300
Chapter 5
Measurement Definition
Parametric Sweep Measurement Definitions
Figure 5-50
OTRC (Unsqueezed OTRC) Evaluation
d. Calculate “Squeezed OTRC” value from “Squeezed SNR[ ]” profile (see Figure
5-51).
Figure 5-51
Squeezed OTRC Evaluation
9. “WW,” “RW,” “RW Offset,” and “Squash” Evaluation
a. For the “Normalized OTRC Signal,” specify the interpolation range which includes
the threshold and window size settings. Refer to Figure 3-80, “Best Fit Window,”
on page 135 for details.
b. Calculate the distance between the interpolation lines at 50% threshold and denote
the measured distance as the “Write Track Width (WW).”
c. Calculate the distance between the interpolation lines at 0% threshold (i.e., floor
level). Subtract the write track width from this result and denote the new width as
the “Read Track Width (RW).”
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