Dow-Key Microwave Corporation is the world's largest manufacturer of electromechanical switches for radio frequency (RF) and microwave applications. Founded in 1945, they are one of the oldest continuously operating RF/microwave switch manufacturer in the United States. They are subsidiary of Dover Corporation. Dover is a multi-billion dollar, NYSE-traded, diversified manufacturer of a wide range of proprietary electronic components and systems. Dow-Key Microwave specializes in the design and manufacture of customized, high-performance coaxial switches, waveguide switches, high-reliability (space) switches (including T-switches and switch blocks), as well as switching systems such as RF matrices (electromechanical, solid state, and fiber optic) and integrated PXI modules. We also offer system-level rack integration, programmable attenuators, and delay lines.