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Calibration Tests and Adjustment
Attenuator Adapter Adjustment
11 Connect the adapter/probe combination to the test board in the position shown
in the figure below (signal to both inputs).
Figure 2-25
Signal to both input
12 Alternately adjust the LF CMRR and then the -HF RESP for a minimum signal
on the oscilloscope. Repeat the adjustments until the signal is optimized to a
minimum. Each adjustment should be set to minimize the component of the
signal it affects most. Some high-frequency components of the signal are not
affected by either adjustment.