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Measuring Waveforms
TDS 500C, TDS 600B, & TDS 700C User Manual
3–149
Figure 3–70: Re-use Probe Calibration Data Menu
NOTE. If the Re-use Probe Calibration data menu is displayed, do not select OK
Use Existing Data if the probe currently installed is not of the same impedance
stored for the Probe Cal. For example, if the last Probe Cal stored for a channel
was done with a passive 50 W probe installed, do not install a passive 1 MW
probe and select OK Use Existing Data if the menu appears. If you do so, most
of any signal you attempt to measure will not be coupled to the input channel
because of the probe to oscilloscope impedance mismatch.
Table 3–13 shows the action the oscilloscope takes based on the probe connected
and user operation performed.