Keysight Technologies EDU33210 Series, Service Manual

Page: 48 / 49

8. Enter the value measured by multimeter (Step 4) using SCPI command.
9. Calculate the crossover point at 100 kHz by using below formula:
Crossover @100 kHz = Power meter converted value in Vrms (Step 7) – Multimeter measured value in Vrms
(Step 4)
10. Using the existing connection, configure the instrument and measure the output for each setup in the following
table.
Setup Frequency Amplitude SCPI command
87
[a]
1 MHz 0.192 Vrms CAL:SET 87
88
[a]
5 MHz CAL:SET 88
89
[a]
10 MHz CAL:SET 89
90
[a]
20 MHz CAL:SET 90
91
[a]
25 MHz CAL:SET 91
92
[a]
30 MHz CAL:SET 92
[a] Constants are stored after completing this setup.
11. Convert the measured power level from dBm to Vrms.
12. Enter the value measured (calibration value) using SCPI command.
Calibration Value = Power meter converted value in Vrms – Crossover @100 kHz in Vrms (Step 9)
13. To proceed:
a. If your calibration procedures require you to verify this adjustment, exit the calibration menu and perform -
24 dB range flatness verification .
b. If you are making all of the adjustments and then verifying the instrument’s performance, verify the output
specifications of the instrument with the Performance Verification Test .
48 Keysight EDU33210 Series Service Guide