| 摘要 |
An apparatus for testing multiple mobile communication network comprises an antenna; first and second testing units, each unit comprising radio transceiver circuitry for communicating with a respective one of the multiple mobile communication networks; means for retaining a network authentication device for the respective network; control circuitry for (i) maintaining a call over the respective network using the antenna and the respective radio transceiver circuitry; and (ii) measuring the performance of the respective network during the call; wherein the apparatus comprises means for controlling the first and second test units to maintain a call over their respective networks and to measure the performance of their respective networks at substantially the same time. |
