6X8 sef coil question

[robertj298]

I've seen recommendations for this coil for use in trashy areas but I have a hard time understanding how it would be that much better than the stock pro coil. The stock coil is 11 inches and has a narrow beam and the 6X8 coil is 8 inches from the front to back so aren't you really only gaining 3 inches to work in between trash?

 

[Smooth23]

I guess it depends on your definition of trash. To me, trashy areas are where there are multiple targets under the stock coil pretty much everywhere, to some people trashy areas are quite a bit cleaner than my definition. Personally, I need something smaller.

 

[hershey1]

The smaller coil you use will result in less targets under your coil and help pick out the better targets. I use the 6X8 and it is a very good coil however I do not consider it a small coil. In trashy areas I myself like theX-5 by Sun-Ray. JMHO. HH

 

[Goes4ever]

I use the 6x8 in fields where houses were tore down, 12-15 iron hits per swing, dont het much trashier than that....it separates good targets perfectly

 

[robertj298]

I use the 6x8 in fields where houses were tore down, 12-15 iron hits per swing, dont het much trashier than that....it separates good targets perfectly

Thats what I don't understand .It doesn't look like the area of detection is that much smaller than the stock pro coil.

 

[E-Trac-Ohio]

The 6 x 8 coil is a not really considered a small coil - it's a mid sized coil - most double D coils like the 6 x 8 hunt up the middle of the longest part of the coil.
From what I've been told small coils are a max. of 6" in diameter.

After using my 6" Excelerator coil for well over 1000 hrs. in trashy areas ...
I couldn't begin to guess how many great finds ( hundreds ) that I made with this little coil in iron infested areas - finds that other people - including myself walked right over with larger coils !
Just my opinion ... If I could only own one coil - hands down - it would be from 5" to 6" in diameter.

Good Luck !

 

[Cutaplug]

You always have the option of the x-5...

 

[Goes4ever]

I use the 6x8 in fields where houses were tore down, 12-15 iron hits per swing, dont het much trashier than that....it separates good targets perfectly

Thats what I don't understand .It doesn't look like the area of detection is that much smaller than the stock pro coil.

looks are decieving. I have went across areas with the stock coil and got nothing, went over them again with the 6x8 and found a LOT of stuff, it has amazing separation capabilities

 

[Hotcz70]

http://www.findmall.com/read.php?19,1602394,1602394#msg-1602394

Here's another direct link to various field tests I did with numerous coils...and yes...I have used each and every one of the tested coils on my E-trac with the exact same results.
http://www.findmall.com/read.php?19,1055627,1055627#msg-1055627

 

[deeponedge]

I love my 6x8 sef too bud, but Im with you on the coils that are even smaller.
They separate even better than the mid sized coils and still go plenty deep.
I plan on putting more time on my etrac this year too.

 

[looknforgold]

The 6x8 SEF Coil is a mid size Coil, I have the 6x8 and the 6in Excelerator coil.... and here is what I have found, IMO. the 6x8 is deeper and it has better separation compared to the Pro coil and the depth is pretty good as well. the 6in coil is the best at separating targets and the depth is around 5 to 6 inches where I live (Oklahoma) and you can find a lot of Silver that shallow if your in the middle of trash, but expect to cover a very small area as compared to the 6x8..... but, I mostly use TTF when I 'm using my 6 in Coil. the one thing I like about the 6x8 is that I can cover more ground and I can use it for conductive or Ferrous, which is really nice.

As for me, I have been testing a 8' DD Sunray to see if I like it better than the 6x8 Sef Coil, I don't. the sunray hits way too erratic for me and the 6x8 hits a lot smoother, but that's MO.

Best of Luck, looknforgold (DirtDiga)

 

[Prep1957]

You are comparing size to size which is not the real reason most people like the 6X8.The main reason the SEF coils work so good is they preform better in trash and Iron mineralized ground. It is a manufacture construction thing,The stock coil is too sensitive to iron and in some area will not work at all and you dig a lot more iron targets then you do with SEF coils.Like the 10X12 using 6X8 it not uncommon a couple a times a day to find coin leaning on or resting within one inch of iron object that Minelab hunters using pro coil and myself complete missed.It was an accident that I bought this coil,I bought it to hunt NC beaches on vacation to use in surf and pinpoint to scoop better.After vacation I was to lazy to take off 6X8 and went to local very hunted park that I had hunted for 35 years and had found a lot of coins with Pro Coil when I bought my first Minelab.Hunted 6 hours with 6X8 found over 40 coins 11 silver,several Barber Quarters all were found within 16 inches of 100 foot length of 1840 park sidewalk.I called my boss went on vacation for a week and re-hunted all my spots again before anyone else found out about this coil,and ordered a 10x12.That was 3 years ago it only comes off for cleaning.I also have used it underwater for about 300 hours no problem.

 

[midlifecrisis]

The "width" of the beam is a function of the width of the coil. A smaller diameter will produce a narrower beam thus separating good from bad somewhat better as the coil is moved from left to right. One advantage of the 6 X 8 is that it is narrower across its width than it it is long so the beam is narrower than an 8 inch diameter would be. The same principle applies to elliptical coils.

 

[ryanchappell]

3 inches makes a huge difference. You would not think so comparing the two coils, just looking at them, or comparing the number 8 to the number 11, but 11 is 37% bigger.

It is the perfect compromise between depth and separation. You miss some targets that are deep that the 11" would find in clean soil, but you have less targets under the coil at a time, which is what you want in a trash rich environment.

This is an illustration of a Whites DF, but I think it illustrates the difference that two DD coils would have on a VLF machine.

I like this image it illustrates the difference between dd and concentric.

 

[robertj298]

Actually the image of the the graph showing the difference between the concentric and dd coil isn't accurate. The coverage of the dd chill is not as narrow a the illustration shows. The bottlecap in the illustration would actually be in the

 

[Goes4ever]

Actually the image of the the graph showing the difference between the concentric and dd coil isn't accurate. The coverage of the dd chill is not as narrow a the illustration shows. The bottlecap in the illustration would actually be in the

Robert every illustration I have ever seen of a DD coil looks just like above, I have always been told the DD coil is like a blade type signal, do you have any other illustrations you could share with us, since you feel this is not how it is?

 

[ryanchappell]

Actually the image of the the graph showing the difference between the concentric and dd coil isn't accurate. The coverage of the dd chill is not as narrow a the illustration shows. The bottlecap in the illustration would actually be in the

I am sure different DD coils are wider or narrower. I suspect the ones that overlap are narrower.

Every DD coil I have used has a pretty narrow swath, you can tell when you wiggle pinpoint!