2.3.6 Balance Control
The Balance Control matches the instrument to the im-
pedance of the cable under test and cancels the output pulse
out of the waveform display. Connect the instrument to
the cable, adjust the balance control so the pulse out area
is as flat as possible.
If a fault is contained in the pulse area, the balance control
will not be able to balance the reflection out of the wave-
form so the fault will be visible.
2.3.7 Vertical Gain
The Vertical Gain increases or decreases the vertical am-
plitude or gain of the waveform display. Increasing the ver-
tical gain of the waveform display allows the user to see
smaller reflections or minor faults on the cable signature.
2.3.8 Setup Options Menu
Before using the Model 3300, there are several setup op-
tions you can choose from. The options chosen will re-
main selected, even when the instrument is turned off.
Options available
Distance format:
FEET or METERS
Distance graduation markers are
the same format as the distance
reading display.
Velocity format:
VOP % or V/2
Backlight ON or OFF at start-up
ON or OFF
Single or dual cursor option:
SINGLE / DUAL
Cancel test lead length
in distance reading
YES or NO
Horizontal Reference
ON or OFF
The distance format option allows the operator to select