Keysight Technologies 11644A K, User'S And Service Manual

Page: 42 / 72

5-6 X, P, and K 11644A
Performance Verification
System Operation Checks
System Operation Checks
Use the following procedures and the standard section in this kit to verify the operation of your calibrated
system.
NOTE If you are using a different analyzer, refer to its documentation for specific measurement
instructions.
8510 System Operation Check
NOTE The 8510 network analyzer is no longer being sold or supported by Keysight. However, you
can download the 8510 class assignments and standard definitions from Keysight’s
Calibration Kit Definitions Web page at www.na.tm.keysight.com/pna/caldefs/stddefs.html
1. Short the standard section and perform an S
11
and an S
22
measurement to verify that the ripple on the
reflection of the shorted waveguide section does not exceed the limits listed in the tables on page 5-11 .
If the ripple is less than the acceptable value, then the combination of directivity and source match
errors of the calibrated system is within the factory specified values.
2. Check the S
11
and S
22
of a thru measurement. As in the previous step, the results of this check contain
the directivity error, but, because of the thru connection to port 2, this measurement also contains
errors contributed by other terms, including load match, the S
11
and S
22
of the standard sections, and
transmission tracking. The actual or absolute return loss of the standard section should not exceed the
acceptable values listed on page 5-11 .
3. Make an S
21
and an S
12
measurement. Ideally, the standard section is low loss. These measurements
verify that the combination of source match error and load match error do not cause excess ripple on
the trace. The trace ripple should not exceed the acceptable values listed in the tables on page 5-11 .
4. Record the results of each test in Table 5-1 through 5-3 .
The S
11
and S
22
of a Shorted Standard Section
1. Set the averaging factor to 512.
2. Perform a TRL calibration.
3. Turn on the calibration.
4. Connect the standard section to port 1.
5. Connect the short to terminate the standard section.
6. Connect the load to port 2.