Page 3
How to Use Probe Calibration Leave black clip Connect red clip to Because there is always some capacitance between scope input and un-connected test signal output Display and Controls ground probe needs to be calibrated to achieve better measurement results for high frequency signals. This can be done with the help of the built-in test signal.
Need help?
Do you have a question about the DSO 138 and is the answer not in the manual?
Questions and answers