RD8000 Operation Manual 35
Tips for using a submersible antenna
The user in the boat should be a specialist or have
considerable experience using a receiver so that they can
give concise instructions to the diver.
It is prudent for the pair to practice working together on
dry land before attempting to locate underwater. Using
the antenna the diver should locate and trace a known
line blindfolded receiving directions from the user with the
receiver out of sight of the line and the diver.
Because of rapid signal loss and a combination of large
surface area and very conductive soil there may be
problems applying a suitable signal for tracing a large
diameter pipe. It may be necessary to use a high power,
low frequency tracing signal.
It is necessary to dene a method of recording target line
position and depth before starting work in the boat or on
the seabed.
Figure 10.13: Using a
submersible antenna
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