11
11
GENERAL HINTS
Pin-Pointing
When pinpointing it is important that the search head is held still while pushing in and
holding the detune button. Hold the search head close but not directly over the suspected
centre and while keeping the search head stationary, depress the button. Now, sweep towards
the centre of the target. Repeat this procedure until the response is a short audio blip and that
will be the centre of the target. To verify the reliability of your target, it is a good practice to
check it from another angle. Try to ID the same target at 90 degrees from your first reading.
Also, by holding the pinpoint button in and checking depth, you can check that you have
correctly centred over the target. When the target reads the shallowest depth, that is the centre
of the target. Always use care in retrieving the target so as not to damage your find.
(i) The strongest signal will always be received when the object is directly beneath the centre
of the head (see X in the diagram below). To pinpoint the find, stop the search head when
you are directly over the target object, then move the search head through 90
0
and sweep
again, thus forming a cross with the two sweeps as shown in the diagram.
(ii) To ‘focus’ the target signal still further raise the search head, retuning if necessary, and
pass the search head over the object until only a faint signal is heard.
The faint signal will then be occurring at a point X under the centre of the head (see
diagram). More accurate pinpointing, particularly of deep buried objects can be achieved by
finding the centre of the target object as described above and making a mental note of the
position.
Turning your detector through 90
0
and sweeping across the target again will give a second
reading, accurately determining the centre of the object.
Digging carefully at point X will reveal the find.
