Appendix A
361
Manual Changes
Changes in Revision A.04.00 from Revision A.03.81.04
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Changes in Revision A.04.00 from Revision A.03.81.04
1. Supports the following Head Amplifier for an Amplifier on Cassette.
•
E5029J Opt.607 E5022-66607/E5022-66608 SR1760
2. Supports the following new modules.
•
E5037B 1Gbps Data Generator Module
•
E5040A Spectrum Measurement Module
3. Discontinued the Codeword Protection for Oscilloscope Option
The codeword is no longer required during the system software installation.
4. The calculation methods of squeeze profile and squeeze OTRC in the triple track
profile test have been changed.
E5022A/B employs the following method in order to measure a Squeeze OTRC.
a. Measure one track profile.
b. Plot the imaginary track profiles at both side of the measured track profile.
In other words, the both side of track profiles are copies of the measured track
profile.
c. Calculate Squeeze OTRC by two imaginary track profiles.
The following things have been changed in the calculation of Squeeze OTRC and
plotting imaginary track profiles.
•
Squeeze OTRC
On revision A.3.81.04 and below, the squeeze OTRC is calculated from the
rounded imaginary track profile. On the other hand, on revision A.04.00 and above,
it is calculated from the not-rounded imaginary track profile as shown in Figure
A-1.
As a result, the measurement result of the Squeeze OTRC between the revisions
will be different as shown in Equation A-1.
Equation A-1 The difference of Squeeze OTRC
Step
2
-----------
SqueezePos
int
SqueezePos
Step
-------------------------------
Step
×
Ð
Ð
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