Agilent Technologies 75000 Series C - Manual (Page 76)

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