246 Keysight B2980B User’s Guide, Edition 1
Function Details
Real-time Noise Monitor
The following figures show examples of the real-time noise monitor.
Figure 5-13 Example 1
Figure 5-13 shows current noise level when the SPEED (aperture time) of the
current measurement is set to 1.0PLC. You can find the following from this graph.
• If the aperture time is less than 1.0PLC, it is not suitable for the current
measurement.
• If the aperture time is greater than or equal to 1.0PLC, it reduces current noise
level.
Figure 5-14 Example 2
Figure 5-14 shows current noise level when a DUT is connected using shielded
wires. You can find that the shielded wires reduce current noise level.
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