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

Page: 45 / 72

X, P, and K 11644A 5-9
Performance Verification
System Operation Checks
The S
21
and S
12
of a Thru Measurement
1. Verify that the calibration is still on.
2. Verify that the averaging factor is set to 512.
3. Connect the standard section to ports 1 and 2 to form a thru connection.
4. To set the display:
a. Press
[S
21
]
.
b.
RESPONSE [REF POSN] [5] [x1]
c. Select
[REF VALUE [0] [x1]
.
d. Press
[SCALE] [.02] [x1]
.
e. Select
MEASUREMENT [RESTART]
.
5. After one complete measurement sweep, the displayed trace should look similar to the typical corrected
trace shown in Figure 5-5 .
6. If necessary, select
Press to Continue
to update the trace.
7. Determine the greatest peak-to-peak deviation (this is any positive peak to any adjacent negative peak).
You can use the markers, as described in the first test, to determine the peak-to-peak value.
8. Record the maximum peak-to-peak value in the appropriate table on page 5-11 .
9. Repeat this procedure from step 4, and make an S
12
measurement. Record the measured value in the
appropriate table on page 5-11 .
10. If you used the delta marker mode, don’t forget to turn it off.
Figure 5-5 Typical Corrected S
21
and S
12
Standard Section Ripple