g. Now,return to the Step Sweep menu
by pressing the main menu key
CW/SWEEP
SELECT
h. At the Step Sweep menu, press
Sweep Ramp to go to the Step Sweep
Ramp Menu (below).
i. Press Dwell Time to open the dwell
time-per-step parameter for editing.
j. Set the dwell time to 1 second.
NOTE
Monitor the 681XXC’s Horizontal
Output on the Oscilloscope to de-
termine sweep start and stop.
Step 2 As the 681XXC steps through the full fre-
quency range, measure the maximum and
minimum Power Meter readings and rec-
ord 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 rec-
ord.
5-16 681XXC OMOPERATION POWER LEVEL ACCURACY
VERIFICATION AND FLATNESS TESTS