Minelab GPX5000 Instruction Manual download pdf (Page 41)

78 79Recovering the Target

Double D Setting Monoloop (Mono) Setting (with Double D coil)

Strongest Signal

To pinpoint a detected target sweep the general area with the

coil taking note of where the strongest signal is received.

By shortening the length of the sweep it should be possible

to draw an imaginary line in the ground where the strongest

signal is located.

Lineupthetargetat90°fromtheinitialdirectionandrepeat

the process. The object is located where the two imaginary

lines cross.

Note: With the Coil/Rx switch set to Monoloop or Cancel, when

using a Double D coil, pinpointing will not locate a target in the

centre of the coil; the target will be slightly to the left. The left

edge of the coil can be used to pinpoint shallow targets.

Strongest Signal

It is essential to carry at

least one of the following

digging tools with you

while detecting:

– a pick with broad

scraping blade (essential)

– a crowbar (for very deep

objects in hard ground)

– a small, strong digging

spade or shovel (for soft

soils, sand, etc.)

1 Clear the area of loose surface material and check that the

target signal is still there. If it is not, the target should be

amongst the moved surface material.

2 Remember if there are other signals close to your target.

This is important so when you come to dig your hole you

do not heap the loose dirt on top of another target already

in the ground.

3 If the target signal is still present use your pick to dig to a

depth of approximately 50mm (2”).

Note: When digging, avoid sharp edges to the hole as they

can produce false signals, potentially masking the target.

Slope the edges of the hole to avoid any problems.

4 Sweep the coil over the hole to determine if the target has

been removed. If the target signal is not heard then the

target should be in the pile just dug. Otherwise dig a little

deeper and check again.

5 Start digging approximately 100mm (4”) in front of the target

to reduce the chance of damaging it. Damaging a coin, relic

or gold nugget may reduce its value.

Continued next page...

Pinpointing

Continued...

Tip: If detecting on loose

dirt or gravel you can

actually draw the lines

using your shoe or pick.

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Minelab GPX5000 Instruction Manual Page 41

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