Abstract: A test procedure control unit outputs control information including time setting information along a procedure for carrying out a transition test of a connection state of a mobile communication terminal (UE) of a cellular system. A transmitting/receiving unit transmits test signals corresponding to cells toward the UE in accordance with the control information, and receives a response signal from the UE. A reception measurement unit measures a transition time of the connection state among the cells of the UE, in accordance with the response signal. A deciding unit receives a measured result of the transition time, and decides whether or not the connection state of the UE is transiting in accordance with the scheduled time-passage. The indicating unit causes the display unit to indicate, the decided result transition among the cells in accordance with the time-passage, so as to be visually recognizable on a single coordinate.

Abstract: In a tip portion structure basically having a substrate, a plate spring, and a ground block, the substrate is attached to a signal line on a back surface of the substrate and is contacted on the tip with the signal electrode of the DUT placed on a device stage. The plate spring is made of a resilient material, placed on the front side of the substrate, and positioned to apply a pressure to the substrate. The ground block is positioned between the signal line and the device stage functioned as a ground electrode of the DUT. Alternatively, the tip portion structure further may have a ground plate or a ground surface formed of a conductive thin plate covering entirely the front surface of the substrate, and shaped to surround the signal line in cooperation with the ground block . A plurality of the signal lines may be arranged in parallel on the same plane of the substrate.