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Scanning Receivers

Scanning receivers which meet the requirements of CISPR 16-1 are satisfactory for measurements. Either manual or automatic frequency scanning may be used. Special consideration shall be given to overload, linearity, selectivity, and the normal response to pulses.

NOTE – Spectrum analysers and scanning receivers are particularly useful for disturbance measurements. The peak detection mode of spectrum analysers and scanning receivers provides a display indication which is never less than the quasi-peak indication for the same bandwidth. It may be convenient to measure emissions using peak detection because of the faster scan possible with peak than with quasi-peak detection.

When quasi-peak limits are being used, and a peak detector is used for time efficiency, any peak measurements at or above the quasi-peak limit shall be re-measured using the quasipeak detector.


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