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Prototyping of a microwave interferometer setup has begun using modified police radar and satellite television parts, namely Gunn Diode oscillators (gunnplexer) and LNBs with dielectric resonant oscillators as well as PLL synthesized ones. Tests are being conducted at X, Ku, and K bands. The goal of this is to non-intrusively measure electron density in plasmas in my chamber. Results of these experiments will be posted.