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™
3 Using the vLoc3-5000
Log
0
0.78m
233mA
50°42′59.90570′′N
3°26′35.54358′′W
27.50m
0
SD
2
233mA
• Continue to locate, pinpoint and trace.
NOTE
If several lines are commonly bonded, the signal direction will carry through to the other lines. This is
useful for locating multiple line installations.
However, be aware that if a non-target line is commonly bonded to the target line, that line will also
appear “in sync” with the target line.
When performing a reset, take care to ensure that you have not strayed from the target line.
3.12 Signal Select (SiS)
Signal Select is a feature that helps confirm that the correct line is being located and conveys information
relating to the quality of the signal being detected.
Apply the transmitter SiS tone using the Loc3-10SiSTx transmitter. Preferably use the direct connection method as this does not
require transmitter-receiver synchronization. See below synchronization reference.
Not all frequencies are available with Signal Select. Frequencies available are identified with “SiS” to ensure the receiver and
transmitter are set to the same frequency & mode.
48.5
SIS-982kHz
22dB
25.4mA
0.63m
Locate the line as previously described. The “+” “-” indicator and the line direction indicator will show “+” and forward when the
correct line is detected.
The direction of the signal in the targeted line is determined by analyzing the demodulated Signal Select signal sign. When the
receiver is positioned over a signal that carries an inverted field (i.e., one in which the phase is –180° from the expected), the
Guidance Compass points down (backward), as shown below for a line that carries return current.
