Calibration
6–22
1502C MTDR Service Manual
O
F
F
O
N
ac
O
F
F
O
F
F
–1.316 ft
Figure 6–36: Rising Edge at Center of Display
3. Turn the VERT SCALE control clockwise for a reading of more than
1.0 m
r
/div.
4. Verify that the leading edge of the pulse moves less than five pixels (0.02 ft).
O
F
F
O
N
ac
O
F
F
O
F
F
–1.316 ft
Figure 6–37: Rising Edge with Scale at 1.0 m
r
/div
You may also use the Max Hold function found in the Acquisition Control menu,
within the Setup menu. This function can simplify this measurement for you by
displaying jitter accumulating. See the Operator chapter for directions on using Max
Hold.
O
F
F
O
N
ac
O
F
F
O
F
F
–1.316 ft
Figure 6–38: Rising Edge with Max Hold on
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