Keysight N9038A, Руководство по обслуживанию, Страница: 693 / 745

712 Keysight N9038A MXE Service Guide
Tests
Quasi-Peak Detector Accuracy
Error = Measured - (Power Meter + 106.99)
13. Set the EMI receiver input attenuator to 20 dB by pressing AMPTD Y Scale ,
Attenuation , 20 dB .
14. Setup the IGUU 2916 EMI pulse generator as follows:
a. Main Generator: Band A
b. Pulse Frequency: 25 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 22-28 as the Measured value for the
Band A reference PRF.
20. Calculate the Error with the following formula and enter the value in Table
22-28 .
Error = Measured - 60 dB
μ
V - Error ( Table 22-27 )
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 .
23. Change the Pulse Frequency on the IGUU 2916 EMI pulse generator to
100 Hz .
Table 22-27 Quasi-Peak Sine-Wave Voltage Accuracy Band A - CISPR 16-1-1: 2010 Section 4.3
Sine Wave
Frequency
(kHz)
Band A
Power Meter
(dBm)
Measured (dB
μ
V) Lower Limit
(dB)
Error
(dB)
Upper Limit
(dB)
100
−
2.5 +2.5
Table 22-28 Quasi-Peak Absolute Calibration Band A - CISPR 16-1-1: 2010
Section 4.4.1
Pulse
Frequency
(Hz)
Band A
Measured (dB
μ
V) Lower Limit
(dB)
Error
(dB)
Upper Limit
(dB)
25
−
2.0 +2.0