Agilent Technologies 8719ES User Manual page 325

14.Make a "thru" connection between the points where you will connect your device under
test as shown in Figure
NOTE Include any adapters or cables that you will have in the device measurement.
That is, connect the standard device where you will connect your DUT.
NOTE The thru in most calibration kits is defined with zero length. The correction
will not work properly if a non-zero length thru is used, unless the calibration
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
calibration is started.
15.To measure the standard, when the trace has settled, press:
DO BOTH FWD+REV
The analyzer underlines the softkey label after it makes each measurement.
16.Press
ISOLATION
If you will be measuring devices with a dynamic range less than 90 dB, press:
OMIT ISOLATION
If you will be measuring devices with a dynamic range greater than 90 dB, follow
these steps:
a. Connect impedance-matched loads to PORT 1 and PORT 2. Include the adapters
that you would include for your device measurement.
NOTE 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.
If loads can be connected to both port 1 and port 2 simultaneously, then the
NOTE
following step can be performed using the
c. Press
Cal
FWD ISOL'N ISOL'N STD
d. Return the averaging to the original state of the measurement, and press
RESUME CAL SEQUENCE
6-9.
and select from the following two options:
RESUME CAL SEQUENCE
REV ISOL'N ISOL'N STD
.
Calibrating for Increased Measurement Accuracy
Full Two-Port Error Correction (ES Analyzers Only)
must be selected before the
USER KIT
DO BOTH FWD + REV
ISOLATION
ISOLATION DONE
softkey.
.
Cal
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