Agilent Technologies U2000 Series Manuel de service télécharger pdf (Page 77)

Specifications and Characteristics 3

U2000 Series Operating and Service Guide 61

Calibration Factor and Reflection Coefficient

The Calibration Factor (CF) corrects the frequency response of the sensor.

The Reflection Coefficient (Rho, or ρ) relates to the SWR based on the

following formula:

Typical uncertainties of the CF data are listed in the following tables.

As the U2000 Series USB power sensors have two independent

measurement paths (high and low power paths), there is only one set of

CF data used for both high and low power paths for each sensor. The

uncertainty analysis for the calibration of the sensors was done in

accordance with the ISO Guide. The uncertainty data reported on the

calibration certificate is the expanded uncertainty with a 95% confidence

level and a coverage factor of two.

SWR

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Agilent Technologies U2000 Series Manuel de service Page 77