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Step 12. Press the Begin Cal key again.
Step 13. Follow the menu prompts; again choose to perform a
full 12-term calibration. Now use the Adapter’s Type
N male connector (X’) as Test Port 2. Use the VNA’s
Test Port 1 connector as Test Port X.
Step 14. Save the calibration as described in Steps 7 and 8,
above. Give this file a unique filename, such as
X_XPRIME.CAL. (Store this file in the current direc
-
tory.)
Step 15.
Press the Appl key and chose ADAPTER RE
-
MOVAL to return to Menu CAR1 (top left).
Step 16. Enter the electrical length of the Adapter (170 ps for
the test adapter) in the appropriate place in Menu
CAR1.
NOTE
Electrical length does not have to be precise.
Plus or minus 5 ps is adequate for this pro-
cedure.
Step 17.
Move the cursor to REMOVE ADAPTER, and press
the Enter key.
Step 18.
Move the cursor to the appropriate READ CAL
FILE OF THE X TEST PORT . . . , depending on
where the calibration data is stored (SD Card or
USB drive). Press the Enter key.
NOTE
At this juncture, the “X” calibration file is
marked for reading, but not actually read.
Both the “X” and “Y” files will be read into
the VNA together in the next step.
37xxxE OM 8-37
MEASUREMENTS ADAPTER REMOVAL
MENU CAR1
ADAPTER REMOVAL
12-TERM CALS FOR
X AND Y
MUST EXIST IN THE
CURRENT DIREC
-
TORY
ELECTRICAL LENGTH
OF THE ADAPTER
+170.0000 ps
REMOVE ADAPTER
HELP
PRESS <ENTER>
TO SELECT
MENU CAR2
ADAPTER REMOVAL
READ CAL FILE OF
THE X TEST PORT
FROM SD CARD
(ADAPTER ON
PORT 2)
READ CAL FILE OF
THE X TEST PORT
FROM USB DRIVE
(ADAPTER ON
PORT 2)
PRESS <ENTER>
TO SELECT
PRESS <CLEAR>
TO ABORT