Anritsu introduces the MX786201A Rapid Test Designer (RTD) for analyzing W-CDMA devices. Designed to be used with the company's MD8480B W-CDMA signaling tester, the RTD helps W-CDMA user equipment (UE) developers and network operators conduct interoperability tests on 3G mobile UE that go beyond existing conformance tests and test networks. The system consists of a Windows-based PC connected to the MD8480B and a set of core tools that supports the test process - design, test, analysis, test execution, and results. It enables the effective and efficient development of test case libraries for a variety of purposes, including acceptance testing, integration testing, interoperability testing, generating variants of existing tests, application testing, and regression testing. Test scenarios include location update, success/reject; routing area update, success/reject; RRC connection, CELL_FACH and CELL_DCH; authentication and integrity; radio bearer establishment; CS call (normal and emergency); CN paging, and PS session.