Power Level
Flatness Test
Procedure
Power level flatness is checked by measuring the
power level variation during a full band sweep; first
in the step sweep mode, then in the analog sweep
mode.
Step 1
Set up the 681XXB as follows for a step
sweep power level flatness test:
a. Reset the instrument by pressing
SYSTEM
, then
Reset
. The CW
Menu is displayed.
b. Press
Step
to place the 681XXB in
the step sweep frequency mode and dis-
play the Step Sweep Menu (below).
c. With the Step Sweep menu displayed,
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.
OPERATION
POWER LEVEL ACCURACY
VERIFICATION
AND FLATNESS TESTS
681XXB OM
5-15
