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Have my 12x10, short test garden results

wpruden

New member
I received my 12x10 sef coil today and went to my test garden and let me say this first, that I have only used the 8" bbs coil on my sovereign before so you know the comparison.
1. The 12x10 is very much more stable than my 8" coil.
2. 12x10 is a very hot coil! I had a concern that I wouldn't be able to get close to small trees (due to the V section) 4" in diameter and less to get those coins, but the V section is hot on the surface any way, further field testing needs to be done in that area.
3. coins on edge with depth I can pick up more easily. some I couldn't pick up no more due to some type of masking. yet I picked up other coins in my garden that the 8" coil did not see at all
4. On depth I could pick out one of my dimes with sensitivity at lowest setting and in auto.
5. Pinpointing: I will need more time somewhat due to the coil being super hot! Like that V section I suppose on targets with depth the hotness will weaken and then use the center line.
Overall on my test garden the 10x12 is deep and will grab those coins on edge more plus at better depth than my 8" coil.
BUT as for those trashy areas I'm not so sure on separation as I now cannot see some targets due to some type of masking.
I made my test garden several years ago with little knowledge at the time, (and did not want to move the coins) so yes it turns out to be more realistic and challenging.
The improvements over the 8" coil: super deep, very stable in higher mineral and more stable than my 8" when approaching electro mechanical fields.
Grabs coins on edge and at depth. I've read the wot does the same with coins on edge. But thats about it.
I will say the 12x10 is smaller than what I expexcted. Smile Critterhunter!!!!

Like I said pinpointing I want to do some actual field testing as I could'nt get bthe results I wanted due to my test garden set up.
As far as separation in my test garden due to the lay out separation was not as good as the 8"fbs coil.
I will give more details on this after actual field results.

Yes, I'm pleased with this coil, being so hot and to be this stable is great.
 
I could not do a silent search with threshold turned down all the way. It just controls the pitch. Is this normal? I will call kellyco tomorrow.
Not a big deal since the threshold sound is key on deep targets.
 
Printing your thread out to read over a smoke. Will respond later. I'm looking foward to reading it but I've been sitting on this computer too long.
 
Good info, thanks! More stabile than your 8"? I've heard these coils run smoother than even much smaller coils but it's good to hear you've found that compared to the 8" as well. Which 8" do you have, because some are better than others. I think the old coinsearch coil is liked the most, with the S-8 or new 8" Minelab being as good or a close second. The old 8" BBS Minelab coil is said by most not to be as good. Running smoother and more stabil means you can set the sensitivity higher, which also then means more depth, so you are getting more depth from that and also the larger coil size.

While I'm thinking about it, I've already read that these SEF coils seem to false on iron less than other coils as well as getting better seperation than even some smaller coils.

Getting close to trees shouldn't be a problem. If I understand double D coil dynamics right there is a straight detection line going from the tip of the coil to it's tail right down the middle, and on a double D it should be as deep at either end as it is in the center, though these SEF coils are sort'a a combo of the best of both worlds using a hybrid of double D and concentrics, so I don't know if that's still true. From what little testing I've done so far it appears my 15x12 has as much depth at the tip as it does at the center. So long as you can wiggle the tip up against a tree I don't think you would have less depth than it would have at the center but I could be wrong. Try lifting the coil over a coin on the ground and sweeping further away until you can just still get a proper ID out of the target. Now move the coil so that just it's tip is over the coin at the same height and see if you still can get a good ID. If you can then it's just as deep at the tip. That's one of the big advantages of double Ds over concentrics, they go just as deep across the entire length of the coil from tip to tail so you are less likely to miss targets while not having to overlap your sweeps as much as a concentric. Maybe somebody else will chime in on what they've found these SEF coils to do in the field on this.

I've also heard these SEF coils seem to love unmasking coins on edge at depth that other coils missed. I've also heard they even unmask shallow coins that other coils missed that were either on edge or had iron or other trash in the hole or nearby. Some remarked they couldn't believe they missed those shallow coins with other coils. As far as seperation goes, you have to remember that the 8" coils have an excellent reputation at seperating targets better than any larger coil, not just the SEFs. In fact, some think an 8" is so good that they don't need a 5" coil like the S-5. I wanted the smallest coil for max seperation in real trashy areas so I bought an S-5. An 8" would be too similar to me to my 10". Smallest is still going to seperate best. All that being said, I've read many say the 12x10 and even the 15x12 seperate better than other larger coils and even a few say better than the stock FBS or BBS coils, though I wouldn't expect that. So long as it's close to them in ability I'm surprised at real happy. Did you try sweeping those targets from other directions? Double D coils prefer to look "beyond" a piece of trash to a coin over the trash target's width and not it's length. In other words, if the detection line of the coil is at a 90 degree angle to the length of the trash it will have a harder time than if the detection signal was in line or parallel to the length of the trash. See my S-5 Mask Testing thread for more info on that. All that being said, I've still read that the SEF coils seem to unmask coins that even smaller coils didn't for one reason or another. I'd mark that up to being the different magnetic field shape they are putting in the ground being a sort of hybrid coil. Maybe the field is able to hit coins that a more "normal" double D round coil field has problems with. For that reason alone you'll find coins with one coil versus another, but there is nothing like an SEF so maybe there are more of those coins laying around out there that other typical round or even oval/egg shaped coils aren't hitting right. So far as I know none of those odd shaped coils are the sort of cross between two worlds that the SEF is.

