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
48
1 MHz
1.22 Vrms
CAL:SET 48
49
5 MHz
CAL:SET 49
50
10 MHz
CAL:SET 50
51
20 MHz
CAL:SET 51
52
25 MHz
CAL:SET 52
53
30 MHz
CAL:SET 53
[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
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.
This completes the adjustment procedures for the one-channel instrument. Verification of the output specifications
is recommended.
If you are making adjustment to a two-channel instrument, continue with the next procedure in this section
38
Keysight EDU33210 Series Service Guide
