Agilent Technologies ENA Series

Chapter 7 97
Characteristics
Fault Location Distance Range and Resolution
Typical Distance Data in Feet
Table 7-10 Fault Location Distance Range or Maximum Distance (in feet) Versus
Resolution at 201 Points
1
Frequency
Span (MHz)
Distance
Range (feet)
Resolution
(feet)
Frequency
Span (MHz)
Distance
Range (feet)
Resolution
(feet)
Velocity Factor = 0.5 Velocity Factor = 0.8
1300 37.18 0.15 1300 59.49 0.23
650 74.36 0.29 650 118.97 0.46
200 241.67 0.94 200 386.67 1.51
60 805.55 3.15 60 1288.88 5.03
20 2416.66 9.44 20 3866.65 15.10
Velocity Factor = 0.6 Velocity Factor = 0.9
1300 44.62 0.17 1300 66.92 0.26
650 89.23 0.35 650 133.85 0.52
200 290.00 1.13 200 435.00 1.70
60 966.66 3.78 60 1450.00 5.66
20 2899.99 11.33 20 4349.99 16.99
Velocity Factor = 0.7 Velocity Factor = 1.0
1300 52.05 0.20 1300 74.36 0.29
650 104.10 0.41 650 148.72 0.58
200 338.33 1.32 200 483.33 1.89
60 1127.77 4.41 60 1611.11 6.29
20 3383.32 13.22 20 4833.32 18.88
1. See Appendix A for typical coaxial cable characteristics including velocity factor.