Tektronix 1502C - Test Preparations; Finding an Unknown Vp

Operating Instructions
1502C MTDR User Manual
1–13
The following three illustrations show settings too low, too high, and correct for
a sample three-foot cable.
O
F
F
O
F
F
O
F
F
O
N
ac 3.000 ft
Figure 1–5: Vp Set at .30, Cursor Beyond Reflected Pulse (Set Too Low)
O
F
F
O
F
F
O
F
F
O
N
ac 3.000 ft
Figure 1–6: Vp Set at .99, Cursor Less Than Reflected Pulse (Set Too High)
O
F
F
O
F
F
O
F
F
O
N
ac 3.000 ft
Figure 1–7: Vp Set at .66, Cursor at Reflected Pulse (Set Correctly)