pinpointer accuracy

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Dinger207
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pinpointer accuracy

Post by Dinger207 » Tue Oct 16, 2018 9:35 pm

Does anyone else have a problem with the accuracy of the pinpointer facility using the larger coil on the 71?
Digging a hole around the centre indicated point often means I have to enlarge usually the rear left side to find the item indicated.
It's not as accurate as my Fisher



Koala
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Re: pinpointer accuracy

Post by Koala » Tue Oct 16, 2018 11:22 pm

doesn't matter which machine

small concentric will always pinpoint the best


size for size concentric pinpoint better than DD's


vertical coin or sheet metal items pinpoint with a DD at the very top edge and bottom edge of the coil not in the centre


bigger the coil the more chance a near by lump of iron will affect the pinpointing


its important with a large coil to sweep the coil from multi direction. Then average out where the centre is. If in one direction there is a double beep the item will be in between them.


main thing is practice, practice, practice

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