Agilent Technologies 8753ES Option 011 Service Manual page 345

9. Disconnect the short, and connect an impedance-matched load to PORT 1.
10.To measure the standard, when the displayed trace has settled, press
FORWARD: LOAD
The analyzer underlines the
11.Repeat the open-short-load measurements descried above, but connect the devices in
turn to PORT 2, and use the
REVERSE: LOAD
12.To compute the reflection correction coefficients, press
13.To start the transmission portion of the correction, press
14.Make a "through" connection between the points where you will connect your device
under test as shown in
Include any adapters or cables that you will have in the device measurement.
NOTE
That is, connect the standard device where you will connect your device under
test.
NOTE The through in most calibration kits is defined with zero length. The
correction will not work properly if a non-zero length through is used, unless
the calibration kit is modified to change the defined through 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
before the calibration is started.
15.To measure the standard, when the trace has settled, press
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 ISOLATION DONE
• 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.
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.
Chapter 11
.
softkey after it measures the standard.
LOAD
REVERSE: OPEN
softkeys.
Figure 11-1.
and select from the following two options:
Full Two-Port Error-Correction Procedure
,
REVERSE: SHORT
STANDARDS DONE
TRANSMISSION
USER KIT
DO BOTH FWD+REV
.
Error Terms
, and
.
.
must be selected
.
11-5