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DD vs Concentric Coils

Canewrap

New member
Why have DD coils become the standard coils on most newer detectors? Granted, the DD coil is better in bad ground and doesn't require as much overlap, there are a lot of advantages to the concentric coils. First off, pinpointing is typically easier, ID is better and depth is better for the equivalent size. If you're not consistently hunting bad ground, you would probably do better with a concentric coil. As for the overlap, my thinking is that you need to be overlapping anyway, even with a DD coil, since hitting areas from different angles can reveal targets that couldn't be separated out at the initial angle of attack. There are advantages to both coils, but if I'm not hunting bad ground, I really prefer an elliptical concentric.
 
I think the bottom line is going home with more keepers. For me there is no comparison. I go home with far more keepers with my DD's than any concentric I've ever used. Probably why most all detector manufactures have gone DD.
 
Canewrap said:
Why have DD coils become the standard coils on most newer detectors? Granted, the DD coil is better in bad ground and doesn't require as much overlap, there are a lot of advantages to the concentric coils. First off, pinpointing is typically easier, ID is better and depth is better for the equivalent size. If you're not consistently hunting bad ground, you would probably do better with a concentric coil. As for the overlap, my thinking is that you need to be overlapping anyway, even with a DD coil, since hitting areas from different angles can reveal targets that couldn't be separated out at the initial angle of attack. There are advantages to both coils, but if I'm not hunting bad ground, I really prefer an elliptical concentric.

I have found that for the DD Ids a lot better and I get the same depth as a concentric here in Texas dirt also pinpointing is easy with a DD coil usually right off the tip of the coil will put you dead on the target
 
In my experience the pin-pointing with DD is a little more tricky but after I got the hang of it I don't have any trouble now. (I use center of the coil.
ID with the DD on my Omega is MUCH better! other than rusty bottle caps.
Depth is better with the DD on my Omega,
In fact I traded my concentric coil off for a smaller DD coil.

Mark
 
I am trying to get used to the DD coils as I have been using concentric coils for 14 years. I am definitely not as accurate with the DD. hopefully over time I will be......
 
Opposite here. With large coils I can pinpoint better with the dd's verses the concentric.
 
klever said:
I am trying to get used to the DD coils as I have been using concentric coils for 14 years. I am definitely not as accurate with the DD. hopefully over time I will be......

This may help you a bit,
DD coils pin-point better than concentrics from side to side, but not as well from heal to toe because of the DD extreme long and narrow detection field. What I found is when I dig the plug I take into consideration this pattern and I dig a football shaped plug in the orientation of the detection field, (a little longer than wide) and keep in mind that I pin-point in the center of the coil, in doing this I have found that the plugs go back in better and I find more of the targets in the first cut without chasing target and expanding the holes. So, I'm not digging any larger holes than before, square inch wise anyway.

Mark
 
They tend to be better at target separation in trashy areas because of the narrow footprint.
 
DD will give better coverage at depth. Next time you hunt take notice on deep targets how much of the coil hits a target. An example would be the CZ compared to a Sov. On a deep target the CZ will hit only in the middle of the coil, its like your hunting at depth with a very small coil. Now on a Sov you can usually hit the target with a reduced but larger portion of the coil.
I think you miss targets more with concentrics no matter the soil conditions.
 
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