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Operator Tutorial
2–14
1502C MTDR User Manual
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ac 3.000 ft
return FILTER to desire setting . . .
Figure 2–18: Cursor at 3.000 ft
5. Turn the NOISE FILTER control to 1 avg. Note that the distance window
now reads 0.00 ftD. This means that everything from the front panel BNC to
the end of the cable is subtracted from the distance calculations. You have set
zero at the far end of the test cable.
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ac 0.000 ft
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Figure 2–19: New Zero Set at End of Test Cable
6. To change the HORZ SET REF position, turn the NOISE FILTER back to
HORZ SET REF and repeat the above procedure with a new cursor location.
7. To exit HORZ SET REF, do the following:
a. Set the
n
o
POSITION control to exactly 0.00 ft (you might have to set
DIST/DIV to .1 ft/div).
b. Push STORE.
c. Turn the NOISE FILTER control to the desired noise setting.