best pulse

[ZOUjiarui]

What pulse metal detector is most friendly to mineralized soil without a ground balance? Is it pulsar, lorentz 5, xr7, xr71, tl12000, polones, or modified felezjoo?

[ZOUjiarui]

pi without ground balance, need to increase resistance to mineralization. The only answer I got was to increase the gain and sensitivity, add a precision potentiometer, and more modifications?

[ZOUjiarui]

DD coils will be excluded. The planned coil is a square shape of 1-2 meters

[Carl-NC]

I suspect that in order to use a 1-2 meter coil you need a circuit that runs in static mode. And I also suspect that increasing the gain/sensitivity will make things worse, not better. Other than that, probably most basic PI circuits can be made to work, and I have no idea which would be "best."

[ZOUjiarui]

I need to run pi on red clay. The most likely outcome is to work close to the lowest sensitivity. So a precision potentiometer is needed to reach the critical point of sensitivity and reach the best range. I've seen a video of an expert who modded the fpi and ran it on clay, but he wouldn't tell me how. He gave me a lot of useful information.

[useus]

What pulse metal detector is most friendly to mineralized soil without a ground balance? Is it pulsar, lorentz 5, xr7, xr71, tl12000, polones, or modified felezjoo?

what do you mean by modified felezjoo?

[GeoMax]

Hi ZOUjiarui,

you say, you need to run a PI detector on red clay soil. What kind of detector have you tried on red clay soil? And how has the detector behave?

And can you give us the link to the video you mention in post #5. What additional information have you got from the person? Maybe, if you share the
information people can help you to figure out what kind of modification he has done to the detector.
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[ZOUjiarui]

Hi ZOUjiarui,

you say, you need to run a PI detector on red clay soil. What kind of detector have you tried on red clay soil? And how has the detector behave?

And can you give us the link to the video you mention in post #5. What additional information have you got from the person? Maybe, if you share the
information people can help you to figure out what kind of modification he has done to the detector.
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The mentioned video was nowhere to be found and he deleted all information. The soil where I live is highly mineralized and full of iron ore, and it's easy to pick up small pieces of iron ore from just about anywhere. The fpi only works at the lowest sensitivity, the surf pi won't work, it's like metal everywhere. It is entirely possible that the soil mineralization here exceeds that of Australia, but there are no gold deposits

[GeoMax]

Have you tried the Delta Pulse or Sniffer XR7 / XR71. They have an automatic GB.

[GeoMax]

Can you post a schematic of the fpi detector you mention. Maybe people can get than an idea of what modification needs to be done. This would help.

[ZOUjiarui]

Can you post a schematic of the fpi detector you mention. Maybe people can get than an idea of what modification needs to be done. This would help.

I don't have any information

[GeoMax]

Hi ZOUjiarui,

I had a quick look at the Felezjoo PI detector schematic which I found on the Internet. The detector just has an analogue front-end circuit. The remaining circuit is for a digital detector. That means, all of the modification is most likely made within the software. If the source code is not available, you cannot do much at all.
What detector circuit have you build so far? Maybe you can modify one of them to run on red soil as well.

[ZOUjiarui]

Hi ZOUjiarui,

I had a quick look at the Felezjoo PI detector schematic which I found on the Internet. The detector just has an analogue front-end circuit. The remaining circuit is for a digital detector. That means, all of the modification is most likely made within the software. If the source code is not available, you cannot do much at all.
What detector circuit have you build so far? Maybe you can modify one of them to run on red soil as well.

I don't have a good circuit, I plan to build gs4, or add ground balance to mpp, this is the best circuit in the forum

[ZOUjiarui]

It's all back to square one, high mineralization requires ground balance.

[ZOUjiarui]

A complete commercial circuit is the best option, gs4. A real gs6 might work for me, but I don't have gold bars to buy it