range is 2 to 801.) When you have finished setting
the open number-of-points parameter,close it by
pressing Edit Points or by making another menu
selection.
Now,press Start Cal to begin automatically taking
power level correction information at each frequency
point. During this process the menu displays the
status: Calibrating along with the current measure-
ment frequency point.
NOTE
Toterminate the measurement process at
any time before completion, press Abort .
Once the power-offset table has been created, it is
stored in non-volatile memory.The power-offset ta-
ble is now ready to be applied to the test setup. Dis-
connect the Power Sensor and Power Meter from the
test setup.
Applying User Level Flatness Correction
Whenever user level flatness correction is applied to
the test setup by activating the power-offset table,
the set power level is delivered at the point where
the calibration was performed.
Toactivate the selected power-offset table and apply
user level flatness correction to the test setup, press
On/Off . The User Level Cal menu will display the
status: On.
Toturn off the selected power-offset table and re-
move user level flatness correction from the test
setup, press On/Off again. The User Level Cal
menu will display the status: Off.
Entering a Power-Offset Tablevia GPIB
User level flatness correction can be applied to the
test setup using a power-offset table created from
calculated data and entered via the GPIB. Refer to
the 681XXC Programming Manual (P/N 10370-
10334) for information and instructions on creating
a power-offset table and entering it via the GPIB.
681XXC OM 3-71LOCAL (FRONT LEVELING
PANEL) OPERATION OPERATIONS
USER 1...5
When a power-offset table is se-
lected ON, this status message is
displayed on all menu displays to
remindthe operator that user level
flatnesscorrection has been applied
to the ALC.