Jeohunter - Visual Ground Scanner

[Govind]

If you don't know what ground balance means, then I suspect both of the detectors you mentioned will be too complicated for you to use. This year I met someone who had a Nokta, and after one year he was still having to read the manual and watch the DVD to figure out how to use it. I would advise buying a simpler cheaper detector in order to learn the basics and to get used to metal detecting.

Hi Qiaozhi, thanks for your reply, but you did not tell what is ground balance. why would it be complicated to use. i can learn slowly at my pace, I am not in a hurry to find something valuable right away. even if i buy a simpler cheaper detector as suggested i still need to spend time to ground balance it. why shouldn't i practice it on joehunter or nokta
Thanks
G

[Qiaozhi]

Hi Qiaozhi, thanks for your reply, but you did not tell what is ground balance. why would it be complicated to use. i can learn slowly at my pace, I am not in a hurry to find something valuable right away. even if i buy a simpler cheaper detector as suggested i still need to spend time to ground balance it. why shouldn't i practice it on joehunter or nokta
Thanks
G

Before I answer your question, please tell us what you intend to search for, and where? For example, do you intend to search inland or on the beach? Are you wanting to go looking for single coins in the local park, relic hunting, a large cache (perhaps a large treasure you think exists in a particular location), searching on the beach, meteorites, gold nuggets, or searching ploughed fields? As you can see, there are many options. It also depends on how deep you want to dig. The size of the objects you're looking for will also affect the decision of what to buy. Ground balancing is not even a requirement for some of these scenarios.

[Funfinder]

Thx Qiaozhi for the very good answer - I can fully confirm this.


Govind,
if you have enough money and if you wanna start with such somehow pretty advanced detector, I think it's possible that you can make it.


Above @ post #310 you can watch the youtube clips and decide if you can handle it.

Groundbalance is the name of the method for eliminating the most possible amount of disturbing signals the ground causes. The more mineralized, the more good groundbalance is needed for getting still reliable metal-detection signals out of the "noise-mix".

The Jeohunter is able to detect even through a thick layer of brickstones but for beginners all this may a little bit too complex.

Because it uses "reset-state non-motion with cavity" which means that if the ground is very strong mineralized the detector get's driven out of the quiet-non-detection-zone at high sensitivity so you have to press the reset button.

Of course this is professional because motion-detectors internally regulate this and make the MD less sensitive. But you have to be used to it and you have to press alot the reset button to get the MD again back to the quiet zone.

And it really depends what you wanna find!
The Jeohunter works great for deep stuff if it's medium in size or larger.

If you wanna find coins or goldnuggets better get a more lightweight detector with smaller coil.

Nokta is more expensive, the new one (Golden Gate) has alot electronical gadgets if you need this but smaller coil and Jeohunter has better coil-quality and the new package comes with 1m ultra-depth coil.

Anyway - it really depends what you want to find, what you need and how much you like to invest.

[Govind]

Thx Qiaozhi for the very good answer - I can fully confirm this.


Govind,
if you have enough money and if you wanna start with such somehow pretty advanced detector, I think it's possible that you can make it.


Above @ post #310 you can watch the youtube clips and decide if you can handle it.

Groundbalance is the name of the method for eliminating the most possible amount of disturbing signals the ground causes. The more mineralized, the more good groundbalance is needed for getting still reliable metal-detection signals out of the "noise-mix".

The Jeohunter is able to detect even through a thick layer of brickstones but for beginners all this may a little bit too complex.

Because it uses "reset-state non-motion with cavity" which means that if the ground is very strong mineralized the detector get's driven out of the quiet-non-detection-zone at high sensitivity so you have to press the reset button.

Of course this is professional because motion-detectors internally regulate this and make the MD less sensitive. But you have to be used to it and you have to press alot the reset button to get the MD again back to the quiet zone.

And it really depends what you wanna find!
The Jeohunter works great for deep stuff if it's medium in size or larger.

If you wanna find coins or goldnuggets better get a more lightweight detector with smaller coil.

Nokta is more expensive, the new one (Golden Gate) has alot electronical gadgets if you need this but smaller coil and Jeohunter has better coil-quality and the new package comes with 1m ultra-depth coil.

Anyway - it really depends what you want to find, what you need and how much you like to invest.

