Keysight N9038A, Service Manual, Page: 695 / 745

714 Keysight N9038A MXE Service Guide
Tests
Quasi-Peak Detector Accuracy
7. Set the amplitude units to dB
μ
V by pressing AMPTD Y Scale , More , Y Axis
Unit , More , dB μ V .
8. Set the reference level to 80 dB μ V by pressing AMPTD Y Scale , 80 dB μ V .
9. Change the detector used by the EMI receiver to Quasi-Peak by pressing
Trace / Detector , More , Detector , More , Quasi Peak .
10. Turn on the marker by pressing Marker .
11. Record the marker value in Table 22-30 as the Measured value for Band B.
12. Calculate the Error with the following formula and enter the value in Table
22-30
Error = Measured - (Power Meter + 106.99)
13. Set the EMI receiver input attenuator to 18 dB by pressing AMPTD Y Scale ,
Attenuation , 18 dB .
14. Setup the IGUU 2916 EMI pulse generator as follows:
a. Main Generator: Band B
b. Pulse Frequency: 100 Hz
c. Amplitude: 60 dB
μ
V
15. Connect the IGUU 2916 EMI pulse generator Output Main Generator Band
A/B to the EMI receiver RF Input.
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 22-31 as the Measured value for the
Band B reference PRF.
20. Calculate the Error with the following formula and enter the value in Table
22-31 .
Table 22-30 Quasi-Peak Sine-Wave Voltage Accuracy Band B - CISPR 16-1-1: 2010 Section 4.3
Sine Wave
Frequency
(MHz)
Band B
Power Meter
(dBm)
Measured (dB μ V) Lower Limit
(dB)
Error
(dB)
Upper Limit
(dB)
10 − 2.5 +2.5