|The single most important issue in Random testing after accuracy is correct random energy. This means the excitation energy must be, not only random in frequency, amplitude, and phase but constantly changing as well. Incorrect random energy causes the test to fail to conform to industry test standards.
page The accepted specification for amplitude variability is described as: 120 Degrees of Freedom (DOF) for control and WILL vary at least +/- 1dB. It does not say it MAY. The statistical standard for Random says it WILL vary +/- 1dB, at least.go
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http://www.jsira.com/pay-to-do-my-uni-report.html Random Product Brochure & Technical Specifications
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