For the PXIe-5172, self-calibration yields the following benefits:
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Characterizes onboard Sample Clock phase adjustment circuitry.
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Characterizes onboard intermodule synchronization measurement circuitry
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Corrects for DC gain and offset errors within the oscilloscope by comparison to a precision, high-stability internal voltage reference. This is done for all ranges and both input impedance paths.
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Takes approximately 1 minute to complete.