range is 2 to 801.) When you have finished setting
the open number-of-points parameter, close it by
pressing
Edit Points
again or by making another
menu selection.
Now, press
Start Cal
to begin automatically taking
power level correction information at each fre-
quency point. During this process the menu dis-
plays the status:
Calibrating
along with the current
measurement frequency point.
NOTE
To terminate 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.
To activate 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.
To turn 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 Table via 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 680XXB Programming Manual (P/N 10370-
10266) for information and instructions on creating
a power-offset table and entering it via the GPIB.
LOCAL (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
remind the operator that user level
flatness correction has been applied
to the ALC.
680XXB OM
3-59
Summary of Contents for 680 B Series
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