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Using the Locator: Tracing
Having pinpointed a service it should now be possible to trace its route.
1. Carefully follow the direction of the signal holding the Locator at right
angles to the line of the signal. It is necessary to constantly ‘slice’
the Locator from side to side in order to be sure of still being over
the peak signal response.
2. Stop and mark the position of the signal at regular intervals.
As more marks are recorded the precise direction of the service
will become more apparent.
Lost Signals
This can be because of a curve, or bend in the route, change in depth
of the service, a T connection or the end of the service.
Finding Lost Signals
1. Walk in a circle at least 1 m (3’3”) around the point where the signal
was lost. This should locate the service if the signal has been lost
because of a curve or bend in the route of the service, or a T connection
into another service.
2. If you find nothing then increase the sensitivity and repeat the circle.
This should find the service if it has continued but at a greater depth.
NOTE It may be necessary to re adjust the sensitivity to maintain the optimum response.
NOTE After tracing, return to the original search grid to search for further buried services.
WARNING Never rush the tracing process. Small and unexpected changes in the service’s route will be missed
if care is not taken to follow the signal’s path every step of the way.
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