In a wireless system test, it is an extremely troublesome work to change connection of measuring instruments for each test item, as many measuring instruments are used.
With ETC automatic inspection system ME8500, measuring instruments and OBE or RSU signal are switched automatically by microwave signal switching equipment ME8530, signal switching and frequency counter ME8540 and connection and power source controller ME8580.
Furthermore, correction to insertion losses of components such as the microwave coaxial cable and switch is also executed, and more accurate test results can be obtained.