Jeohunter - Visual Ground Scanner

[Funfinder]

Hello fordranger,

most depth you can reach with slow search @ 90-100% sensitivity and iron on while searching very close to the ground and wearing/holding no other large metal objects. Of course most depth you will get with the 1m coil on larger objects.

Data logging in that case would be useless because there is no ground-mapping and you either get a detection signal or not. The Jeohunter has already a short data-logging line that captures the signal-curves as a graph.

The Jeohunter really is the best possible deep search compromise - especially for heavy mineralized soil - at this price-level you can get. As example the Nexus Ultimate (costs around 3500 Euros) has the electronic unit directly at the holder which makes the searching weight much more heavy. And it has no 1 meter coil or LCD display. And the Jeohunter still can find small buttons or bottle caps and coins a two-box or 1m PI frame never would detect.

If I have time I'll try to develop an eliptical 2ft DD coil. This would be another huge depth gain compared to the medium coil and perfect for single person use.

[fordranger]

Jeohunter

Hi Funfinder,
What do you think if Jeohunter is associated/work together with data logger. Do you think I can achieved more depths ????

Cheers,
Fordranger

[Funfinder]

Hi indio yaqui!

The Jeohunter really is a professional detector and I fully recommend it. Mine still works fine after 2 years of intense usage, even at winter time and heavy rain.


For steep mountain-regions the standard coil is too heavy but I will find a way to make it more lightweight.

One of the big advances is the immunity against strong powerline fields. Today - because of very steep region - I've been out with my lightweight-modified Garrett GTI1500 (in original this MD also is too heavy - especially together with Detech 40cm coil) but I had to adjust the sensitivity below 50%! That beeping-concert nearly drove me crazy and alot MDs react on powerlines like hell!

I wonder what those MD producers and circuit developers are thinking? Where powerlines are, there are people too, but no metal?

indio yaqui, about the depth:

For 5-6 feet the find needs to be around 1,5 feet in diameter.
And for this depth I really would recommend the 1m coil (see picture above). You need a second person for this coil. If this is not possible for you, I recommend the standard version with the more than 1ft large medium size coil.


However it also depends on soil, how slow you wanna search and experience how deep you will be able to detect!


As example if I run around in the woods with 80% sensitivity and ground balance -50 I can detect 3inch cannonballs at around a half meter. But this is just some kind of highspeed compromise. If I would search slowly at 90% and perfekt groundbalance I could find it at around 2 feet.

Lucky treasurehunting!

[indio yaqui]

joehunter

to funfinder
tell me are you still good with your joehunter? am thinking of getting me one,and where am going i need it to detec @ like 5 to 6 feet in the ground. you still recommend joehunter and if yes which one?

[Funfinder]

> Hi Funfinder, Thanks for you reply, by the way did you experiment on 1 meter coil.
thanks
G

Thank YOU!

Well, I did experiment already, I got some special technical info and made some indoor tests so far but this is no problem because of the detectors ability to reset value state setting and totally immune against even very close electricity or EM radiating devices.

The limit of this 1m coil are objects around 3-5cm in diameter (canadian silver dollar) from around 30cm distance.

But the most powerful depth will start with objects that have 10cm in diameter and above.

That coil has 2 holders so usually it is for 2 persons. In wintertime I will use some kind of very old snowboard prototype completly out of plastic and drag the coil on my own over flat fields.

Govind - this coil is very powerful and weights around 8kg. Because of the Jeohunters Non-Motion VLF close to the limit sensitivity you will get much better results than with 1m PI frame, especially if ground is mineralized. You even can find stronger mineralized stones or cavity within mineralized soil!

Have you watched already the new Jeohunter manual clips on youtube? Do you have some strong arm-muscles? If yes, you will see that it is not that complicated to use and it has a really good depth distance detection (how deep is the stuff buried).

If you really have around 7000 dollars for treasure hunting investment and you want to do this for a longer time, you should directly get for such a good detector. At least you really should buy a detector with a real large coil that has 35cm / 1 foot diameter minimum, because the regions you can search are much larger than a small coil is useful for. You know, this results into a special motivation-gain-ratio:

If you need a half day for 10 squaremeters with a little coil you may find just a few objects and this will frustrate you. But if you "whirlwind" around with a half meter coil over fields and woods and search through 500-1000 sq.meters like I do within 6-7 hours for shure you will have finds without end!

btw. if you set the sensitivity of the Jeohunter to 60% you wouldn't need any Groundbalance at all (just leave it at the zero value) and still will find alot stuff - but of course this is just for the beginning to get used with it, in later time the more sensitivity and better groundbalance you use, the more finds and depth you will get.


