Metal detector coils

[49er12]

I have a curious mind, question is regardless of the brand detector u use, would u say the average or at best the coils detect up. To 2 feet deep or range obviously, appreciate your opinion yes I understand it depends which one using. Also expensive as they would b and the idea of digging deeper, and weight why haven’t they made a coil to search deeper, if so educate me. I appreciate your honest response.

Are they hobby detectors and so called commercial detectors that perform such depths

 

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[Iffy Signals]

I dont have experiance with PI machines but have had a wide range of hobby from the At pro to CTX and i would say the range is around 12-14” max on a coin size object.

 

[Loco-Digger]

The target size has much to do with how deep you can detect. I can hit a soda can deeper than I can on a dime. I have never used a PI machine, but I here they go deeper than a VLF machine, the only drawback is there is no discrimination. Many CW relic hunters use these and dig everything.

My question to you is "How many 2ft deep holes do you want to dig in a day"?

 

[Professor of Engineering]

Hello 49er12,

Also a very deep quality (Silver, gold...etc.) target will most likely pull the VID down below it's expected region. Thus giving you the incorrect information needed to make a dig or not dig decision. I have used some very large coils and yes they get deep, but I dig everything while relic hunting. Larger items return more signal to be analyzed and smaller coin size (small jewelry) less. At depths of 3" - 6" it probably makes no difference with quality machines. Think of large aluminum cans we dig at ridiculous depths, they produce a very large return signal which throws off the depth gauge...etc. I have dug many silver coins extremely deep that were showing a VID in the foil through iron region. Now other factors also play here (soil conditions, target orientation, metal type, machine settings...etc.) but you get the idea.

Sorry for the long reply

Doc

 

[A2coins]

That's all true a bigger coil will go deeper but you will lose depth on smaller targets most people think they gain on smaller but they don't read up and research the science behind it. Also a large coil you don't want to use in a target rich area cause everything under the coil will be sending a signal. Do research talk with the tech guys at the coil muanufacturers