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Measurement Uncertainty @ 500 MHz
Measurement Uncertainty is calculated using the values in Table 2-2 as
follows:
Yr = 0.00032 + 2 ∗ 0.00032∗1.250 + 0.00032 ∗ 1.2502 = 0.0016
Xr = 3 ∗ 0.00046 ∗ 1.250 = 0.0017
Wr = 3 ∗ 0.000 = 0.000
Sr = 0.010 + 0.00032 + 0.016 ∗ 1.250 + (0.015 + 0.00032) ∗ 1.2502 + 0.035 ∗ 1.250 = 0.0980
Vr = 0.0980 +

√
0.00162 + 0.0017
2
= 0.1003
M.U. = Er (linear) = 0.1003 + 1.250 ∗ 0.000 = 0.1003
Measurement Uncertainty @ 1.3 GHz
Measurement Uncertainty is calculated using the values in Table 2-2 as
follows:
Yr = 0.00032 + 2 ∗ 0.00032∗1.350 + 0.00032 ∗ 1.3502 = 0.0018
Xr = 3 ∗ 0.00046 ∗ 1.350 = 0.0019
Wr = 3 ∗ 0.000 = 0.000
Sr = 0.010 + 0.00032 + 0.016 ∗ 1.350 + (0.015 + 0.00032) ∗ 1.3502 + 0.035 ∗ 1.350 = 0.1071
Vr = 0.1071 +

√
0.00192 + 0.0018
2
= 0.1097
M.U. = Er (linear) = 0.1097 + 1.350 ∗ 0.000 = 0.1097
Test Accuracy
Ratio (TAR)
36 Verification Tests
Test Accuracy Ratios are not defined for single-sided measurements, so all
VSWR measurements have ’NA’ (Not Applicable) in the TAR column.
Agilent E1472A/73A/74A/75A Service Manual