A week ago I found a fabulous rare special cannon-ball and since then I was hunting every day, even 2hours at night with dimmed lamp on my head. You really have an experienced guy here with me, I'm not telling you any nice stories but how it works in reality.


I hope you will get all the needed information so you can take the best possible personal opportunities concerning treasure hunting.

Take care and please tell us here how you decide and your first steps into treasure-hunting.

[Govind]

QiaozhiQuote:
Originally Posted by Funfinder
@ Qiaozhi
Accepted - but may I ask what are your concerns?

I do not think it is suitable for Govind, as it will be too difficult for him to use. Also, I have seen a Nokta Golden King in action (which is similar to the Jeohunter) and personally I didn't like it. The owner had used it for about a year, and still had to refer to the user manual and the DVD to remember how to use it properly. This seems to be confirmed by some of your previous postings. The description of how to ground balance the device was horrendous. I thought the Nokta was cumbersome, difficult to see the display in sunlight, and gave erratic results. Maybe that's just my opinion, but I wouldn't recommend it to anyone. Sorry.

> I do not think it is suitable for Govind

My opinion, too.

Well, the Nokta Golden King costs 2000 bucks plus and has alot of additional stuff - the usage of the Jeohunter is pretty simple compared to that one.

And usual groundbalancing is uncomplicated, too - adjusting the GB value until lifting the coil from 10-40cm no longer gives a metal or cavity signal. That's all.

However - it's a very large coil that reacts much stronger on mineralic ground changes that's why some experience is needed if someone wants to search with more than 70% sensitivity for maximum depths.

The DD coilshape of the Jeohunter is more practicable than the OO shape of the Nexus Ultimate and if someone can get the old Jeohunter Model with 40cm standard coil for around 2000 Euro he has the same depth but saved 1500 Euro.

But Govind better should get some experience first, even if he has alot of money he can spent for such detectors.







Govind, for PI you also need alot experience especially on heavy mineralic ground - and VLF has better disc while PI often has no discrimination at all. PI can magnetize mineralic ground and other stuff. And using 1m frames not always is fun or practical.

But for real depth you need at least 1ft / 35cm coils which are no longer very sensitive to small coins or nuggets and you need a detector that is tunable into the critical adjustment area. But this needs alot experience you haven't already. Depending on electricity-line pollution you need a detector that has good filters otherwise it will decrease the sensitivity. The Jeohunter as example is completly immune against all kind of such disturbing radiation!


Anyway, it really depends on the location where you're searching, what stuff you wanna find especially and how much experience you have. Thx for your interest and have a good start with treasure-hunting.

Hi Funfinder, Thanks for you reply, by the way did you experiment on 1 meter coil.
thanks
G

[Funfinder]

QiaozhiQuote:
Originally Posted by Funfinder
@ Qiaozhi
Accepted - but may I ask what are your concerns?

I do not think it is suitable for Govind, as it will be too difficult for him to use. Also, I have seen a Nokta Golden King in action (which is similar to the Jeohunter) and personally I didn't like it. The owner had used it for about a year, and still had to refer to the user manual and the DVD to remember how to use it properly. This seems to be confirmed by some of your previous postings. The description of how to ground balance the device was horrendous. I thought the Nokta was cumbersome, difficult to see the display in sunlight, and gave erratic results. Maybe that's just my opinion, but I wouldn't recommend it to anyone. Sorry.

> I do not think it is suitable for Govind

My opinion, too.

Well, the Nokta Golden King costs 2000 bucks plus and has alot of additional stuff - the usage of the Jeohunter is pretty simple compared to that one.

And usual groundbalancing is uncomplicated, too - adjusting the GB value until lifting the coil from 10-40cm no longer gives a metal or cavity signal. That's all.

However - it's a very large coil that reacts much stronger on mineralic ground changes that's why some experience is needed if someone wants to search with more than 70% sensitivity for maximum depths.

The DD coilshape of the Jeohunter is more practicable than the OO shape of the Nexus Ultimate and if someone can get the old Jeohunter Model with 40cm standard coil for around 2000 Euro he has the same depth but saved 1500 Euro.

But Govind better should get some experience first, even if he has alot of money he can spent for such detectors.

