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SNR Triple Track Measurement
Overview
This section describes the SNR Triple Track Measurement. This measurement allows you
to evaluate the characteristics of head offset versus TAA.
Measurement
1. Set the input range using the auto configuration, or set the input range manually.
Procedure
2. Click [Triple Track Test] button in Measure Menu (see Figure 3-69 on page 126).
3. Click [SNR Triple Track Test] button to open the SNR Triple Track Test menu (see
Figure 3-70 on page 126).
4. In the SNR Triple Track Test menu, set [Program Read Offset], [Auto TAA Range],
and [Sector Normalize] check boxes (see Figure 3-78).
Figure 3-78
SNR Triple Track Test Parameter Setup Buttons and Check Boxes
Program Read Offset
Auto TAA Range
Sector Normalize
Chapter 3
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VEE Measurement Program Operation
(check box)
Specifies the auto setting of the read-write
offset after the SNR track profile is measured.
If checked the write offset and read offset of
the [Setup] menu will be changed and updated
automatically and this will be used in
subsequent tests. The write offset is set to zero
while the read offset is set to the read-write
offset "RW Offs" value of this measurement.
(check box)
Specifies the TAA range to auto mode. If
checked, it will eliminate an overflow in TAA
measurement. The input range automatically
adjusts itself to an appropriate range when an
overflow occurs. See
"hpe5022_isolatedPulseReferenceTaa Auto"
of the programming manual for details.
(check box)
Specifies the sector normalization. If checked,
sector normalization will be performed.
Measurement
133
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