Keysight N9038A, Service Manual, Page: 728 / 745

Keysight N9038A MXE Service Guide 747
Tests
RMS Average Detector Accuracy
14. Calculate the Error with the following formula and enter the value in Table
22-59 .
Error = Measured – (Power Meter + 106.99)
15. Setup the IGUU 2916 EMI pulse generator as follows:
— Aux. Generator: Band A
— Pulse Frequency: 25 Hz
— Amplitude: 40 dBµV
16. Connect the IGUU 2916 EMI pulse generator Output Auxiliary Generator
Band A/B/C/D to the EMI receiver RF Input.
17. Set the EMI receiver input attenuator to 6 dB by pressing AMPTD Y Scale,
Attenuation, 6 dB .
18. Take a single sweep on the EMI receiver by pressing Restart .
19. Once the sweep has completed find the peak of the detector output by
pressing Peak Search .
20. Record the marker value in Table 22-60 as the Measured value for the
Band A reference PRF.
21. Calculate the Error with the following formula and enter the value in Table
22-60 .
Error = Measured – 40 dBµV + 5.13 dB - Error ( Table 22-59 )
22. Put the marker in Delta mode by pressing Marker, Delta .
23. Turn on the continuous peak function by pressing Peak Search, More,
Continuous Peak Search On .
Table 22-59 RMS Average Sine-Wave Voltage Accuracy Band A – CISPR 16-1-1 :2010 Section 7.4
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 22-60 RMS Average Amplitude Relationship Band A – CISPR 16-1-1 :2010 Section 7.5.2
Pulse Frequency
(Hz)
Band A
Measured
(dBµV)
Lower Limit
(dB)
Error
(dB)
Upper Limit
(dB)
25 -2.0 +2.0