What is the difference between a DD and a Concentric coil? And is there a specific purpose to each?
Thanks
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#1
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What is the difference between a DD and a Concentric coil? And is there a specific purpose to each?
Thanks |
#2
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I've always used a DD. Heres a few pictures.
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I find the following to be true most of the time:
DD coils have more of a half football fov than a knife blade DD coils separate better in one direction- when target to trash is is in a line from left to right DD coils work better in high mineralization CC coils go deeper but swings need to be overlapped by 1/3 of coil diameter CC coils can separate deep targets better CC coils ID more accurately- bottle caps etc CC coils detect coins on edge better when swinging over the coins from edge to edge __________________ |
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Thanks. It appears there are differences in when you would use each. Will either type work on a given MD if they're available?
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I'd beg to differ on a few of these, in mild soil a cc can match a dd on depth, but not in mineralized soil.
A cc used to detect coins on edge better, but dd+higher freqs and multi freqs namely the Nox have balanced that. Originally Posted by MuddyMo View post |
#7
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![]() Originally Posted by ghound View postNot even the magical nox can make a DD as good as a CC at finding coins on edge in both directions. 3:00 into vid. https://m.youtube.com/watch?v=ISiZGsp4OUo __________________ |
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