Completely newbie and completely lost. Need Help / Advice

Hi Xavier.

Thank you so much for your replies. Well, my problem is like this. There is a lot of activity like farming in the area, we are at a mountain foothills, (which means that we had many activities like slidings, torrents etc), so i thing that what ever i'm looking for, it has to be pretty deep down and the soil is rocky, (i would say about 30% small rocks, 30% gravel and 40% soil). That is why i need a machine that goes deep and have nice discrimination. I wouldn't like to dig 1 or 2m to find an old can. OK, i do understand that there is no such machine as a gold detector, but if i would expect something like 70% accuracy from a Vlf machine, i would be optimistic ?

And something else. You say i could build a machine. Is that difficult? Τhere are complete footprints for machines like these? There are any DIY kits? I don't really know if it is better for someone to build or to buy a machine, as i have never done something like this before.


Thank you for your advices
Krampits

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,36479.msg224906.html#msg224906

I don't know of any VLF that will detect at 2m. There are a few detectors that you can get in a kit and there are others that you can buy that have been assembled but you will still have to place it on a shaft and make your own coil. I sell a detector that comes with the coil but I do not have the time to build any now and probably not for the next three months not to mention that I only build PI detectors and there is no discrimination (Not yet any way). The other question that you will need to answer is, is the soil highly mineralised or not? Ho and by the way I doubt it that you'd find a beer can at two meters.

All the best Xavier       

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,36479.msg224973.html#msg224973

Xavier

Hi, just want to put my 2 penneth in, and offer some advice from what i have found out (correct me if i'm wrong  )

I'm fairly new to this, but from what i have read PI detectors do go deeper, but if its gold your looking for they need to be well tuned to pick up gold as the feedback from the decay signal is very small as gold is such a good conductor.  a 10" PI coil can easily pick up a tin can at 70cm but a gold coin/chain at at 26cm at a push as the signal gets weaker due to amount of current/magnetic field induced in the gold object is much smaller due to its highly conductive properties and its resistance to producing eddy currents.. if your looking for nuggets about the size of a cigarette packet the range of depth perception would be increased slightly due to the size and mass of the object .. bigger coils go deeper but tend to overlook smaller items ...  however you'll be digging up every item as the PI detectors do not discriminate.

VLF detectors don't have quite the depth of a PI but do give a better reading as to whether the item is ferrous or non-ferrous. I have a cheap VLF detector, with an 8" coil, and only get about 8-10 inches depth detection on iron and i find a lot of pull-tabs and tin cans too (i'm still to find coins, rings and stuff.. but i'm not that lucky.. yet). However, at least i get an idea of what i might be digging up before i get it out of the ground. but i do need to keep tuning it due to changes in mineralisation in the ground.

Personally i would build my own unit (PI, which i'm still planning on doing  - yes i've almost saved enough to start my project    ) and custom coil (or go to a shop and air test several models with a gold sample i.e. a large gold ring/bracelet ) and air test to a range that you are happy with  then go out and dig everything.. as they say, you only get out what you put in .. and sometimes that takes a bit of effort .. yup i know it sucks  .. but life isn't always meant to be easy or we'd all be Rich 

GL with what you decide .. hope you find what your looking for

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,36479.msg225002.html#msg225002

Thank you Lord Dragon and homefire.

So, I was wrong about the discrimination capability of PI machines homefire? Cause if that is the case, then i would give a shot on a PI machine. By the way, when you say 12us what do you mean?? And last, when you say they find gold, what accuracy, (approximately), are you talking for ?

Thanks guys. Really thanks...

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,36479.msg225008.html#msg225008

The problem Xavier is that i don't want to built a machine. At least for now as i don't have any experience, not only in building machines but in metal detecting also. So i was just hoping for you guys to propose a machine for me. Now that you know the goals i'm trying to reach, (i think), which machine comes to your mind that you think it would suits me best ? I could go out there and buy a machine, but i thought it would be best for me to get an opinion first from guys that know the sport, if you know what i mean  As to this point, i've learned some things, but i don't have a machine to practice what i've learned, and most of all, i'm more confused than ever on choosing a machine. 

Thank you in advance...



Posted on: June 08, 2012, 06:29:03 PM

---

Does anybody know the White's Spectra V3i ??
Does anybody own one yo share with me his experience ?

Thank you in advance...

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,36479.msg225091.html#msg225091