Tektronix 1502C Operating Instructions, 1502C MTDR User Manual 113, Figure 17: Vp Set at .66, Cursor at Reflected Pulse (Set Correctly), Figure 15: Vp Set at .30, Cursor Beyond Reflected Pulse (Set Too Low), Figure 16: Vp Set at .99, Cursor Less Than Reflected Pulse (Set Too High)

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)