Patent ID: 7117022

Claim:
A code division multiple access (CDMA) base station system, comprising: a channel card, configured to modulate and output a first signal and receive and demodulate a second signal; a transmitter configured to transmit the first signal outputted from the channel card through a first antenna; a receiver configured to receive a signal from a second antenna and provide the received signal to the channel card; a radio frequency (RF) characteristic analyzer, configured to monitor output signals of the transmitter and the receiver and analyze characteristics of the transmitter and the receiver, and generate a result of the monitoring and analysis; a first processor configured to provide an interface among the channel card, the transmitter, the receiver, and the RF characteristic analyzer and to receive the result from RF characteristic analyzer; a power level measuring device, to measure a power level of a final end of the base station, and provide the power level to the first processor; and a second processor, configured to provide an interface between the first processor and an exchange, wherein the RE characteristic analyzer comprises: a first analyzing circuit to monitor and analyze the output signal of the transmitter; a second analyzing circuit for monitoring and analyzing the output signal of the receiver; and an alarm circuit to receive analyzed data from the first and second analyzing circuits and generate an alarm signal.