New Detector; "Nokta" DPR!!!!

[Qiaozhi]

Hi Qiaozhi
Yes, it is LRL , published at Turkish site.
It is re uploaded at geotech forum, also I remember dissection about it at the
Past by me and Max.
This is for third time re uploaded .
But , important point , is it work ?
Best regards.

Did you and/or Max build this circuit?

[ma330]

please see this post and help me

http://www.geotech1.com/forums/showt...4765#post94765

[aft_72005]

Did you and/or Max build this circuit?

Hi Qiaozhi
I didn’t build it, about Max, don’t know.
Best regards.

[michael]

Hi friends.

Hi buddies,
You are talking about DPR-deep processing radar- or or a total scam of Nokta. As i m a Turkish citizen, really sorry about the purchasers of Nokta Detectors abroad. They are really making scams with a lot of huge advertisings for toys.
One guy mentioned that they went to NOKTA and tested in their field. Yes they have field with full of cheating that never resembles real ground territories.
Before with their Nokta 106 which is a scam also, they were trying inside the shop and showing to people that it detects from 2m away one gold bracalet!!! How it is possible with a simple 12,5Khz VLF metal detector?
Yes if the mentioned firm is Nokta everything with cheating is possible.

Nokta earned really huge amount of money from Turkish Tr.hunters, this is a fact. But when the day came and people came to know the detectors they made is not working as they demonstrated in ads and field they rebelled and now Nokta has a very bad name in Turkish market and not able sell detectors. So what they made?
They started to export by having some non-caring only selling targeted companies such as Kellyco and many others. Poor you are.

This Golden King or Princess is a simple VLF detector that furnished with lots of useless aspects. Nokta 106 which is a simple and very bad working VLF detector has been covered by LCD screen and put some more big coils for it.
Check it out: their all detectors work with 12,5KHZ even 10 years back one even Golden Princess. They do not have technology but money to cheat and advertise around.

Beware of this stupid Princess. Believe me purchase one Chinese Metal Detector is better than this for depth with the same coils. Believe me they are more stable and easy to carry at least. At least Chinese do not claim that they detectors detect one bracalet from 10m depth or shows cavity and depths

You know how heavy this machine is? OK find out.

You know what the DPR or GPR means? Yes you know but Nokta doesn't know or want to cheat people with wordplayings. 12,5Khz and DPR!!!

No word!!! Regards,

Thank you man for sharing these info. I don't know about this firm and its' products and so rely on your comments about their previous products. but are you sure about their new product (Golden king)? I.e. have you yourself ever used it or witnessed its' workability?
My friend (compatriot) here who imported Golden king made some tests gave me his results and I share you:
" I got with smallest search coil not remarkable result.
but with 2 bigger ones:
buried gas transferring pipe( with 1meter diam.) at 250 Cm.
an iron box with 30Cm x 20Cm x 20Cm dimension at about 3m.
and in another place which had been buried more junk metal objects as test at about 6m.
they could get repeatable and good signal."

He was groaning of its' heavy weight. about the rest I don't know more.

[Max]

Did you and/or Max build this circuit?

Hi,
no I don't. Have no time for it... also seems not promising to me as LRL or what they call that...

btw... I'm doing a really silly strobe lamp homemade these days... but already fried two xenon tubes!

Are the ones from one-time film-camera stuff... kodak made.

The problem is... I calculate the power (I have no datasheet of lamps ...there are no markings on them) to be delivered by a 225uF/380V capacitor... to get they run at 200% power...

Bad idea... they litterally exploded/cracked inside the plastic housing...
last time I made something similar was kind of a pump system for ruby laser ...using xenon horse-shoe shaped thing... and worked really nice that time running at 150% rated power. Sturdy model that horse shoe shaped!

Now... I'm doing recalculation... will use 120uF/330V to power them next time...

stupid mistake... I was thinking I could run them at twice power... just to discover that I can cook them very fast!

Kind regards,
Max

[Fred]

Did you and/or Max build this circuit?

The upper part is a transmitter modulated by not much,and suposedly working on 73.4khz by the components values.But i suspect they are wrong.
the lower part is a simple receiver tunable around 100mhz ...

[Max]

The upper part is a transmitter modulated by not much,and suposedly working on 73.4khz by the components values.But i suspect they are wrong.
the lower part is a simple receiver tunable around 100mhz ...

Hi,
yes, something like that....

and we saw something similar already... just lower in rx frequency.

But the problem is... how that dang stuff is supposed to give a useful signal due to a target at meters far ?

How does correlate e.g. 70Khz with 100Mhz range ???

Cause if tx runs on LF and rx on VHF I see it not very promising ...

Or maybe Esteban say this works too ???

Kind regards,
Max

[Hobbyist]

Nokta Golden King NGR

Hi friends.

Thank you man for sharing these info. I don't know about this firm and its' products and so rely on your comments about their previous products. but are you sure about their new product (Golden king)? I.e. have you yourself ever used it or witnessed its' workability?
My friend (compatriot) here who imported Golden king made some tests gave me his results and I share you:
" I got with smallest search coil not remarkable result.
but with 2 bigger ones:
buried gas transferring pipe( with 1meter diam.) at 250 Cm.
an iron box with 30Cm x 20Cm x 20Cm dimension at about 3m.
and in another place which had been buried more junk metal objects as test at about 6m.
they could get repeatable and good signal."

