Hard observation requestion

[Mark-VA]

Can someone describe the signal pattern between the concentric and DD Coils. I know this is a hard or maybe impossible question because ground minerals and buried metal objects will distort both the send and receiving signals. Even though I've been hunting for many years, this question arises in my mind from time to time.

[WM6]

You mean coil emission field pattern or something with signal and phase?

[Mark-VA]

A field pattern that would give me a visual idea of what might be happening with the coil.

[WM6]

I have something with inserted comments in Slovenian.

On first pic it is idealized draw of DD coil field shape (on left field shape front view, on rigt side view):



Second is CC field on Fisher F2 example (same shape no matter of side of view):

[ODM]

Various manufacturers have their own "guides" toward search coils. Basically it goes as they show, but ground conditions altering the field and various target sizes/orientations matter a lot as well. Basically as stated earlier, but it varies with conditions and targets.

[Qiaozhi]

Can someone describe the signal pattern between the concentric and DD Coils. I know this is a hard or maybe impossible question because ground minerals and buried metal objects will distort both the send and receiving signals. Even though I've been hunting for many years, this question arises in my mind from time to time.

This might help ->
http://www.garrett.com/hobbysite/hbb...ech_sheet.aspx

[Mark-VA]

That is some very useful information. Thanks

This might help ->
http://www.garrett.com/hobbysite/hbb...ech_sheet.aspx