Keysight N9038A, Service Manual

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738 Keysight N9038A MXE Service Guide
Tests
EMI Average Detector Accuracy
9. Change the detector used by the EMI receiver to EMI Average by pressing
Trace / Detector, More, Detector, More, EMI Average .
10. Turn on the marker by pressing Marker .
11. Record the marker value in Table 22-50 as the Measured value for Band B.
12. Calculate the Error with the following formula and enter the value in Table
22-50 .
Error = Measured – (Power Meter + 106.99)
13. Setup the IGUU 2916 EMI pulse generator as follows:
a. Aux. Generator: Band B
b. Pulse Frequency: 500 Hz
c. Amplitude: 40 dBµV
14. Connect the IGUU 2916 EMI pulse generator Output Auxiliary Generator
Band A/B/C/D to the EMI receiver RF Input.
15. Set the EMI receiver input attenuator to 10 dB by pressing AMPTD Y Scale,
Attenuation, 10 dB .
16. Put the EMI receiver in single sweep operation by pressing Single .
17. Take a single sweep on the EMI receiver by pressing Restart .
18. Once the sweep has completed find the peak of the detector output by
pressing Peak Search .
19. Record the marker value in Table 22-51 as the Measured value for the
Band B reference PRF.
20. Calculate the Error with the following formula and enter the value in Table
22-51 .
Table 22-50 EMI Average Sine-Wave Voltage Accuracy Band B – CISPR 16-1-1 :2010 Section 6.4
Sine Wave
Frequency
(MHz)
Band B
Power Meter
(dBm)
Measured
(dBµV)
Lower Limit
(dB)
Error
(dB)
Upper Limit
(dB)
10 -2.5 +2.5