HP HP 8712ES, Руководство пользователя, Страница: 83 / 507

ES User’s Guide 3-31
Making Measurements
Measuring S-Parameters using a Two-Port Calibration
13. Determine the offset delay of the calibration short:
• Press
• Press until the Cal Kit screen is displayed. In the
“CAL KIT: Port 2,” display, find the numeric value for the delay of
the short.
14. Subtract this value from the value calculated in Step 11 . This
corresponds to the delay of the adapter.
15. Remove the short from the adapter.
16. Reselect a type-N(m) calibration kit for port 2. This is necessary
because the type-N(m) short has been removed from the adapter.
Press
, and use the front panel knob or
the keys to highlight Port 2 in the display’s table. Press
.
17. Modify the calibration kit definition of the through-standard by
entering the electrical delay of the adapter. To do so:
• Press
. Enter the delay value with the keypad and softkeys.
18. Save (and automatically assign) the modified cal kit buffer as a
user-defined cal kit for port 2. To do so:
• Press . Use the front panel
knob or the keys to highlight the desired User Kit in
the display’s table. (In this example, highlight Cal Kit A.) Press
.
If you want to enter a cal kit description in the display’s table,
press
. Use a keyboard connected to the
analyzer’s DIN KEYBOARD connector to enter the description.
(If you don’t have a keyboard, you can use the analyzer’s
keys or the front panel knob and the
key to select and enter characters from the top of the analyzer’s
display. Press
when done.)
SYSTEM OPTIONS
Operating Parameters
Next Screen
CAL
More Cal Cal Kit
Type-N(m)
CAL
More Cal Cal Kit Modify Type-N(m) Thru
Delay
Prior Menu Mod Kit SaveRecall
Save
Add Kit Description
Select Char
Enter