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SIGLENT
User Manual 51
2.4.1.7 Spectrum Monitor
Display the power of the swept spectrum as an intensity color map commonly referred to as a waterfall
chart. Select Spectrum Monitor and press Meas Setup to set the corresponding parameters.
2.4.1.8 CNR
Measure the power of the carrier and noise of the specified bandwidth and their ratio. Select CNR and
press Meas Setup to set the corresponding parameters.
2.4.1.9 Harmonics
The harmonic power and total harmonic distortion of carrier signal are measured. The maximum
measurable harmonic is 10th harmonic. The fundamental wave amplitude of carrier signal must be
greater than - 50 dBm, otherwise the measurement result is invalid. Select Harmonics and press Meas
Setup to set the corresponding parameters.
2.4.1.10 Meas Off
Turn off all the Meas functions.
2.4.2 Meas setup
2.4.2.1 Reflection
Figure 2-13 Reflection measurement
Return Loss、Refi Coefficient、VSWR:
● Return Loss：Ratio of incident power to reflected power
● Refi Coefficient：Ratio of reflected to incident voltage.
● VSWR：Ratio of standing wave belly voltage to valley voltage amplitude.
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