NaviTrack Scout
Verify the locate.
1. At the point of maximum signal strength, and with the mast vertical,
move the Scout perpendicular to the Equator line on the screen. When
the Pole icon appears move Scout until the Pole icon is centered on the
crosshairs with the lower antenna ball on the ground. Place one of
the triangle orange markers on the ground at this spot.
View when Scout is on the pole.
2. Move Scout back across the Equator line to the other pole. Center the
crosshairs on the second Pole icon and mark its position as before.
3. Move back to the maximum signal strength. Mark this point on
the ground with the yellow hexagon marker chip. Move the lower
antenna ball slowly away from the yellow marker in all directions while
observing the signal strength display. The signal strength should be
highest directly over the sonde.
4. Look to see that all three markers are aligned and that the yellow
hexagon marker is approximately halfway between the Pole markers.
If the yellow marker is not in the middle, see the section on tilted sondes.
Being on the Equator does NOT mean you're over the sonde!
IMPORTANT
Remember that signal strength is the key factor in locating the sonde. You
must be at the point of highest signal strength.
For best accuracy use the bubble level. The mast MUST be vertical when
marking the Poles and Equator, or their locations will be incorrect!
5.5 Measuring Depth
The Scout measures depth by comparing the strength of the signal at the
lower antenna to the upper antenna.
Depth is measured when the bottom antenna is touching the ground directly
above the signal source.
1. To measure depth, place the locator on the ground, directly above the
sonde or line. Make sure that the angle indicator reads 5 degrees or
10
less. Then slowly rotate the unit in the direction of the arrow shown on
the bottom left of the screen until the depth appears.
The bubble level is useful when measuring depth to make sure that the antenna
mast is vertical.
In order to maximize signal and achieve a more accurate depth reading, the
Scout needs to be rotated to align the antenna with the signal.
2. Depth will be shown in the lower left hand corner.
3. Force Depth Feature - If the angle indicator reads higher than 5
degrees then the Scout will not give a depth measurement. Press the
down arrow key and hold it. This will force the depth if depth can be
measured (see the following section on tilted sondes).
When checking the depth always take a measurement, then rotate the Scout
180 degrees (1/2 circle) and take another depth measurement. Be sure that
the lower ball stays at the same position on the ground and the mast is
vertical. If the depth readings are not within about 10% of each other then
distortion is present and the depth reading should be questioned.
5.6 Operating Tips for Locating a sonde
• Use the sound when possible to help guide the Scout to the maximum
signal strength.
• If the Equator is crossed, and the signal is not maximized, follow the
Equator to the highest signal strength. Simply finding the Equator of
the sonde (the dashed line on the screen) does NOT indicate that the
sonde has been found. The point of maximum signal strength must also
be found. If the sonde is steeply tilted, the Equator will NOT lie directly
above the sonde and the distance from the sonde to each Pole will not
be equal. If the sonde is tilted, maximize the signal.
• Always confirm the point of maximum signal strength. Verify what
the map is showing, unless it is known for a fact that all the required
conditions have been met. The map assumes the following conditions:
1. The ground is level.
2. The sonde is level.