758 Keysight N9038A MXE Service Guide
Tests
Intermittent, Unsteady, Drifting Disturbances
17.On the signal generator turn the modulation Off.
18.Changing the frequency on the EMI receiver and the signal generator to
the next value listed in Table 22-71.
19.Change the Pulse Width on the signal generator to the corresponding
value for the Frequency being tested listed in Table 22-71.
20.Repeat steps 11 through 19 for the rest of the frequencies in Table 22-71.
RMS Average Detector Testing
1. Preset the signal generator by pressing Preset.
2. Set the Synthesizer Sweeper as follows:
a. Output: Sine Wave
b. Frequency: 125 kHz
c. Amplitude: -20 dBm
d. Pulse Period: 1.6 seconds
e. Pulse Width: 0.16 seconds
f. Pulse: On
g. RF Output: On
h. Modulation: Off
3. Connect the signal generator output to the EMI receiver RF Input.
4. Preset the EMI receiver by pressing Mode Preset.
5. Tune the EMI receiver to 125 kHz with a span of 0 Hz by pressing FREQ
Channel, Center Freq, 125 kHz then SPAN X Scale, Zero Span.
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).
7. Set the Sweeptime to 3 seconds by pressing Sweep / Control, 3 s.
8. Change the detector used by the EMI receiver to RMS Average by pressing
Trace / Detector, More, Detector, More, RMS Average.
9. Put the EMI receiver in single sweep operation by pressing Single.
10.Turn on the continuous peak function by pressing Peak Search, More,
Continuous Peak Search On.
11.Take a single sweep on the EMI receiver by pressing Restart.
12.Once the sweep on the EMI receiver has completed and the auto peak
value is found record the marker amplitude as the Sine Wave Measured
value for the frequency being measured in Table 22-72.
To Next Page
Loading...
Need help?
General
