Performance Tests
4-56
TDS 420A, TDS 430A & TDS 460A Service Manual
Equipment
Required
Sine Wave Generator (Item 11)
Level Meter and Power Sensor (Item 12)
Power Splitter (Item 13)
Two Male N to Female BNC Adapters (Item 15)
One precision coaxial cable (Item 5)
Prerequisites See page 4--15.
Sine Wave
Generator
Digitizing Oscilloscope
Level
Meter
Power
Sensor
Power
Splitter
Attenuators
(if necessary)
Input
Output
Figure 4- 23: Sine Wave Generator Leveling Equipment Setup
1. Install the test hookup: Connect the equipment as shown in Figure 4--23.
2. Set the Generator:
H Set the sine wave generator to a reference frequency of 10 MHz.
H Adjust the sine wave generator amplitude to the required number of
divisions as measured by the digitizing oscilloscope.
3. Record the reference level: Note the reading on the level meter.
4. Set the generator to the new frequency and r eference level:
H Change the sine wave generator to the desired new frequency .
Procedure for Best
Accuracy
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