I used Kered's pinpointing method of walking the coil backwards while wiggling it until you just lose the target. You'll find it's right at the bottom of the "V" on the tip of the coil with this method. I never used this method like others do with the 10" coil and others but I plan to make it routine with my 15x12. I tried my normal method of just hearing where the target seemed to be loudest from two directions and marking that by where the center of the coil was but the coil is so hot (which is good!) that it's got a much larger area where that happens. I'm not sure if a coin at extreme depth will need the center of the coil to detect it (see above) but I wouldn't think so?

That coil may be smaller than you expected but many say it's deeper than the 10.5" Explorer coil or even the 11" Pro Coil, so don't worry about that. But, like I said, I'm glad I went with the 15x12 because that's in relation to my 10" coil. The 12x10 seems perfect for you stepping up from the 8". Remember too that these coils hold their width over more of the surface area than a round coil, so even a bigger round coil (like say a 12.5") only is wider at the very center in a small spot if I'm thinking right.

You got me to thinking with the stability in higher minerals remark...I want to try mine at a few really bad spots and see if it handles the ground better than my 10". I hear they will, but if not I'll try my S-5 since it's seeing less ground. It's not that the 10" won't pull good signals, it's just that sensitivity has to be lower in these few rare spots. Perhaps I can crank it higher with the SEF.

Good report and keep us informed!
 
I just came in from the field and I will say that the pinpointing is very good, more so than I expected!

Oh one thing I did I had a weak battery in my detector, so that was the issue with my threshold quick change of batteries and all settled out! MY FAULT for rushing to the test garden.

This 12x10 ROCKS!!!!

A larger coil, that is more stable than my 8"bbs non slimline version. sharpe separation and last but not least deeper by size and higher sensitivity settings! You can't beat that! Trust me I've read post where other did not care for this coil but I've found plenty of deep coins in the woods with that coil the deepest being 11" and many coins in the 8" range.

The coil sounds are very rich as I was out again today only in the field listening to clarity of all targets.SUPER TONES! CRYSTAL CLEAR!

It should be a SUPER SPRING.

Even the explorer guys say its super. Over 90% of the explorer guys say its better than the 11" Pro coil. That its deeper and like I said has better clarity on tones, super clear!

This sef coil enhances the detectors like nothing ever seen before.

I may have to get that 6x8 coil and quick.

As far as I'm concerned DDs are a thing of the PAST! sorry but that is my opinion.
These coils are super, ITS LIKE HAVING A DETECTOR STEROIDS, only its legal and heatly!!!

Heck, I wonder how they are working on the single frequency units.
I think detecting has just been revolutionized, it is what it is!

later fellow hunters
 
wpruden said:
I just came in from the field and I will say that the pinpointing is very good, more so than I expected!

Oh one thing I did I had a weak battery in my detector, so that was the issue with my threshold quick change of batteries and all settled out! MY FAULT for rushing to the test garden.

This 12x10 ROCKS!!!!

A larger coil, that is more stable than my 8"bbs non slimline version. Sharpe separation and last but not least deeper by size and higher sensitivity settings! You can't beat that!
I will say this about that the 8"bbs coil , Trust me I've read post where other did not care for this coil but I've found plenty of deep coins in the woods with that coil the deepest being 11" and many coins in the 8" range with a strong signal and accurate meter reading. As far as I'm concerned all 8" coils will take a back seat to the 8x6 sef coil if it works like its bigger brothers!

If someone will like to have my 8" BBS non slimline coil its yours for $80.00

Again the 12x10 coil sounds are very rich as I was out again today only in the field listening to clarity of all targets.SUPER TONES! CRYSTAL CLEAR!

It should be a SUPER SPRING.

Even the explorer guys say its super. Over 90% of the explorer guys say its better than the 11" Pro coil. That its deeper and like I said has better clarity on tones, super clear!

This sef coil enhances the detectors like nothing ever seen before.

I may have to get that 6x8 coil and quick.

As far as I'm concerned DDS are a thing of the PAST! sorry but that is my opinion.
These coils are super, ITS LIKE HAVING A DETECTOR ON STEROIDS, only its legal and healthy!!!

Heck, I wonder how they are working on the single frequency units.
I think detecting has just been revolutionized, it is what it is!

later fellow hunters
 
wpruden said:
I just came in from the field and I will say that the pinpointing is very good, more so than I expected!

