Base-station radio-frequency testing system applicable to LTE (long term evolution) system

The utility model discloses a base-station radio-frequency testing system applicable to an LTE (long term evolution) system. The base-station radio-frequency testing system is connected with a base station to be tested and is used for testing radio-frequency data of the base station to be tested. The base-station radio-frequency testing system comprises a frequency-spectrum analyzer, a channel simulator, a useful signal generator, an interference signal generator, a broadband signal generator, a power meter, a main control computer and a radio-frequency box. The main control computer is connected with the frequency-spectrum analyzer, the channel simulator, the useful signal generator, the interference signal generator, the broadband signal generator, the power meter and the radio-frequency box. The radio-frequency box is connected with the frequency-spectrum analyzer, the channel simulator, the useful signal generator, the interference signal generator, the broadband signal generator, the power meter and the base station to be tested. The power meter is connected with the broadband signal generator. The radio-frequency box comprises a switch, a load, an isolator, a coupler, an attenuator, a combiner, a multi-frequency combiner and a radio-frequency interface.