Large coil or small coil...

[DirtAngler]

Very interesting how a lot of metal detectorists want large coils for deeper finds and yet there are also a lot of us who seem to think smaller for better seperation is the way to go. I know a lot of it depends on where you are going to hunt but just intrigued by the relationship of going small for seperation or larger for depth and why the coil you use is your preference.

 

[TURNMASTER]

Trash calls for a smaller coil. With out trash I would probably not use one.

The other thing that could make a difference is that a large coil sees more ground and could be less stable in hot ground. Leaving the smaller coil with as much depth as the larger, because of needing to run larger coil at reduced sensitivity. I can usually run the 6" DD hotter than my other coils.

Jeff

 

[Digger]

There is no doubt in my mind that, where I live, there are more old coins still hiding out there due to target masking than due to extreme depth. I've been digging coins for 40 years and could count on my fingers the number of coins I've dug that would actually measure more than 10 inches deep. Lots of junk in some mighty deep holes. But only rarely has there been a coin.

In wide open areas such as farm fields, I'll hunt with my 9-inch concentric at 3 kHz as it is a silver and copper coin killer. When I get in around where the buildings were and need more separation, I slip on the 6-inch DD. HH Randy

 

[Mtnmn]

I believe a lot of it just depends on what coils work best for your ground. In my area the ML concentric coil does okay, whereas the DD's seem to do a little better. The difference isn't huge, but it is definitely in the favor of the latter. It is probably because my ground is fairly mineralized, unlike the mild ground found found in the midwest and some other areas of the country. My 6" DD coil will always split duty with the 10.5" DD coil because of using the 6" coil for the smaller trashier spots and the 10.5" coil in the larger more open areas as both do equally well for their intended purpose. The 10.5" DD coil may only get about an extra inch of depth over the 9" stock coil (in my ground), but over time that can result in finding quite a few additional coins.

 

[Blank Planet]

have used small coils in hunted out spots with no trash and found the odd nice coin that for some reason the larger coils just havnt seen just sitting there all by its lonesome no trash around, very strange but very true.

BP

 

[Bill in Oregon]

The fact that the smaller HF DD coil will be very useful in the gold formations in my neighborhood, as well as its ability to separate trash, makes it No. 1 on my must-have accessory list.

 

[EOS]

Use the WOT for fields as it cover a large area quikly.
I favor the no-no coil 12x13 HF for coverage and also for its ability
to pick up small hammered coins and relics.

My 10.5 MF I tend to use less often. Its a fine coil but its not
waterproof, and not very good balanced.

The 6"DD is a splendid little coil. And a favorite in trashy sites.
If I have to pick two of this coils, it would be 6"DD and WOT.

Mike