Oh one thing I did I had a weak battery in my detector, so that was the issue with my threshold quick change of batteries and all settled out! MY FAULT for rushing to the test garden.

This 12x10 ROCKS!!!!

A larger coil, that is more stable than my 8"bbs non slimline version. sharpe separation and last but not least deeper by size and higher sensitivity settings! You can't beat that! Trust me I've read post where other did not care for this coil but I've found plenty of deep coins in the woods with that coil the deepest being 11" and many coins in the 8" range.

The coil sounds are very rich as I was out again today only in the field listening to clarity of all targets.SUPER TONES! CRYSTAL CLEAR!

It should be a SUPER SPRING.

Even the explorer guys say its super. Over 90% of the explorer guys say its better than the 11" Pro coil. That its deeper and like I said has better clarity on tones, super clear!

This sef coil enhances the detectors like nothing ever seen before.

I may have to get that 6x8 coil and quick.

As far as I'm concerned DDs are a thing of the PAST! sorry but that is my opinion.
These coils are super, ITS LIKE HAVING A DETECTOR ON STEROIDS, only its legal and heatly!!!

Heck, I wonder how they are working on the single frequency units.
I think detecting has just been revolutionized, it is what it is!

later fellow hunters
 
Why the double post above? Did you correct something in them? If so let me know and I'll read those as well. Good report once again, thanks! About the tone quality- That's another thing I forgot to mention. Many SEF users think these coils give better and more solid audio to targets even if other coils can easily detect them. I've also heard a few other reports along those lines- that it seems to improve the audio on machines.

Looks like you are a candidate for the 15x12 to max your coin/ring size target depth out and increase your coverage! I'm not sure but I don't think they make a 6x8 for the Sovereign but I think they do over seas. Remember an SEF is not the same coil as something in an oval or other odd shape. This coil has some concentric characteristics as well as other unique traits not seen on any other coil regardless of shape. For that reason I'd expect it to find even more shallow coins that other coil's magnetic fields just aren't hitting right due to trash or being on edge a certain way. That's not to say that other coil designs won't unmask coins that the SEF has some trouble with as well, but by my way of thinking there should be more laying around that haven't been found yet because the SEF will do better at unmasking them, since others probably have been found by typical coil designs. Hope you know what I am trying to say here.

I'm happy about all that but it's just an extra bonus for me. I wanted the best depth on coins/rings in a coil. Better separation, unique unmasking abilities, and any of the other benefits of this coil are just icing on the cake for me. Very glad they are there, though!

I hear on the Whites MXT/M6 these coils don't pinpoint right. The hot spot is in like the 8 o'clock position on the coil or something. Also, you've still got me wondering about whether a real deep coin will only pinpoint in the middle of the coil instead of the bottom of the "V". I guess only testing or field use will figure that out since I haven't heard anything on that yet. Look at it this way, if a deep coin seems to disappear in pinpoint unless in a very tight spot then chances are that spot is directly under the coil, so use the center of the coil as your target to dig the plug.

If, on the other hand, pinpoint seems to show the target over a larger area then that means the coil is seeing it from tip to toe, so then do the reverse walking while wiggling the coil until it just goes away. The target should then be right at the base of the V at the top of the coil. It'll be easy to tell which is which...larger area means use the V. Tight area means use the center of the coil. I still don't know if only the center will hit in pinpoint on a real deep coin. Anybody who finds this out needs to let us know. I've still got about 2 to 3 foot of snow on the ground around here so I probably won't be able to get out for at least another week when and if it melts.

What I'm really jazzed about is the idea that I'll be hunting deeper at some of my old deep coin sites than any other detector on the planet by all rights. About the only thing that might match my depth would be an Explorer or Etrac, and they'd have to be running the 15x12 as well. What's the odds of that at most sites? ALL those old sites are new again for people, even if the coins aren't real deep because of the unique unmasking ability this coil is said to have that is different than other typical coils (not just rounds, but oval and other coils that are still pure double D designs). About the only thing that might get deeper is a PI unit, and the odds of somebody using one of those on land is next to nill.

It will take YEARS for people to cover all the old spots given up on in the past because they felt they were completely worked out. I've read enough reports of the shock and awe this coil put on people when they went back to spots they would have bet money nothing was left at and starting popping coins again. I'm glad, 'cuz I've got some spots I simply love to hunt like visiting an old friend. I can look at those spots with fresh eyes again and look forward to re-working them all over again like the good old days. The GT was already giving me this ability but it makes it even more distinct in possibilities by using this coil. Yea, I can make myself believe anything when I'm excited about it. :biggrin:

Take a picture of that coil with the 8" laying over it lined up with the mounting holes of both coils like I did with my 10". I'm interested in seeing just how they compare to each other. I wish somebody would do that with the WOT and the 15x12 to judge coverage.
 
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