Agilent Technologies 8719D User Manual page 237

The thru in most calibration kits is defined with zero length. The correction
will
kit is modified to change the defined thru to the length used. This is important
for measurements of non-insertable devices (devices having ports that are both
male or both female). The modified calibration kit must be saved as the user
calibration kit, and the ,JJSEIK KXT must be selected before the calibration is
started.
16. To measure the standard, when the trace has settled, press:
The analyzer underlines the softkey label after it makes each measurement.
If you will be measuring devices with a dynamic range greater than 90 dB, follow these
q
steps:
a. Connect impedance-matched loads to PORT 1 and PORT 2. Include the adapters that
you would include for your device measurement.
If you will be measuring highly reflective devices, such as filters, use the test
device, connected to the reference plane and terminated with a load, for the
isolation standard.
b. Activate at least four times more averages than desired during the device
measurement.
18. To compute the error coefficients, press:
The analyzer displays the corrected measurement trace. The analyzer also shows the
notation Cor at the left of the screen, indicating that error correction is on.
You can save or store the measurement correction to use for later
measurements Refer to the "Printing, Plotting, and Saving Measurement
Results" chapter for procedures.
19. This completes the full two-port correction procedure. You can connect and measure your
device under test.
work properly if a non-zero length thru is used, unless the calibration
Optimizing Measurement Results 5-23