Tektronix Tektronix SPG8000, Техническое описание

Страница: 113 / 118

Performance veri fi cation
Part B: Characterization of the test system.
7. Connect the equipment as follows:
a. AFG3101 output to 1 m high bandwidth cable.
b. The other end of the cable to a TCA-75.
c. The TCA-75 to the 80A03 in the oscilloscope and plug-in.
d. A 50 Ω cable from the AFG3101 trigger output.
e. The other end of the 50 Ω cable to the BNC to SMA adapter.
f. The SMA adapter to the 6 dB pad.
g. The 6 dB pad to the trigger direct input on the oscilloscope.
Figure 28: Setup for characterization of the test system
8. Keep the AFG3101 at the same output as in Part A of this test.
9. Set the oscilloscope to a horizontal scale of 20 μ s.
10. Set the oscilloscope to a vertical scale of 50 mV.
11. Set the oscilloscope to averaging 16 and set the record length to 4000 points.
12. On the oscilloscope, select measurement 1 and then pulse amplitude and
select it to measure Cycle RMS.
13. On the oscilloscope, select measurement 2 and then pulse amplitude and
select it to measure Cycle Mean.
14. Record the Cycle RMS and Cycle Mean values in the test record.
SPG8000 Speci fi cations and Performance Veri fi cation 99