Noise Com announces the NBS-Series of broadband Noise Calibration Standards for calibration laboratories, radiometer test and verification, and low noise amplifier tests. Using a low-loss waveguide horn design, Noise Com isolates the cold parts from the waveguide, which is controlled at ambient temperature, and avoids condensation of humidity and errors from temperature gradients. The standard achieves accuracy of better than +0.24/ל.36 Kelvin (K) at 26.5 GHz. The NBS-Series is also equipped with automatic purge. The design includes paths directing the boil off of the liquid nitrogen to purge normal air and dust particles out of the microwave cavity.
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