In a case where reception power in a radio access point is high by
external noise, the normalcy of the radio access point is tested. In
order to judge the normalcy of the radio characteristic of the radio
access point, a test is performed through the calling connection between
a testing access terminal in the radio access point and a predetermined
device. An RSSI is measured before and after the transmission of a test
signal. When the RSSI exceeds a threshold value, the path loss of a
reverse link connected from the radio access point to the testing access
terminal is increased by an attenuator. Then, reception power in the
testing access terminal decreases. Thus, initial transmission power in
accordance with the reception power from the testing access terminal is
raised and the calling connection of the testing access terminal can be
performed even under the external noise.