UNI-T UTS3000B/A Series User Manual page 31

Note
Increase attenuation value to make ground noise close to signal level.
7. Reduce attenuation to 0dB to observe signal more clearly:
Press [AMPT]>Attenuation>0>dB
Figure 3-12 Measuring Small Signal with 0dB Attenuation
Reduce Resolution Bandwidth
Resolution bandwidth will affect internal noise level, however, waveform continuous signal will not affect
by resolution bandwidth. Reduce resolution bandwidth to 10 times, ground noise will decrease 10dB
accordingly.
1. Refer to "Reduce Input Loss" in this section and follow the steps to perform it.
2. Reduce the resolution bandwidth:
Press [BW] to select the resolution bandwidth
Figure 3-11 A Signal Close to Ground Noise
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