Step 3 Set up the 681XXC as follows for an ana-
log sweep power level flatness test:
a. Reset the instrument by pressing
SYSTEM , then Reset . The CW
Menu is displayed.
b. Press Analog to place the 681XXC in
the analog sweep frequency mode and
display the Analog Sweep Menu.
c. Withthe Analog Sweep menu dis-
played, press the main menu key
FREQUENCY
CONTROL
The Sweep Frequency Control Menu
(below) is displayed.
d. Press Full to select a full range fre-
quency sweep.
e. Press Edit L1 to open the current
power level parameter for editing.
f. Set L1 to the power level noted on the
test record.
g. Now,return to the Analog Sweep
menu by pressing the main menu key
CW/SWEEP
SELECT
681XXC OM 5-17
OPERATION POWER LEVEL ACCURACY
VERIFICATION AND FLATNESS TESTS