Tektronix 1503C, User Manual, Page: 50 / 128

Operator Tutorial
2–8
1503C MTDR User Manual
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Figure 2–11: Pulse Width at 10 ns
9. Set PULSE WIDTH to 100 ns. Now the pulse is even larger and quite easy to
see.
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Figure 2–12: Pulse Width at 100 ns
10. Set PULSE WIDTH to 1000 ns. The pulse is now longer than the example cable.
This would be a good pulse for a very long cable
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Figure 2–13: Pulse Width at 1000 ns, Longer than the Cable Being Tested
When the PULSE WIDTH control is set to Auto, the instrument automatically sets
the pulse width in relation to the distance on the right side of the display. The
following table shows the relationship between the distance on the display and the
Auto pulse width.