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2.3.2 Distance Between Cursors
When a test is initiated, the two independent cursors
are used to measure the distance to a fault or to the
end of the cable. The cursors are interchangeable; but,
to reduce confusion, use the 1st CURSOR to mark the
point you are measuring from and the 2nd CURSOR
to mark the point you are measuring to. The cursors
will retain their accuracy and resolution regardless of
distance or horizontal zoom settings.
Model 1205CXA's unique dual independent cursors
feature allows you to place cursors at, and measure to
(or between) ANY TWO POINTS on the waveform. The
distance displayed will automatically adjust with the
movement of the cursors.
DISTANCE BETWEEN CURSORS is automatically
calculated and displayed. Distance is determined from
the cursor placement on the waveform. Therefore, the
accuracy of the cursor placement is crucial to accurate
readings. For greatest accuracy, place the 1st cursor
to the "0" distance marker and the 2nd cursor at the
leading edge of the reflected pulse.
To set the cursors, zoom in on the point of interest us-
ing HORIZONTAL ZOOM. Set the first cursor by using
the 1st cursor left and right arrows to the “0” distance
marker on the waveform. To set the second cursor, use
the 2nd cursor left and right arrows to move the second
cursor to any point of interest. For a more accurate dis-
tance reading, zoom in on the reflected pulse for better
detail and adjust cursor placement manually.
The distance between the cursors is displayed on the
LCD. Remember that the distance measurement is not
from the transmitted pulse, but from the first cursor to
the second cursor. Accuracy of the distance reading
is dependent on the placement of the cursors and an
accurate VOP.
