How do I stop my ATP from hitting on hot rocks?

shedigz · Mar 16, 2014

It seems like the park I was hunting was just full of hot rocks. My detector kept giving me a lot of good signals, but nothing in the hole.
Some holes I had over 10 inches deep but nothing.
I noticed the rocks actually made my pinpointer sound off.
What can I do to avoid digs for nothing.

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choppadude · Mar 16, 2014

I have the same problem at an older park in my area. The old roads were filled with cinders and "Hot rocks" All seemed to read in the low to mid 70's on my ID. Have not really figure how to deal with them but will be watching this thread to hopefully find out what can be done.

SeaninNH · Mar 16, 2014

You can't.... Hot rocks are part of the game.

roaddust66 · Mar 16, 2014

Coal Clinker

http://en.wikipedia.org/wiki/Clinker_(waste) it is real common to find coal clinkers in yards where they heated the house with coal. They clean out the bottom of their coal stove and throw the remains in the back yard

Isaac43 · Mar 16, 2014

I always find "coal" that rings 39 on my ATP. I don't know what it is but it's black and usually 10-12 inches deep, it sounds like deep coin almost.

Rather-B-Huntin · Mar 16, 2014

Isaac43 said:
I always find "coal" that rings 39 on my ATP. I don't know what it is but it's black and usually 10-12 inches deep, it sounds like deep coin almost.

Could be coke?

MadTownScoop · Mar 16, 2014

Try to listen for some odd buzz or click or anything that makes them different from coins or other objects in that VDI range. Not much else you can do other than use a smaller coil and that probably wont stop it from happening. Was using my MXT Pro on a sledding hill friday and had lots of "hot rock" poping up on my screen. Didnt know it would tell me that. May have to dig a few when it tells me that to see if it's right or not. Got all summer for that tho.

goodmore · Mar 16, 2014

try to ground balance right on top of them.

ohiochris · Mar 16, 2014

Raise your iron discrimination and that will help with some of it , if it dont get rid of them it should atleast cause the sound to change enough so that you can tell what you are hearing and the extra clicks and pops lets you know its either iron or "hot rocks". One of the Garrett videos talks about hot rocks. There are so many variables you wont be able to get rid of all of them but should be able to get to where you can recognize when to dig on one and when not to. Its the exception to the "dig everything" practice , the way to deal with hot rocks is to identify most of them so you dont have to dig those. Listen in between those tones for the higher tones to sneak out from behind them and dig those.

LittleJohn · Mar 16, 2014

goodmore said:
try to ground balance right on top of them.

yup...what he said :goodpost:

GlassGuy808 · Mar 21, 2014

Same deal today beach hunting.

I was going crazy until I figured out what was going on.
I GB and changed modes etc. it's only my third time out and I went to a different beach this time.
I did notice a lot of the time a depth did not register and stay like it did with a coin or "real" metal items.
The ATP did find a hairpin at about 8 inches down, that made me crazy because I couldn't see it without my glasses on.. LOL

rick-n-ns · Mar 21, 2014

GlassGuy808 said:
I was going crazy until I figured out what was going on.
I GB and changed modes etc. it's only my third time out and I went to a different beach this time.
I did notice a lot of the time a depth did not register and stay like it did with a coin or "real" metal items.
The ATP did find a hairpin at about 8 inches down, that made me crazy because I couldn't see it without my glasses on.. LOL

If your talking salt water beach the pin point depth feature often does not work there, even if it is a good target.

Many, but not all "hot rocks" do indeed act, and sound different, it is something that is very dificult to explain in words, but for those digging empty holes chasing after them, you will catch on. Those other ones, like the coal, clinkers etc, are very positive, and no way to avoid those.

Everywhere I go there are more or less hot rocks...how I envy the people who don't know what they are because they don't have any.

richbat · Mar 22, 2014

Simple answer,Stay away from them. :laughing:

Ice Scratcher · Mar 22, 2014

richbat said:
Simple answer,Stay away from them.

Even better, take the batteries out...

<*)))>{

popatop · Mar 22, 2014

Im glad that we don't have to deal with them here.

detectingMO · Mar 22, 2014

a slight positive GB offset may help. you lose a little depth though.

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mandad76 · Mar 24, 2014

goodmore said:
try to ground balance right on top of them.

+1.....may try gb offset +/- a few numbers....speed up ground tracking....try all-metal mode if not too trashy....gl and hh!!!

detectingMO · Mar 25, 2014

mandad76 said:
speed up ground tracking....try all-metal mode if not too trashy

Not options on ATP, right?

fs_hockey · Apr 1, 2014

Isaac43 said:
I always find "coal" that rings 39 on my ATP. I don't know what it is but it's black and usually 10-12 inches deep, it sounds like deep coin almost.

My house was a old farm house and I found this area in my yard that has a lot of hits and a lot of coal, some pieces the size of baseballs

How do I stop my ATP from hitting on hot rocks?

shedigz

Elite Member

choppadude

SeaninNH

Senior Member

roaddust66

Senior Member

Isaac43

Banned

Rather-B-Huntin

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MadTownScoop

Elite Member

goodmore

ohiochris

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LittleJohn

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GlassGuy808

rick-n-ns

Senior Member

richbat

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Ice Scratcher

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popatop

Senior Member

detectingMO

mandad76

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detectingMO

fs_hockey

Junior Member

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