Operator Tutorial
2–14
1503C MTDR User Manual
O
F
F
O
F
F
O
F
F
O
N
ac
0.00 ft
Figure 2–22: Filter Returned to Desired Setting
The vertical scale now reads 0.00 dB.
Return-loss measurements at the far end of the cable can now be made using normal
methods. To make measurements closer or farther from the instrument requires that
you reset the VERT SET REF.
5. To change the VERT SET REF, turn the noise filter back to VERT SET REF
and repeat the preceding procedure.
6. If you wish to totally exit VERT SET REF, do the following:
a. Turn NOISE FILTER to VERT SET REF.
b. Turn VERT SCALE for a display reading of 0.00 dB (or 500 m
).
c.
Push STORE.
d. Return the NOISE FILTER control to the desired setting.
VIEW INPUT
This push button allows you to view what is coming in the CABLE connector, or
to eliminate it from the display.
1. Set the 1503C front-panel controls to:
CABLE
Attach 10-ft cable
IMPEDANCE
93
NOISE FILTER
1 avg
VERT SCALE
0.00 dB
DIST/DIV
1 ft/div (0.25 m)
PULSE WIDTH
2 ns
2. Press VIEW INPUT. The indicator block on the LCD should read OFF and the
waveform should disappear from the display.
Summary of Contents for 1503C
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Page 92: ...Appendix A Specifications A 6 1503C MTDR User Manual...
Page 104: ...Appendis B Operator Performance Checks B 12 1503C MTDR User Manual...
Page 122: ...Glossary Glossary 6 1503C MTDR User Manual...
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