Hi Funfinder,
Thanks for you message. I was under the impression that more expensive detector = more depth.
I knew from this forum's great Gurus that it is not true. Even if the detector is sophisticated, it takes experience to understand and properly ground balance the device. I think that the products out there like joehunter, nokta, okm etc, are of no use for a beginner like me.
What i understand from my limited knowledge is What ever technology you come up like VLF GPR etc
are no match for PI's simplicity and there are big frames for depth.
I dont understand why should I not leverage on PI alone when it is so promising that the PI will not miss the target. Is there anything that I am missing except discrimination of the object or is there anything special about VLF and GPR
Your response and help are highly appericated.
Thanks
G

Govind, for PI you also need alot experience especially on heavy mineralic ground - and VLF has better disc while PI often has no discrimination at all. PI can magnetize mineralic ground and other stuff. And using 1m frames not always is fun or practical.

But for real depth you need at least 1ft / 35cm coils which are no longer very sensitive to small coins or nuggets and you need a detector that is tunable into the critical adjustment area. But this needs alot experience you haven't already. Depending on electricity-line pollution you need a detector that has good filters otherwise it will decrease the sensitivity. The Jeohunter as example is completly immune against all kind of such disturbing radiation!


Anyway, it really depends on the location where you're searching, what stuff you wanna find especially and how much experience you have. Thx for your interest and have a good start with treasure-hunting.

[hung]

i cant,the box is sealed like all the MINEORO LRL.

The 08MI is a good two box,if well tuned its better than the TM808,but i think Hung is wrong about the targets distance,the best i get was one old target (soda can size) 1meter depth,where my TM808 only get 80cm.

Sounds like you don't know how to calibrate the device which by the way requires good expertise to get the better out of it. The architectures of the 08MI, CM80, MP10, etc. have some differences from regular comercially available 2boxes. Damasio did some inovations on them. I tell about this in an old thread 'Antenna Short Story' I posted here some years ago.

The 08MI features 3 knobs including the TX control and they require extreme critical balance or you won't get proper detection. In fact, if you don't know how to properly set them, you might end with no detection at all.

I had a 08MI exactly as yours. But I can safely say that the one I got now, is far superior. It features the original transistors and circuitry from the first generation 08MIs.
In fact, in terms of performance it almost matches that of the MP10. Current 08MI can be turned into a MP10 by some tweaks and changing of transistors.

Yesterday I had some free time and I was playing with it in my garden. My model has even more options of calibration which makes it more complex. For instance I can set it to discriminate and still keep the sensitivity. With a particular balance between the TX control knob and the vernier in the RX, the reception gain increases by going a little backwards instead of going up.
This allowed me for instance to easily detect a small gold plate 7 x 7 cms 1.2 meters deep.
In fact when under the sun at about noon time, the VU starts to manifest 1 meter away from the plate until it triggers when exactly over it.

And yes... I was wrong.
Mr. Trelha detected the gold coins from 80 meters away in 1969. Not 120.

I mistook him for someone else who was the one who actually detected a target from 120 meters away. Damasio told me that this person was in the central region of Brazil. Very hot and very dry environment which facilitates electrostatics.
For this reason he had to change the distance of detection in Mineoro's advertising. However it's interesting to see that now they state the range as much less. Maybe because of the thousands of radio stations in activity nowadays?
It would be a good question for Damasio to answer. Unfortunately he is deceased.

[der_fisherman]

Two Box depths of detection

The 08MI is a good two box,if well tuned its better than the TM808,but i think Hung is wrong about the targets distance,the best i get was one old target (soda can size) 1meter depth,where my TM808 only get 80cm.

That sounds quite reasonable, but with good tuning, it may be possible to actually detect such big items slightly deeper.......or surely its not worth having a two box.

To my mind, even quite reasonably designed modern PIs and VLFs can sometimes find coke cans at around/almost such depths......at least according to some of the posts I have read here.....and a VLF one I built about 34 years ago could find coke cans at about 75cm.....(I had no discrimination to help me decide when not to dig!!! That was a DEEP hole and took simply ages....)...

I always understood that Two Box detectors could find at least large targets, such as coke cans, at even deeper depths (not as far as the 100meters+ Hung mentioned though!!) than the normal PIs and the like.....though I have never ever used a two box myself......

