Phase Matrix, Inc. designs and manufactures RF and microwave test-and-measurement (T&M) instruments and is a wholly owned subsidiary of National Instruments Corp. Our array of instruments includes traditional benchtop frequency counters, modular (VXI) pulsed-frequency counters, modular (VXI and PXI) synthetic instruments, including downconverters, upconverters/synthesizers and local oscillators that are designed for both commercial and military applications. Phase Matrix developed the popular instrument-grade, fast-switching QuickSyn synthesizer modules, which were re-branded under the National Instruments (NI) brand along with its line of narrowband and broadband microwave components and custom integrated microwave assemblies. Please go to the NI Microwave Components website (www.ni-microwavecomponents.com) for more information.