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Each 11974 series preselected millimeter mixer is characterized for conversion loss versus frequency. Calibration accuracy ranges from 1 dB at 26.5 GHz to 2 dB at 75 GHz. Just enter the conversion loss data into your host spectrum analyzer and then make amplitude calibrated measurements. Features * Preselection eliminates the need for signal identification and improves dynamic range * Supplied with calibration data * No bias required * +25 dBm safe input level * Optional input isolator improves amplitude accuracy Keysight (formerly Agilent) 11974 series preselected millimeter mixers are compatible with Keysight (formerly Agilent)'s 8566B, 8560 series and E4407B of rugged portables1, 70000 Series modular spectrum analyzers and the E4440A/46A/48A PSA Series1. All versions of 8563A spectrum analyzers and 70907B external mixer interface modules are fully compatible with the 11974 series. The 11974 series connect to a standalone power supply with a convenient 6-foot cable. Use the same power supply with any 11974 series preselected mixer.