NOTE
This concludes power level testing for
series 690XXB CW generators. For series
691XXB signal generators, continue on to
step 4 to test power level flatness in the
analog sweep mode.
3. Set up the 691XXB as follows for an analog 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 691XXB in the ana-
log sweep frequency mode and display the
Analog Sweep Menu.
c. With the Analog Sweep Menu displayed, press
the main menu key
FREQUENCY
CONTROL
The Sweep Frequency Control Menu is then
displayed.
d. Press
Full
to select a full range frequency
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 rec-
ord.
g. Now, return to the Analog Sweep Menu by
pressing the main menu key
CW/SWEEP
SELECT
h. At the Analog Sweep Menu, press the menu
soft-key
Sweep Ramp
to go to the Analog
Sweep Ramp Menu.
i. At this menu, press
Sweep Time
to open the
sweep time parameter for editing.
j. Set the sweep time to 99 seconds.
4. During the analog sweep, measure the maximum
and minimum Power Meter readings and record
the values on the Test Record. Verify that the
variation (difference between the maximum and
minimum readings) does not exceed the value
noted on the Test Record.
690XXB/691XXB MM
3-27
PERFORMANCE
POWER LEVEL ACCURACY
VERIFICATION
AND FLATNESS TESTS
Summary of Contents for 680 C Series
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