zhangxiaotong

确实是这样，我就怕被抓，犯不上呀！三四千选什么脉冲呢？

On 8/4/2020 at 11:13 PM, kac said:

A PI machine might be an issue if you have a lot of trash objects. There are other deep vlf machines such as Blisstool and simple ones like the Nokta Coinfinder CF77 but neither of those have a display on target so they take a bit more learning on what is a good target and bad target. Depth difference with those machines can be marginal depending on ground conditions such as mineralization. Bottom line your splitting hairs when looking at the bigger picture of overall depth.

There is another machine you may want to check is the Garrett ATX.

         Thank you for your recommendation          

     CF77 and BLISSTOLO feels a small number of machines, I did not hear, maybe I'm novice! Look at the CF77 advertising is a good machine in the depth, in China both of which are almost difficult to see someone, do not know what kind of performance will be what?

2 hours ago, xlbsa said:

如果你只是业余爱好的话！我还是建议你使用觅宝800大盘或者xp13英寸大盘这两种机器！职业玩家可以入手一台大深度国产脉冲！

你好，在这里聊天是缘分，

肯定是黑豹！根据来这看的资料才知道，原来金属类的探测器原来就那么点深度，包括脉冲。很多人想象的金属探测器，现实中只有探地雷达能达到！

黑豹我看国内每家公司都在卖，具体性能具体咱也不知道，和黄金面具比怎么样？

This thing looks funny. Is it different from the probe VLF?

On 8/3/2020 at 12:08 AM, Steve Herschbach said:

Any current well known model will do the job. The Equinox 800 and XP Deus are a couple very popular detectors that will handle most any task you desire. Beware excessive claims... anything advertised as working more than a half meter should be suspect, anything over two meters all buy impossible.

https://www.detectorprospector.com/forums/topic/3081-how-deep-can-i-detect-coins-relics/?tab=comments#comment-34467

 

Thank you very much for your professional reply and valuable information in the link, which has played a key role in my understanding of the detector. I think your answer is rigorous, because VLF and PI have technical limits, and have reached the depth limit in the 1990s. Later, only horizontal technologies such as double impedance and metal resolution have been developed. Do you have any comments on the characteristics of Bulgarian deep tech ground pioneer 4500 and golden mask deep Hunter Pro 5? Is the relationship between them and GPZ 7000 just suitable for searching for metal objects with different sizes?

谢谢您的鼓励

2 hours ago, GB_Amateur said:

Welcome, Zhangxiaotong!  That is interesting looking country.  Are those caves (natural or human excavated) or mines?  I hope whatever they are that they are safe, if you're going to detect inside them.

I can't really give you site specific advice.  The White's TDI/SL won't discriminate between different metals as well as the others so you will likely spend a lot of time digging trash if using it.  Typically PI's are used in highly mineralized ground where the IB/VLF detectors (others you mention) don't work well.  Thus the decision between PI and IB/VLF depends upon how mineralized (ferrous content) the ground is.

Thank you very much for your suggestion. The dwellings (cave dwellings) you mentioned are used for thousands of years in the Loess Plateau, and some people use them now. The pictures you see are probably ancient villages one or two hundred years ago. Those ancient cave dwellings are not  It's safe. It can only be detected in the yard. A deep detector is needed, because the ground has collapsed loess!  The soil layer is relatively thick, and there are ancient historical wars here. The history is one or two thousand years old, and there are many similar relics!

Hello everyone, I am a treasure hunter from the Loess Plateau in northern China. I am very happy to come here to meet you. With my current simple experience, I cannot determine the use of a machine suitable for our local soil. I would like to ask all the experts to consult.  The pure loess plateau here is less mineralized, the soil layer is pure, and there are very few rocks. I am currently optimistic about the machines, Whites Spectra v3i, AKA SiGNUM MFD, mostly Xp35 and Minelab. I want to buy a deep  A good machine is mainly looking for silver coins and copper coins. I hope you can give excellent suggestions. In addition, I want to know if the depth of the Whites TDI SL pulse machine can exceed V3I and Aka. Please give excellent suggestions from friends who have used it.  I will be grateful for this, thank you all!