Minelab F3 Manuel de service télécharger pdf (Page 26)

F3 INSTRUCTOR NOTES

Minelab Countermine Division Safety Through Excellence

P0627-A

NOTE

To an experienced operator the shape of the mapped area can indicate whether

multiple targets may be present. However, the volume from the large target

may mask the volume of the smaller target and so great care is necessary for

accuracy. If the coil is moved very close to the ground, it will be easier to hear a

smaller target when close to a larger target.

Twenty

Three

Multiple Targets (Cont.)

o STEP 2 Determining the Centre

The pitch of the Threshold Tone will rise or fall depending on the

combination of metals or the composition of metal in a mine. This

means that, in some instances, experienced operators may be able to

identify one mine against another.

By slowly moving the coil across the mapped area, it may be possible

to detect tonal differences indicating multiple targets.

P0854-A

**WARNING**

The volume from a large target may mask that of a small target if the

small target is located very close to the large target.

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Minelab F3 Manuel de service Page 26