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Test Accuracy
Ratio (TAR)
Test Accuracy Ratio (TAR) for the E1445A is defined as: AFG
Accuracy/Measurement Uncertainty, i.e.,
TAR =
Maximum − Expected Reading
Measurement Uncertainty
For single-sided measurements, Test Accuracy Ratio is not defined, so ’NA’
(Not Applicable) will appear in the TAR column. For TARs that exceed
10:1, the entry is ’>10:1’.
74 Verification Tests Agilent E1445A Service Manual