Stanford Research Systems SR810 Manual page 120

Performance Tests
[Freq]
Use the knob to set the internal oscillator frequency to the value in the table.
e) Wait for the R reading to stabilize. Record the value of R.
f) Repeat steps 4d and 4e for all of the frequencies listed.
5) This completes the sine output amplitude accuracy and frequency response test. Enter the results of
this test in the test record at the end of this section.
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