Enhanced Response Optimization; Interpolation - Agilent Technologies N9913A User Manual

 Then
 Then
 Under Transform Stimulus Settings, set the Start and Stop frequencies to
 Set Stimulus = Bandpass Impulse
 Press Meas Setup 4
 Then
 Set Media = Waveguide



Enhanced Response Optimization

When Enhanced Response Cal Type is selected, either for one calibration or for
CalReady, this setting optimizes the calibration based on the type of DUT being
measured. See also: CalReady Properties on page 78.
This setting does NOT survive Preset.
 Press Cal 5 then
 Then
 Then choose from:

Interpolation *

Highest measurement accuracy is achieved when the frequency range or
resolution settings remain the same during the measurement as when the
FieldFox was calibrated. If these settings change after performing a calibration,
the FieldFox will interpolate the calibration so that VERY accurate
measurements continue to be made.
Interpolated Calibrations are only slightly less accurate than a calibration
performed at the measurement settings. Learn more about the relative accuracy
of FieldFox calibrations on page 80.
When a calibration that you performed is being interpolated, an asterisk is added
to the Cal annotation. For example:
current Response or Mechanical cal is being interpolated. An
a CalRdy.
Calibration for NA, CAT, and VVM Modes
Transform
Transform Settings
those of the Waveguide.
Calibration Settings
Set Cutoff Frequency. This is the absolute minimum frequency of the
waveguide. This value must be less than the Start Frequency of the Waveguide.
Enter the calculated Effective VF value into the Velocity Factor setting.
More
Enh.Response
(default) An amplifier is a Non-Reciprocal device because it
Non-Reciprocal
o
has gain in the forward direction, and very high loss (isolation) in the
reverse direction. This choice provides the best correction for non-reciprocal
devices, and reasonable correction for reciprocal devices.
A reciprocal DUT is a device in which the insertion loss through
Reciprocal
o
the device is similar in both the forward (S21) and reverse (S12) directions.
A cable is a reciprocal device. This choice provides the best correction for
reciprocal devices. However, S11 measurements on non-reciprocal devices
will appear to have more return loss than the non-reciprocal choice.
is shown on the screen when the
Cal ON U*
is never added to
*
77