SDI7 module adjustment procedures
6. Record the Cycl
e RMS and Cycle Mean values in the SDI output amplitude
table.
7. Calculate the
corrected RMS amplitude of the sine
wave:
8. Record the result in the test record.
9. Calculate the total attenuation factor for the system. This is the DMM
measurement divided by the corrected RMS sine wave amplitude. This
attenuation factor will be used after measuring the signal outputs in the next
test.
10. Record the attenuation factor value in the SDI output amplitude table.
11. Enter the attenuation factor value into the oscilloscope:
a. On the oscilloscope, press the SETUP DIALOG button.
b. Select the “V
ert” tab from the top of the setup page.
c. Select the “External Attenuation” box, and then enter the attenuation
factor calc
ulated in step 9 above.
TG8000 Multiformat Test Signal Generator Service Manual 14–5
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