Agilent Technologies 8753ET User Manual page 325

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.
NOTE If loads can be connected to both port 1 and port 2 simultaneously, then the 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
and select from the following two options:
DO BOTH FWD + REV
RESUME CAL SEQUENCE
REV ISOL'N ISOL'N STD
.
Calibrating for Increased Measurement Accuracy
Full Two-Port Error Correction (ES Analyzers Only)
USER KIT
softkey.
ISOLATION
must be selected before the
.
ISOLATION DONE
Cal
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