Abstract: A RF characteristic analyzer for a communications system including an input/output module, coupled to the communications system, a first analyzing circuit coupled to receive and analyze a transmission signal of the communications system through the input/output module, and a second analyzing circuit coupled to receive and analyze a reception signal of the communications system through the input/output module. Also included is an alarm circuit coupled to receive analyzed data from the first and second analyzing circuits, and to provide at least one alarm message according to the analyzed data.

Abstract: A CDMA base station system having increased reliability is disclosed. The base station includes a channel card for modulating/demodulating a transmitted/received signal; a transmitting section for transmitting the signal outputted from the channel card; a receiving section for receiving a remote signal and sending the received signal to the channel card; and a radio frequency (RF) characteristic analyzer, to analyze characteristics of the transmitting section and the receiving section by monitoring output signals thereof and communicating a result to a base station processor. The base station also includes a first processor for interfacing among the channel card, the transmitting section, the receiving section, and the RF characteristic analyzer; a power level measuring device for measuring a power level of a final end of the base station and transmitting the power level to the base station processor; and a second processor for interfacing between the first processor and an exchange.