Verifying Cal Kit Operational Check Failure
If your test results fail the Cal Kit Operational Check Reflection Tracking limits,
see
and
. Verify the following:
1.
Ensure the test set is turned on and connected properly to the analyzer.
2.
Check all appropriate connectors for damage, cleanliness, and proper torques.
3.
Repeat the relevant 1-Port calibrations using another ECal or mechanical
standard.
4.
Verify that the PNA is operating properly and meeting its published specifications.
If the PNA is connected to the test set it will fail the Operational Check. Refer to
“Network Analyzer Requirements” on page
ECal Confidence Check
The following ECal Confidence Check is a method the verify the accuracy of a 1-Port
calibration performed with mechanical standards or an ECal module. To perform this
check, the test port of the ECal module must connect directly to the Test Port being
verified (without adapters).
1.
Perform an 1-Port Cal of the test set port being tested.
2.
Connect the ECal Module to the Port being verified. Terminate any remaining
ports on the ECal module.
3.
Select the Cal Set to be verified. Select
[Cal]
>
Cal Set...
>
Cal_File
>
Apply Cal
>
Close
-OR-
([CAL] Cal Set & Cal Kits > Cal Set... > Apply Cal)
.
If the
“
Choose Stimulus
Settings...” prompt appears, select
Change the active
channel’s stimulus... > OK
>
Close
.
4.
Select
Response > Cal
>
More
>
ECal
>
ECal Confidence Check
-OR-
(Response > Cal > ECal Confidence Check...)
.
5.
Click
Change Measurement
and select the test port S-parameter
Apply
>
OK.
Click
Read Module Data
.
6.
Select the ECal module you are using, and select
ECal Module Memory
>
Factory
>
OK
.
Figure 5
7
ECal Confidence Check
68
U3042AE12 User's and Service Guide
