PURPOSE: To conduct the transmission performance test between radio communication equipments properly by discriminating not only whether or not communication is available but also displaying disable communication when the transmission performance of a phone call is deteriorated.

CONSTITUTION: The system is provided with a couple of radio communication test equipments 1, 1' having the same function and the transmission performance test for a radio wave is conducted between the radio communication test equipments 1, 1'. When a timer 10 to be started expires, that is, a call signal is sent from the master side test equipment 1 to the slave side test equipment 1' and when no call reply signal is received from the slave side test equipment 1' within a prescribed time due to deteriorated radio wave transmission performance, a control section 7 discriminates it that the communication of the master test equipment 1 is not available for the slave side test equipment 1' within a prescribed time, a communication disable state is displayed by a liquid crystal display device 4 and a prescribed sound is outputted from a sound source 15. When a speech key 50 in a key pad 5 of the master side test equipment 1 is depressed, the control section 7 detects it to erase the display content of the liquid crystal display device 4 to stop sound outputted from the sound source 15.