Keysight Technologies EDU33210 Series Service Manual page 21

6. Record down both multimeter and power meter measured value.
7. Convert the multimeter measurement in Vrms to dBm using equation below:
dBm = 10 × log (20 × Vrms
10
8. Calculate the crossover measurement error across both measurement instrument.
Crossover @100 kHz (dB) = Power meter measured value in dBm – Multimeter converted value in dBm
9. Compare the measured value to the test limits shown in the table by using formula below:
Flatness error @100 kHz (dB) = Multimeter converted value in dBm (Step 7) – 1 kHz reference point (Step 4)
10. Set the instrument to each of the output described in the table below and measure the amplitude by using
power meter and power sensor.
Waveform Generator
Output Load Function
50 Ω Sine
50 Ω Sine
11. Record down the power meter measured value.
12. Each result measured under Step 10 are required to be corrected by crossover error and 1 kHz reference point
error. Use equation below.
Flatness error above 100 kHz (dB) = Power meter measured value in dBm (Step 11) – Crossover @100 kHz
(Step 8) - 1 kHz reference point (Step 4)
13. Compare the measured value to the test limits shown in the table.
14. For EDU33212A only. Connect multimeter to channel 2 output and repeat steps 2 through 13.
Keysight EDU33210 Series Service Guide
2
)
Amplitude Frequency
1.200 Vrms 500.0 kHz
1.000 MHz
2.000 MHz
5.000 MHz
1.200 Vrms 10.00 MHz
15.00 MHz
20.00 MHz
Measurement
Nominal Error
0 dB ±0.15 dB
0 dB ±0.30 dB
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