What do the rest of you Guys say? Can Two Box machines find such targets deeper than that (assuming you want to find coke cans!!). Also how good are they on small coins and the like.....has anyone here a lot of "valid" experience they can tell us/me about?

Here is a video of a two box detecting a paint can at over 1m50cm, which is sort of in the range of what I would expect myself......See:-

http://www.youtube.com/watch?v=2Lu_ZvKN9IM

Regards

Andy

PS. Probably talking about two box machines here is not quite correct on a TGSL page, but I am mainly interested in the comparison of all good and bad points with respect to say a TGSL (I am building an IGSL at this time and its starting to work great!)......so please don't jump on me for posing the question....

I want good discrimination and not to have to "excavate" so deeply......bad back!!!

[aft_72005]

i cant,the box is sealed like all the MINEORO LRL.

The 08MI is a good two box,if well tuned its better than the TM808,but i think Hung is wrong about the targets distance,the best i get was one old target (soda can size) 1meter depth,where my TM808 only get 80cm.

How you tuning it well? From what distance (soda can size) detected???

[aft_72005]

i have only in portuguese...

Ok , How you working with it? How you ready it for detection ? How you tuning head screw?

[Morgan]

Hi Morgan
I am interest see pictures from inside MINEORO 08MI box.
Please take some pictures from PCB , box , heads and alignment instruments
Installed in heads .
Thanks for trouble .
Best regards.

i cant,the box is sealed like all the MINEORO LRL.

The 08MI is a good two box,if well tuned its better than the TM808,but i think Hung is wrong about the targets distance,the best i get was one old target (soda can size) 1meter depth,where my TM808 only get 80cm.

[Morgan]

Hi Morgan and hung
Also I need MINEORO 08MI English instruction manual.
Are you having it?
Best regards.

i have only in portuguese...

[aft_72005]

Hi Morgan
I am interest see pictures from inside MINEORO 08MI box.
Please take some pictures from PCB , box , heads and alignment instruments
Installed in heads .
Thanks for trouble .
Best regards.

Hi Morgan and hung
Also I need MINEORO 08MI English instruction manual.
Are you having it?
Best regards.

[Govind]

Quote:
Originally Posted by Govind
Hi Qiaozhi, Thanks for your reply. Loranz seems to be pretty expensive. the deep max x5 and x6 around 7000 to 9000 dollars respectively. And if i have to buy another vlf detector i need to spend another 5000 like joehunter. That would exceed my budget. As i am new to metal detecting i am bit worried to spend roughly 15000 dollars. Even after spending this much mony i am not sure if i will find anything useful hidden. Are there any cheap alternatives.
How about i buy whites TM 808 and joehunter which is in my budget. Your help is highly appericated
Thanks
G






@ Qiaozhi
Accepted - but may I ask what are your concerns?

The Jeohunter is the same good as the Nexus Ultimate and it's development is for real depth and for additional use with very powerful 1m coil. I have this coil already and I will make some tests in the near future so you will see how much depth-power the Jeohunter really has in it.


@ Govind
In your case - because you're a beginner - Qiaozhi's right - better not use the Jeohunter - could be too complicated, heavy and expensive for you.

You can buy a two-box but you can't carry shovel and stuff together with it - this may be a big problem for jungle-expeditions!
However 2box would be good for larger sized stuff that's deeper.

Or you can buy a PI with 50cm coil for around 1000-2000 dollars.
(a few of them have some kind of discrimination)

For beginning you also can order the MD-5008 from ebay for 250 dollars - just to get used with MDs at all.

Or you can get the Garrett GTI2500 with 2in1: 2box depth frame coil and 30cm coil (order additional Detech 40cm Excelerator for much more depth)

Good luck getting started and don't spent too much money!

PS dont forget the Garrett Pro-Pinpointer for fast recovering of the targets.

Hi Funfinder,
Thanks for you message. I was under the impression that more expensive detector = more depth.
I knew from this forum's great Gurus that it is not true. Even if the detector is sophisticated, it takes experience to understand and properly ground balance the device. I think that the products out there like joehunter, nokta, okm etc, are of no use for a beginner like me.
What i understand from my limited knowledge is What ever technology you come up like VLF GPR etc
are no match for PI's simplicity and there are big frames for depth.
I dont understand why should I not leverage on PI alone when it is so promising that the PI will not miss the target. Is there anything that I am missing except discrimination of the object or is there anything special about VLF and GPR
Your response and help are highly appericated.
Thanks
G