© 2023 Radiodetection Ltd 37
8. Should the ground be uneven the transmitter
may be turned across the line of the service
provided the release support arm remains facing
downwards. (this will improve the stability of the
unit)
One person Nulling Out technique
Figure 6.7 Nulling Out - Single person sweep
1. Lay the transmitter on its side using the side
support arm.
2. Sweep the area around the transmitter with the
receiver at least 10m/30’ from it.
3. Reposition the transmitter at 5m/15’ intervals
around the area and repeat step 2
4. Stop when there is a response
5. Pinpoint and mark any lines
6. Trace the lines out of the area
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