The M9408B is a 2-Slot, 2U PXIe Reflectometer module with pulse capability. Frequency of the module varies depending on option selected. The M9408B Reflectometer module works in combination wiht the PXI VNA module to expand its transmission and receiver measurement capabilities with higher output power and pulse measurement applications. The module includes test and reference couplers, DPDT transfer switches, an SPST pin switch, and a band-pass filter and attenuator.