Service manual

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Performance Test
Performance Test
2. Performance Test
Figure 2-5 OSC Level Accuracy Test Setup 3
27. Set the 4294A as follows.
Setting Operation
Center Frequency: 1 MHz [Center] - [1] - [M/m]
OSC Level: 0.75 V [Source] - LEVEL - [.] - [7] - [5] - [×1]
NOTE The OSC level must be set to 0.75V because a impedance mismatch occurs between the
4294A and the power sensor.
28. Press [Trigger] - Single for a single sweep measurement:
29. Record the following values according to the calculation sheet.
a. OSC level monitor reading
b. Power meter reading
c. OSC level calculated from the power meter reading.
d. OSC level monitor accuracy.
30. Confirm that the monitor accuracy is within the monitor accuracy limit.
NOTE If the monitor accuracy is beyond the limit, OSC Level Test fails.