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Edited by WisdomAugust at 2016-5-13 16:15
Standard oscilloscope probes have a BNC connection to the oscilloscope and a probe with interchageable testing tips and a ground strap with a crocodile clip. These probes could have a switch to change the attenuation to X1 or X10. Some probes have only a single attenuation i.e. X100 and can go up to X10000 for extra high voltage testing. However some oscilloscopes should not be used for measuring extra high voltages, as it is not designed to do that from a point of safety. Theoretically it may work, but is not recommended.
When setting the CH1 probe attenuation switch say to X10, then the same setting, X10, must be selected in the attenuation drop down box or menu. This is necessary as some oscilloscope cannot determine whether it is reading an attenuated signal or a straight signal.
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