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Treasure Hunting & Metal Detecting Forum Message Boards - Detector Hunter Whites Minelab Tesoro XP > Metal Detecting > Beginners (Moderators: xavier, Ridge Runner) >

How do you set up a search grid using GPS ?

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one_lucky_monkey Topic starter

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Goldpan

	How do you set up a search grid using GPS ? « on: October 09, 2012, 03:38:50 pm »

Hi all,
I'm curious if anyone here knows how to set up a search grid for metal detecting using a GPS?

Basically I want to be able to thoroughly search and area and then search next to it with little or no overlap, that way I can methodically work my way across a large area.

Thanks.

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	Re: How do you set up a search grid using GPS ? « Reply #1 on: October 09, 2012, 04:23:46 pm »

Just set a Start point.

Walk a Path setting Way Points at set intervals.

Move over 4ft and Start Again. Just walk a Path reverse of first travel.

Most Consumer GPS are just about Good enough to do that.

My Historic Magellan is good for three or four feet.

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seldom

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	Re: How do you set up a search grid using GPS ? « Reply #2 on: October 09, 2012, 04:35:24 pm »

How big of an area you talking about?

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	Re: How do you set up a search grid using GPS ? « Reply #3 on: October 09, 2012, 07:42:24 pm »

Like Seldom mentioned. Probably depends on the size of the area. Most consumer GPS units probably would not give you enough repeatable accuracy to do a small grid search. For that just eyeball a land feature like a tree and work to it then reselect another and continue reverse. I've also used some fiberglass sticks about 18" long and placed them as I detected and on the return pick up the stick and move it to your other side.

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one_lucky_monkey Topic starter

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	Re: How do you set up a search grid using GPS ? « Reply #4 on: October 10, 2012, 05:12:38 am »

Well, it is a hillside around an old mine that my gr-gr-grandfather operated along with his brother and was reportedly a very rich strike. The area has a number of quartz outcroppings and I am mostly looking for pocket or bench deposits.

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seldom

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	Re: How do you set up a search grid using GPS ? « Reply #5 on: October 10, 2012, 08:49:06 am »

Being a hill side it could be a few acres to several 100. I don't think a GPS is the answer looks like you will need to go old school and grid it out with stakes and string.

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one_lucky_monkey Topic starter

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	Re: How do you set up a search grid using GPS ? « Reply #6 on: October 13, 2012, 01:30:29 am »

You're probably right, I just wanted to ask others to get a better idea if it might work with a GPS.

Thanks

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	Re: How do you set up a search grid using GPS ? « Reply #7 on: October 13, 2012, 03:14:36 pm »

I think that an I-pad would be very helpful to you but like Seldom pointed out doing it the old school way is probably the best.

Regards Xavier

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	Re: How do you set up a search grid using GPS ? « Reply #8 on: October 13, 2012, 03:24:41 pm »

Old school is the best if you can,,,,, most GPS's are accurate to a point but very rarely to the exact spot..... I have used the "Trails" app before and found it to help, but again not 100% accurate.... old school is best.

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one_lucky_monkey Topic starter

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	Re: How do you set up a search grid using GPS ? « Reply #9 on: October 14, 2012, 12:38:47 pm »

So......How large of a search area in menageable at6 a time taking into account that I may start in a creekbed and work my way up a hillside?

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