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Step 13. The next menu, C19, gives you choices for your re
-
flective device.
a.
Move the cursor to REFLECTION OFFSET
LENGTH and key in a value (typically
0.0000 mm).
b.
Move the cursor to GREATER THAN Z
0
or
LESS THAN Z
0
, depending on whether your re
-
flective device is an Open or a Short. Press the
Enter key to select.
NOTE
Choose GREATER THAN Z
0
for an Open
and LESS THAN Z
0
for a Short.
c. When you complete your choices, move the cur
-
sor to NEXT CAL STEP and press the Enter
key.
Step 14.
When menu C3G reappears, move cursor to START
CAL and press Enter.
Step 15. Continue the calibration sequence by following the
prompts as they appear. Mount the appropriate LRL
line substrates when requested in the calibration se-
quence.
For the REFLECTIVE DEVICE and BROAD
-
BAND LOAD prompts, remove all substrates from
the UTF and allow the lower jaws to short the cen
-
ter conductor. Separate the connector blocks by at
least an inch. (The BROADBAND LOAD prompt
only appears if you selected to include isolation in
menu C5B.)
Step 16. Store the calibration.
37xxxE OM 7-43
MEASUREMENT CALIBRATION LRL/LRM CALIBRATION
MENU C19
CHANGE LRL/LRM
PARAMETERS
NEXT CAL STEP
REFLECTION
OFFSET LENGTH
+XXX.XXXX mm
REFLECTION TYPE
GREATER THAN Zo
LESS THAN Zo
MATCH PARAMETERS
MATCH IMPEDANCE
+
XXX.XXX W
MATCH INDUCTANCE
+XXXX.XXXX pH
PRESS <ENTER>
TO SELECT
MENU C3G
CONFIRM
CALIBRATION
PARAMETERS
CHANGE
LRL/LRM
PARAMETERS
CHANGE
MICROSTRIP
PARAMETERS
XXXXXXXXX
START CAL
PRESS <ENTER>
TO SELECT