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In telecommunication, a measuring receiver or measurement receiver is a calibrated laboratory-grade radio receiver designed to measure the characteristics of radio signals. The parameters of such receivers (tuning frequency, receiving bandwidth, gain) can usually be adjusted over a much wider range of values than is the case with other radio receivers. Their circuitry is optimized for stability and to enable calibration and reproducible results. Some measurement receivers also have especially robust input circuits that can survive brief impulses of more than 1000 V, as they can occur during measurements of radio signals on power lines and other conductors. ==Applications== Measuring receivers are used with calibrated antennas to * determine the signal-strength and standards-compliance of broadcast signals, * investigate and quantify radio-frequency interference, * determine compliance of a device with electromagnetic interference and TEMPEST standards and regulations. Measuring receivers are also used without antennas to * calibrate RF attenuators and signal generators. Measuring receivers are widely used in metrology and calibration lab environments, spectrum monitoring and electromagnetic-compatibility facilities. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Measuring receiver」の詳細全文を読む スポンサード リンク
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