Appendix B: Performance Verification
B–14
TDS 340A, TDS 360 & TDS 380 User Manual
25. Repeat steps 14 and 15 for the external trigger.
26. Disconnect the test hookup.
Trigger level accuracy is verified by the successful completion of the Self Tests
and the DC voltage measurement accuracy procedure on page B–5.
This completes the performance verification procedure.
Sine Wave Generator Leveling Procedure
Some procedures in this manual require a sine wave generator to produce the
necessary test signals. If you do not have a leveled sine wave generator, use the
following procedure to level the output amplitude of your sine wave generator
using a power meter.
Equipment Required: Sine wave generator, level meter and power sensor,
power splitter, and one precision coaxial cable.
Time Required: About 5 minutes.
Prerequisites:
See page B–5.
Procedure:
1. Connect the equipment as shown in Figure B–8.
2. Set the sine wave generator to a reference frequency of 50 kHz.
3. Adjust the sine wave generator amplitude to the required number of
divisions as measured by the oscilloscope.
4. Note the reading on the level meter.
5. Change the sine wave generator to the desired new frequency.
6. Input the correction factor for the new frequency into the level meter.
7. Adjust the sine wave generator amplitude until the level meter again reads
the value noted in step 4. The signal amplitude is now correctly set for the
new frequency.
Trigger Level Accuracy,
DC Coupled
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