Keysight N9038A, Service Manual, Page: 694 / 745

Keysight N9038A MXE Service Guide 713
Tests
Quasi-Peak Detector Accuracy
24. Take a single sweep on the EMI receiver by pressing Restart .
25. 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 being measured in Table 22-29 .
26. Without changing any other setting on the EMI receiver or the IGUU 2916
EMI pulse generator change the Pulse Frequency on the pulse generator
to the other values in the Table 22-29 and repeat step 24 and step 25 for
each.
Band B Testing
1. Set the IGUU 2916 EMI pulse generator to output a 10 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 10 MHz with a span of 0 Hz by pressing FREQ
Channel , Center Freq , 10 MHz then SPAN X Scale , Zero Span .
5. Set the Sweeptime to 2 seconds by pressing Sweep / Control , 2 s .
6. Set the RF Coupling to DC by pressing Input / Output , RF Input , RF
Coupling DC (instruments with Option 544 are always DC coupled so this
step is skipped for them.)
Table 22-29 Quasi-Peak Relative Response Band A - CISPR 16-1-1: 2010 Section 4.4.2
Pulse Frequency
(Hz)
Band A
Lower Limit
(dB)
Measured
(dB)
Upper Limit
(dB)
100 2.5 5.5
60 1.5 4.5
25 0 Reference 0
10 − 5.5 − 2.5
5 − 9.0 − 6.0
2 − 15.5 − 10.5
1 − 19.5 − 14.5
Isolated (0.1 Hz)
a
− 21.5 − 16.5
a. Due to the slow pulse rate you may need to take multiple sweeps to capture a complete
pulse.