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A-4 85036B/E
Standard Definitions
Nominal Standard Definitions
Nominal Standard Definitions
Standard definitions provide the constants needed to mathematically model the electrical
characteristics (delay, attenuation, and impedance) of each calibration standard. The
nominal values of these constants are theoretically derived from the physical dimensions
and material of each calibration standard, or from actual measured response. These values
are used to determine the measurement uncertainties of the network analyzer. The
standard definitions in Table A-3 list typical calibration kit parameters used to specify the
mathematical model of each device. This information must be loaded into the network
analyzer to perform valid calibrations. Refer to your network analyzer’s user’s guide for
instructions on loading calibration constants.
NOTE The values in the standard definitions table are valid only over the specified
operating temperature range.
Setting the System Impedance
This kit contains only 75 ohm devices. Ensure the system impedance (Z
0
) is set to 75 ohms.
Refer to your network analyzer’s user’s guide for instructions on setting system impedance.