Thanks for your reply Qiaozhi and Funfinder.
I am planning to find some Old artifacts, it could be idols made of black stone or alloy, bronze and mostly gold at depths roughly 2 to 3 meters. The land could be mostly dry and rocky, some times dry river bed with sand (not beach sand ).
I can invest upto $7000 on a good MD.

How do you know when to press the reset button, will there be any indication or is it throught experience that you know now you have to press the reset button.

Thanks
G

[Qiaozhi]

Thanks for your reply Qiaozhi and Funfinder.
I am planning to find some Old artifacts, it could be idols made of black stone or alloy, bronze and mostly gold at depths roughly 2 to 3 meters. The land could be mostly dry and rocky, some times dry river bed with sand (not beach sand ).
I can invest upto $7000 on a good MD.

How do you know when to press the reset button, will there be any indication or is it throught experience that you know now you have to press the reset button.

Thanks
G

It would have to be very large idol indeed to be detected at 2 to 3 metres. Do you need the detector to discriminate against iron?

If a VLF (Very Low Frequency) detector does not have ground balance capability, then it will react to the ground itself as you raise and lower the coil. A lot of older TR (Transmit-Receive) detectors had this problem. You had to keep the coil parallel to the soil, which was difficult to do, especially if the ground was not flat. Detectors that can be ground balanced exploit the fact that soil (in general) only produces amplitude changes and no phase-shift. By sampling at the correct point on the receive waveform, it is possible to only react to changes in phase, hence ignoring the ground. Sometimes ground balancing is called ground effect elimination or ground exclusion balance (GEB). A Pi detector does not need to be ground balanced, as any eddy currents that are generated in the soil have dissipated completely before sampling takes place. Unless, of course, you are looking for small gold nuggets, and are using very fast sampling. In that case eddy currents in the ground may be detected, and other techniques are employed to achieve ground effect elimination.

You might be better off with a PI and a 1m or 2m frame.

[Govind]

It would have to be very large idol indeed to be detected at 2 to 3 metres. Do you need the detector to discriminate against iron?

If a VLF (Very Low Frequency) detector does not have ground balance capability, then it will react to the ground itself as you raise and lower the coil. A lot of older TR (Transmit-Receive) detectors had this problem. You had to keep the coil parallel to the soil, which was difficult to do, especially if the ground was not flat. Detectors that can be ground balanced exploit the fact that soil (in general) only produces amplitude changes and no phase-shift. By sampling at the correct point on the receive waveform, it is possible to only react to changes in phase, hence ignoring the ground. Sometimes ground balancing is called ground effect elimination or ground exclusion balance (GEB). A Pi detector does not need to be ground balanced, as any eddy currents that are generated in the soil have dissipated completely before sampling takes place. Unless, of course, you are looking for small gold nuggets, and are using very fast sampling. In that case eddy currents in the ground may be detected, and other techniques are employed to achieve ground effect elimination.

You might be better off with a PI and a 1m or 2m frame.

Hi Qiaozhi
Thanks for suggesting me to buy a PI MD with large frame instead of joehunter
could you please suggest me some good brands of PI MD. Can i see the
graphical signal image of the under lying object with PI MD. The only problem
for me is the size of the frame that I need to carry from place to place.
Is there any compact PI MD which can serve my purpose even if it is bit expensive
its ok with me. I dont want to carry a big frame.
Thanks
G

[Qiaozhi]

Hi Qiaozhi
Thanks for suggesting me to buy a PI MD with large frame instead of joehunter
could you please suggest me some good brands of PI MD. Can i see the
graphical signal image of the under lying object with PI MD. The only problem
for me is the size of the frame that I need to carry from place to place.
Is there any compact PI MD which can serve my purpose even if it is bit expensive
its ok with me. I dont want to carry a big frame.
Thanks
G

You will not be able to see a clear image of what's underground. Even with ground penetrating radar, you need to be an expert to interpret the images.

You could try a "poor man's GPR" such as the Arc-Geo Logger -> http://lrlman.com/arc-geo%20logger.htm, but again don't expect anything that will show the buried object clearly.

When your target is 2 to 3m underground, you are going to have a hard task. Especially since you've said the soil will be dry and rocky. How important is discrimination?

