The Cable Route Tracer is designed to locate, trace and
measure the depth of buried energized power cables. The
heart of the instrument is a compact control box attached
to a precision-wound, swivel-mounted detecting coil that
operates from three basic positions:
- Horizontal: for maximum
deflection over the cable
- Vertical: for a null over
the cable
- 45° angle: for a null at a
horizontal distance from the
cable that is equivalent to the
cable depth
The receiver of the locator features a filtering circuit that
responds only to the existing electrical energy radiating
from the buried cable. The chronic problem of
identification in congested areas is eliminated, because the
receiver is insensitive to telephone lines, gas and water
pipes, and steel reinforcing. | 
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