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A new transportable 142 GHz ozone spectrometer (ozonometer) is created at P.N.Lebedev Physical Institute. Its room temperature heterodyne receiver operating in amplitude-switching mode is based on planar Schottky diode mixer. Both low-loss input Gaussian optics and solid-state Gunn-diode local oscillator are used in the receiver. Optical block of the receiver includes antenna, chopper wheel, room-temperature...
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