depth up to 3 feet and modifications

[Lires]

Hello treasure net forum members. I am new to this forum and would like to ask a few questions in regards to modifying a metal detector.

1. Can you tell me which metal detector offers a deeper range up to 3 feet? I am looking for an iron or copper box, approximately 5 x 10 inches in hard and occasionally with small stones soil. The box contains gold coins.

Someone suggested a White’s MXT as a good detector, but it cannot search in such depth.

2. Do you know if it is possible to modify this or any other metal detector to search deeper than the depth range set by the manufacturer?

3. Are there any electrical engineers who can modify metal detectors?

4. Are there any (military) mine detectors, which can search deeper than the commercial metal detectors?

5. Are there any metal detectors, which can locate a metal (iron) box and give a different signal for the contents (gold)?

Thank you in advance for the information.
‘Lires’

 

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[nc-joe]

The MXT Might work if you used a large coil, like an 18" EXcelerator. There are coils upto something like 24" for the White's machines that run a 6.59kHz freq.

Otherwise, if you know for sure the approx location I think a 2 box set up would work.

http://www.kellycodetectors.com/Detectorcategories/2boxdetectors.htm

 

[Lires]

nc-Joe: Thanks for the reply. I am looking at the 2-box option, particularly the TM 808. Lires