[fordranger]

Jeohunter

[Hello Funfinder,
I wanted to buy this Jeohunter with 3 coils, do you know of the closest dealer to Philippines, How much do you think is the price now in USD. Is there new version of this MD?

thanks...
fordranger


quote=Funfinder;132420]Ronin, you're back. What have you done all the time?
I know you don't like the Jeohunter but have you really found a better detector yet?

btw. We (me and ishtar hunter) are real users and our tests are real, too - for shure.
If you don't like the Jeohunter, why don't you get yourself a cheap PI an walk around
with 1m frame? Or what was the detector you said it works much better as Jeohunter?[/quote]

[Govind]

You will not be able to see a clear image of what's underground. Even with ground penetrating radar, you need to be an expert to interpret the images.

You could try a "poor man's GPR" such as the Arc-Geo Logger -> http://lrlman.com/arc-geo%20logger.htm, but again don't expect anything that will show the buried object clearly.

When your target is 2 to 3m underground, you are going to have a hard task. Especially since you've said the soil will be dry and rocky. How important is discrimination?

Hi Qiaozhi

you confused me, I was planning to buy joehunter or nokta thinking that would serve my purpose. now I have to start again to decide what to buy.
Thanks
Govind

[Qiaozhi]

Hi Qiaozhi

you confused me, I was planning to buy joehunter or nokta thinking that would serve my purpose. now I have to start again to decide what to buy.
Thanks
Govind

To be honest, you've set yourself a very difficult task. Ideally you really want to test out the various solutions before buying anything.

[Govind]

To be honest, you've set yourself a very difficult task. Ideally you really want to test out the various solutions before buying anything.

Hi Qiaozhi, Can you suggest me what are the better options I have. I am not a guy with science background. I understand very little about the technology. these things like PI vlf etc are just greek and latin to me. can you suggest me in lay man terms what is best for me.
Thanks
Govind

[Qiaozhi]

Hi Qiaozhi, Can you suggest me what are the better options I have. I am not a guy with science background. I understand very little about the technology. these things like PI vlf etc are just greek and latin to me. can you suggest me in lay man terms what is best for me.
Thanks
Govind

OK - but first of all, can you answer these questions:

1. Will the ground be contaminated with iron?
2. Do you need to have some sort of discrimination?
3. Are you only looking for large objects (such as the idol you mentioned earlier)?
4. Would a big frame be ok if it can be taken apart for transporting?
5. Is it important that you can see an image of what's underground, or can you live without that?

[Govind]

OK - but first of all, can you answer these questions:

1. Will the ground be contaminated with iron?
2. Do you need to have some sort of discrimination?
3. Are you only looking for large objects (such as the idol you mentioned earlier)?
4. Would a big frame be ok if it can be taken apart for transporting?
5. Is it important that you can see an image of what's underground, or can you live without that?

Hi Qiaozhi,

The ground will not be contaminated with iron, as there is no human population at all.
It is better to have discrimination
I am looking for large objects not too large might be a feet in length.
Big frame is a problem, if I can dismantle and assemble at the site, then no problem
I dont care if i am not able to see it or not , but onlything is that, if the object is there the detector should not miss it.
Thanks
Govind

[Qiaozhi]

Hi Qiaozhi,

The ground will not be contaminated with iron, as there is no human population at all.
It is better to have discrimination
I am looking for large objects not too large might be a feet in length.
Big frame is a problem, if I can dismantle and assemble at the site, then no problem
I dont care if i am not able to see it or not , but onlything is that, if the object is there the detector should not miss it.
Thanks
Govind

If the ground is not contaminated with iron, then a PI with a large frame (which can be dismantled) may be all you need. Such as the Lorenz:
http://www.metaldetectors.de/uk/index.htm
Look at the 1 x 1m frame coil:
http://www.metaldetectors.de/uk/accessories.htm
The use of a large frame will mean that smaller targets will automatically be ignored anyway. Of course, there will not be any ferrous (iron) / non-ferrous (non-iron) discrimination. You could then use a standard discriminating VLF detector to check any targets found with the PI, and if it cannot detect them at all, it will be a deep object worth digging.

Instead of the PI, you could also try using a 2-box detector, such the TM808 from Whites:
http://whites.co.uk/tm-808-metal-detector.html
http://media.whiteselectronics.com/m...n%20Manual.pdf
Note, like the PI, there is no discrimination.

[fordranger]

Jeohunter

Hello Funhunter/ Ishtar,
May I know what is the difference between Basic and Dual Jeohunter, are they the same. There's a 2-year Joehunter for sale, is it still the same software with the new model? Please reply...

Fordranger