Tektronix 1502C User Manual

Page of 126
Table of Contents
1502C MTDR User Manual
iii
List of Figures
Figure 1–1: Rear Panel Voltage Selector, Fuse, AC Receptacle
1–2
. . . . . 
Figure 1–2: Display Showing Low Battery Indication
1–3
. . . . . . . . . . . . . 
Figure 1–3: 1502C Front-Panel Controls
1–5
. . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–4: Display and Indicators
1–6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–5: Vp Set at .30, Cursor Beyond Reflected Pulse 
(Set Too Low)
1–13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–6: Vp Set at .99, Cursor Less Than Reflected Pulse 
(Set Too High)
1–13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–7: Vp Set at .66, Cursor at Reflected Pulse 
(Set Correctly)
1–13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–8: 20-ft Cable at 5 ft/div
1–14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–9: Short in the Cable
1–15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–10: Open in the Cable
1–15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–11: 455-ft Cable
1–16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–12: 455-ft Cable
1–16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–13: Reflection Adjusted to One Division in Height
1–17
. . . . . . . 
Figure 1–14: Return Loss
1–18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–15: Ohms-at-Cursor
1–19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–16: Display with VIEW INPUT Turned Off
1–20
. . . . . . . . . . . . . 
Figure 1–17: Display of a Stored Waveform
1–20
. . . . . . . . . . . . . . . . . . . . . 
Figure 1–18: Display of a Stored Waveform
1–21
. . . . . . . . . . . . . . . . . . . . . 
Figure 1–19: Waveform Moved to Top Half of Display
1–22
. . . . . . . . . . . . 
Figure 1–20: Current Waveform Centered, Stored Waveform 
Above
1–22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–21: Current Waveform Center, Stored Waveform Above, 
Difference Below
1–23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–22: Waveform of Three-Foot Lead-in Cable
1–24
. . . . . . . . . . . . 
Figure 1–23: Cursor Moved to End of Three-Foot Lead-in Cable
1–24
. . . 
Figure 1–24: Cursor Moved to End of Three-Foot Lead-in Cable
1–25
. . . 
Figure 1–25: Cursor Moved to 0.00 ft
1–25
. . . . . . . . . . . . . . . . . . . . . . . . . . 
Figure 1–26: Incident Pulse at Three Divisions
1–26
. . . . . . . . . . . . . . . . . . 
Figure 1–27: Waveform of Short 75 ohm Cable
1–27
. . . . . . . . . . . . . . . . . . 
Figure 1–28: Waveform Centered and Adjusted Vertically
1–27
. . . . . . . . 
Figure 1–29: Cursor Moved to Desired Position
1–28
. . . . . . . . . . . . . . . . . 
Figure 1–30: Waveform Viewed in Normal Operation
1–29
. . . . . . . . . . . . 
Figure 1–31: Waveform Showing Intermittent Changes
1–30
. . . . . . . . . . .