5-6
POWER LEVEL
ACCURACY AND
FLATNESS TESTS
These tests verify that the power level accuracy and flatness of the
681XXB meet specifications. Table 5-3, beginning on page 5-17, con-
tains test records that you can copy and use to record test results for
these tests. Test records are provided for each 681XXB model configura-
tion.
Test Setup
Connect the equipment, shown in Figure 5-2, as fol-
lows:
Step 1
Calibrate the Power Meter with the
Power Sensor.
Step 2
Connect the Power Sensor to the
RF OUT-
PUT
of the 681XXB.
Step 3
Connect the 681XXB rear panel
HORIZ
OUT
to the Oscilloscope CH.1 input (X in-
put).
NOTE
Before starting these procedures,
locate the test record in Table 5-3 for
the particular 681XXB model con-
figuration being tested.
RF
OUT
HORIZ
OUT
681XXB SWEEP GENERATOR
OSCILLOSCOPE
Power
Sensor
POWER METER
CH 1 or X Input
Figure 5-2.
Equipment Setup for Power Level Accuracy and Flatness Tests
OPERATION
POWER LEVEL ACCURACY
VERIFICATION
AND FLATNESS TESTS
681XXB OM
5-11