4-16
Supplement for the User’s Guide (Firmware Version 7.68)
Calibrating for Noninsertable Devices
3. Connect the A3 adapter to “Reference Port 1” as shown in Step B of Figure 4-3 (or
Figure 4-4). Connect a short to the open end of the A3 adapter.
4. Measure the delay of the adapter by pressing .
5. Divide the resulting delay measurement by 2 to determine the delay of the thru and the
short in one direction.
6. Determine the offset delay of the calibration short by examining the define standard
menu (see the “Define Standard Menus” section in Chapter 7).
7. Subtract the offset delay of the short (determined in step 6) from the delay of the thru
and the short in one direction (determined in step 5). The result is electrical delay of the
thru. This value is used in the next step.
8. Modify the calibration kit thru definition by entering in the electrical delay of adapter
A3. Save this as a user kit.
For example, if A3 has 100 ps of delay, press:
9. Perform the desired calibration with this new user kit.
10.Connect the test device as shown in the figure titled “Calibrated Measurement” (in the
“Adapter Removal” subsection of the “Calibrating for Noninsertable Devices” section)
and measure the device.
Format
Cal
4 x1
0.100 G/n
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