Figure 6 shows a high-impedance 10x probe where the input impedance is 9MΩ, the input impedance inside the oscilloscope is 1MΩ, and the total input impedance is 10MΩ. For 10x probes, the signal has 10x attenuation via impedance matching, and the higher attenuation ratio reduces the signal-to-noise ratio. Because the ripple is a small signal, it is better suited a 1x probe without impedance matching because the signal is not distorted.