He was groaning of its' heavy weight. about the rest I don't know more.

Hello Michael and all.

Firstly I would like to thank Carl for kindly allowing me to register in this forum using my Gmail address. I fully understand the problem that spammers can cause, and agree with the necessity to filter out certain e-mail domains.

I post under the username Hobbyist in thunting.com and Ronin has made the same post over there as he did at geotech1.com. He also admitted that he does not own the Nokta Golden King, let alone used one before. I will let you judge if the opinion of a person who has not touched the machine before is valid or not. IMHO Ronin is rather disgruntled and has his own agenda. I do not tolerate trollish hearsay and have ignored him at thunting.com.

I have been extensively using my Nokta NGR with medium search head. Its performance in mineralised soil has exceeded my expectations. Now it is my main detector. My Discovery TF900 has since become my backup detector. In reply to Michael's query, I shall sum the machine up in point form.

BAD POINTS

1. Misleading terminology used in Nokta's advertising. I knew it wasn't a "radar" device, and bought it anyways.
2. Slightly laggy interface. I find it tolerable.
3. Very heavy weight (solved with the use of a quality harness, hipstick and bungee).
4. LCD screen is hard to read under bright sunlight (solved by making a hood for the screen out of cardboard).
5. Very expensive price. A spare battery is USD399 plus shipping/import duties.
6. Ground balancing is slow and must be done with precision in order to get the best results. It is not a forgiving machine if not properly balanced. Here's a tip: follow the instructions exactly. 40cm means 40cm, 10cm means 10cm. Use a wooden dowel with those heights clearly marked on it when performing ground balancing.

GOOD POINTS

1. The machine can perform well on mineralized soils. Metal objects and cavities were detected 2 to 2.5 meters. I have yet to encounter objects deeper than that.
2. The analysis of the target is seldom wrong. It is not perfect, but gets it right about 9 times out of 10.
3. The depth estimate varies from 5 to 10cm from the actual depth of the target. I think that's rather OK.
4. The dangers of unexploded WW2 ordnance is a constant threat to the detectorist in my part of the world. I have been using 12.5kHz machines since '96 and am bloody relieved to be able to see a screen image of the target before I dig (for obvious reasons) with this particular 12.5kHz machine.
5. The interface is very easy to use. There are several typos in the screen text, but they are minor and forgivable.

I hope this will give you a more balanced view on the Golden King. Let me state for the record that I am not involved in selling metal detectors and have no vested interest in Nokta.

[Ronin]

Haha who cares that you ignored Ronin where man.And makes important that you ignored whom? Who are you to be interested?
At the same time when i wrote here about your toy, having response from you is so meaningfull

Cheating ads are enough to have info about this Golden Princess, am i right?

[Hobbyist]

As I said...TROLL. and he has been uncovered. I rest my case.

[Mustafa]

Metal objects and cavities were detected 2 to 2.5 meters. I have yet to encounter objects deeper than that.

Just curiosity, what objects did you detected at 2 meters depth and how many holes did you digged at least 2 meters depth with that toy?

[Hobbyist]

Mustapha, if you learn some manners and civility, I MAY answer your question.

[erolunall]

Hello

This is not Nokta schematic.İt is Asenkron's Design
He said it is like low frequency Radar.He said it is Working on air but not try for ground.
http://www.teknolojiekibi.com/yeni/i...hp?topic=522.0

Best Wishes
Erol

[Ronin]

Cavity can only be detected with metal detectors specially with vlfs in highly mineralised soils. And this toy is not working properly on highly mineralised soils. So, how come to detect cavity with non-working unit?
How i know it does not work in highly mineralised soil?
Because at the east side of Turkey in one city named VAN(having mineralised soils) one of my friend is-was using. Or let me say, was trying to use. Could never use for the last almost 8 months, then gave it back. Mean to say in mineralised soils contrary of hobbyist claims, this unit is not working properly.

Otherwise to detect cavities in any occasion, you have to use magnetometers, gradiometers, EM machines or GPRs.

Here is the comment of Nokta DPR user:
It gives cavity signal to hot red bricks. Try it hobbyist. If you can find any Roman or Hellenistic Greek bricks in Malaysia try and you will see the truth

Here people are not hobbyist of treasure hunting. They are in need of this and they are using the units as it is their work. It is somehow obligation.
And we have huge old civilizations that used hot bricks which includes mangan mineral. So it is quite difficult to balance the units on such places. Mean to say, there is nothing in the area if there is no hot bricks. Because if there is no hot bricks there is no civilization accomodated. The best and precious old treasures or heritage lays under the hot red bricks where had been accomodated by old civilizations.

Regards,

[Hobbyist]

People of small minds and narrow thinking will not be able to see that there are many kinds of soils in the world. The Nokta NGR works well for me here. If this upsets you, its too bad.
You have no personal experience with the machine. Until you stop propagating hearsay, you still have ZERO CREDIBILITY. I still stand by all that I have said.