for the areas where fiber optic or dedicated cable is not allowed.

The system consists of two parts: Donor Unit and Remote Unit. The Donor Unit receives the BTS (Base Transceiver Station) signal via direct coupler closed to BTS, then converts it from the working frequency to the link frequency, and transmits the amplified signal to the Remote Unit that will reconvert the signal to the working frequency and provide the signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.