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When a power-offset table is selected ON, the mes
-
sage
USER 1...5 is displayed on all menu displays
to remind you that a user level flatness correction
has been applied to the ALC.
To turn off the selected power-offset table and re
-
move user level flatness correction from the test
setup, press On/Off [LU0] again. The User Level
Cal menu will display: 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 MG369XB GPIB Programming Manual
(P/N: 10370-10366) for information and instructions
on creating a power-offset table and entering it via
the GPIB.
Erasing the Power-Offset Tables from Memory
The power-offset tables are stored in non-volatile
memory. A master reset is required to erase the con-
tents of the tables and reprogram them with default
data.
To perform a master reset, proceed as follows:
Step 1. With the MG369XB in standby, press and
hold the RF OUTPUT ON/OFF key.
Step 2. Press the LINE OPERATE/STANDBY key
to turn the instrument on.
Step 3. When the first menu is displayed (after
the start-up display), release the RF OUT
-
PUT ON/OFF key.
For instruments without a front panel, a master re
-
set can be performed at power on by grounding
pin 21 of the rear panel AUX I/O connector.
The contents of non-volatile memory have now been
erased and reprogrammed with default data.
MG369XB OM 3-75
Local (Front Panel) Operation Leveling Operations
NOTE
The master reset function
overwrites all information stored in
the non-volatile memory with de
-
fault values. This includes the nine
stored front panel setups and the
table of 2000 frequency/power level
sets used for list sweep mode.