Keysight N9038A, Service Manual, Page: 717 / 745

736 Keysight N9038A MXE Service Guide
Tests
EMI Average Detector Accuracy
Error = Measured – (Power Meter + 106.99)
13. Setup the IGUU 2916 EMI pulse generator as follows:
a. Aux. Generator: Band A
b. Pulse Frequency: 25 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 6 dB by pressing AMPTD Y Scale,
Attenuation, 6 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 22-48 as the Measured value for the
Band A reference PRF.
20. Calculate the Error with the following formula and enter the value in Table
22-48 .
Error = Measured – 40 dBµV + 12.36 dB - Error ( Table 22-47 )
21. Put the marker in Delta mode by pressing Marker, Delta .
22. Turn on the continuous peak function by pressing Peak Search, More,
Continuous Peak Search On .
Table 22-47 EMI Average Sine-Wave Voltage Accuracy Band A – CISPR 16-1-1 :2010 Section 6.4
Sine Wave
Frequency
(kHz)
Band A
Power Meter
(dBm)
Measured
(dBµV)
Lower Limit
(dB)
Error
(dB)
Upper Limit
(dB)
100 -2.5 +2.5
Table 22-48 EMI Average Amplitude Relationship Band A – CISPR 16-1-1 :2010 Section 6.5.2
Pulse Frequency
(Hz)
Band A
Measured
(dBµV)
Lower Limit
(dB)
Error
(dB)
Upper Limit
(dB)
25 -2.0 +2.0