RIDGID NaviTrack Scout Manual Del Usuario página 4

NaviTrack Scout
The field emitted by a charged line.
(Passive, AC Tracing is just a special case where the line is "energized" with
electrical power.)
The second type, sondes (also called transmitters, beacons, or active duct
probes), emit a differently shaped field and the Scout is programmed to
measure and display this type of field. The more complex field shape of
a sonde is called a dipole field, and is the same as that produced by a bar
magnet and our planet Earth.
The dipole field emitted by a sonde.
Electromagnetic fields have three (3) important properties: frequency,
strength and angle (direction). Unlike conventional locators, which can only
measure strength in the direction of the individual antenna(s), the Scout
measures both signal strength and field angles in three dimensions (3D).
This enhanced capability makes the mapping display possible.
The experienced operator can use this additional information to speed the
locating process and to help sort out complex locating situations. On the
other hand, the occasional or novice user can easily locate using signal
strength alone.
The Scout locating rule #1 is make the number big! –
Maximizing signal strength is the key, primary locating method.
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Example of how the Scout maximizes directly over the sonde.
Whether line tracing or locating a sonde, maximum signal strength occurs
over the target. Depth is displayed when over the target.
2.3 What Is The Scout Multi Directional Advantage?
Viewing all of the signal with Multi directional antennas offers definite
advantages:
1. Signal always gets stronger as user gets closer to the target.
2. Eliminates Nulls and "Ghost Peaks". A conventional locator signal
has a peak, then a null and then a smaller peak. This can confuse
the operator, especially if they interpret a smaller peak as the target
(known as "Ghost" or "False" peaks). The Scout sees just one peak to
draw the user to the target.
False Peaks
Nulls
Peak
Sonde signal as "seen" by a conventional locator. Main peak in
center and two false peaks outside the two nulls.