Keysight N9038A, Service Manual

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716 Keysight N9038A MXE Service Guide
Tests
Quasi-Peak Detector Accuracy
27. Setup the IGUU 2916 EMI pulse generator as follows:
a. Aux. Generator: Band B
b. Pulse Frequency: 100 Hz
c. Amplitude: 40 dB μ V
28. Move the cable on the IGUU 2916 EMI pulse generator to Output Auxiliary
Generator Band A/B/C/D.
29. Change the EMI receiver input attenuation to 10 dB by pressing AMPTD Y
Scale , Attenuation , 10 dB .
30. Take a single sweep on the EMI receiver by pressing Restart .
31. Reset the delta marker by pressing Marker , Delta .
32. Change the Pulse Frequency on the IGUU 2916 EMI pulse generator to
1000 Hz .
33. Take a single sweep on the EMI receiver by pressing Restart .
34. Once the sweep on the EMI receiver has completed and the auto peak
value is found record the marker delta amplitude value for the pulse
frequency of 1000 Hz in Table 22-32 .
Band C Testing
1. Set the IGUU 2916 EMI pulse generator to output a 100 MHz Sine Wave
signal.
2. Connect the IGUU 2916 EMI pulse generator Output Sine Wave Generator
to the EMI receiver RF Input.
3. Preset the EMI receiver by pressing Mode Preset .
4. Tune the receiver to 100 MHz with a span of 0 Hz by pressing FREQ
Channel , Center Freq , 100 MHz then SPAN X Scale , Zero Span .
5. Set the Sweeptime to 2 seconds by pressing Sweep / Control , 2 s .
6. Set the amplitude units to dB
μ
V by pressing AMPTD Y Scale , More , Y Axis
Unit , More , dB μ V .
7. Set the reference level to 80 dB μ V by pressing AMPTD Y Scale , 80 dB μ V .
8. Change the detector used by the EMI receiver to Quasi-Peak by pressing
Trace / Detector , More , Detector , More , Quasi Peak .
9. Turn on the marker by pressing Marker .
10. Record the marker value in Table 22-33 as the Measured value for Band C.
11. Calculate the Error with the following formula and enter the value in Table
22-33