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Field Test: 13" Detech Ultimate coil. Narrowly missed a silver dime grand slam...
- Thread starter Hotcz70
- Start date
Well Bryce, since I really respect your opinion on such matters, I went ahead and ordered one, and its on its way! Haven't been out yet this year...health issues with both our parents and knife orders coming in faster than I can build them now for some reason, so no time.
But... I have some old previously workded sites picked to try out the coil, so maybe I'll chime in after some hours with the coil. If it even only gives an additonal 'one inch' at these sites, I may come home with some old silver for a change!
Knipper
But... I have some old previously workded sites picked to try out the coil, so maybe I'll chime in after some hours with the coil. If it even only gives an additonal 'one inch' at these sites, I may come home with some old silver for a change!
Knipper
LFarthing42
New member
What a nice hunt and thanks for the report. Your pictures are great.
Do you think it separates trash from good targets as well as some of the smaller coils?
Do you think it separates trash from good targets as well as some of the smaller coils?
as good as my small coils...and it shouldn't be expected to BUT it separates incredibly well for a coil of it's size.
It just amazes me at how far some of the bigger coils have evolved when it comes to getting better separation.
The Ultimate is not made for hunting in extreme trash sections but it definitely does an excellent job of nailing the goodies hiding there.
It just amazes me at how far some of the bigger coils have evolved when it comes to getting better separation.
The Ultimate is not made for hunting in extreme trash sections but it definitely does an excellent job of nailing the goodies hiding there.
the fieldtest answered most or at least of some of your general questions.
Time will tell just how good this coil will be but the weight alone...or "lightness" thereof is truly amazing.
If it ends up being "as good" as my 10 x 12 SEF I will be THRILLED because I can hunt at least 50% longer because of the lighter weight and balance I feel.
Time will tell just how good this coil will be but the weight alone...or "lightness" thereof is truly amazing.
If it ends up being "as good" as my 10 x 12 SEF I will be THRILLED because I can hunt at least 50% longer because of the lighter weight and balance I feel.
Critterhunter
New member
Bryce, sorry to hear the weight of the 12x10 on FBS machines is somewhat of an issue. Myself and a few other people weighed a bunch of FBS and BBS coils and I put a chart together a while back to post for comparisons when coil shopping. For some reason the FBS versions of the SEF coils are heavier than the BBS versions. Not sure why. The BBS 12x10 without a coil cover, for example, is lighter than the legendary Sunray S-12 coil, which always was praised for how light it was. You can really save some weight on those SEF coils by ditching the coil cover and using 3 or 4 coats of spray on bed liner on the bottom of the coil. I can't believe how much weight those coil covers are. Even a few ounces makes a difference after a long hunt.
I've really enjoyed reading your tests on various coils over the last few years. The reason why I'm watching your 13" coil tests so closely is I am interested in it's abilities compared to the 12x10, if indeed they do come out with a version of the 13 incher for BBS machines. I'm also watching it because I've got two friends with Explorers and Etracs that I'll probably try to talk into buying the 13" coil if it turns out to be deeper than an SEF down the road. I know it's way too early to probably say one way or another, so I continue to watch with great interest. Thanks again.
I've really enjoyed reading your tests on various coils over the last few years. The reason why I'm watching your 13" coil tests so closely is I am interested in it's abilities compared to the 12x10, if indeed they do come out with a version of the 13 incher for BBS machines. I'm also watching it because I've got two friends with Explorers and Etracs that I'll probably try to talk into buying the 13" coil if it turns out to be deeper than an SEF down the road. I know it's way too early to probably say one way or another, so I continue to watch with great interest. Thanks again.
Orlensin-FL
New member
Have you been able to do any further comparing to the sef 10x12?
nice finds too.
nice finds too.
dippodigger
New member
Really helpful report and thanks for taking the time to do it.
The weight of this coil intrigues me. Do you feel it separates as well as the pro or 10x12 sef?
The weight of this coil intrigues me. Do you feel it separates as well as the pro or 10x12 sef?
Great Republic
Active member
Great hunt Bryce. That coil seems like a keeper. Keep us updated.
Critterhunter
New member
I would expect the 12x10 separates better (maybe I'm wrong...Just a theory or an "educated" stab at a guess) because of it's unique design, while this 13" coil appears to have a more conventional (round) DD coil design that probably wouldn't compress the width of the detection line like an SEF does. So I'm curious what Bryce has to say about the separation abilities of the two coils. I'll be shocked if it separates just as good for those reasons, not to mention the fact that it's 1" bigger length wise and 3" bigger width wide. That's going to be real interesting to read, because perhaps there are properties to that coil's detection field that a conventional DD doesn't have and gives it better separation than one would expect for a coil of that size...Like an SEF does.
But, I mostly await anxiously to hear from Bryce if he is finding this coil is deeper than the 12x10. On the other hand, that *might* depend on if his soil is more mild than mine. The 13" coil might be soaking in too much ground matrix (degrading the target signal) to show improved depth in moderate or heavy soil mineralization...While the 12x10 seems to ride on less ground for me (with it's super sharp detection field width wise) than even a round 10" coil, and thus allows higher sensitivity settings, is more stable, and isn't as prone to washing out the target signals at depth like a bigger coil might in minerals. The field the 12x10 generates not only feels laser like width wise, the entire field also seems less "fuzzy" around the edges than a conventional round DD coil to me, so I would guess it helps it to soak in and receive less of a ground signal that might wash out the target in rougher ground.
For those reasons I found the 15x12, while a great coil, didn't seem to get as much depth as the 12x10 or even the stock 10" coil in my somewhat mineralized soil on coin sized targets. I also found that if I raised the sensitivity to what was max stable (but still VERY stable...well within reason) with the 15x12 it would start degrading the quality of the targets I tested at depth, so something a good bit lower in sensitivity seemed to provide me with more depth or at least better target ID and audio at depth. I would guess the reason being that with too high of a sensitivity setting, even though it was still stable, the 15x12 was lighting up too much ground matrix and the detector was having issues with separating the target signal from the ground matrix it was soaking in. All just my theory, anyway. Could be wrong.
I did, however, find that the 15x12 got deeper than stock in the sand, and my sand tends to be mineralized too, so that has me scratching my head about the above theory when it comes to it's performance on land in my soil.
But, I mostly await anxiously to hear from Bryce if he is finding this coil is deeper than the 12x10. On the other hand, that *might* depend on if his soil is more mild than mine. The 13" coil might be soaking in too much ground matrix (degrading the target signal) to show improved depth in moderate or heavy soil mineralization...While the 12x10 seems to ride on less ground for me (with it's super sharp detection field width wise) than even a round 10" coil, and thus allows higher sensitivity settings, is more stable, and isn't as prone to washing out the target signals at depth like a bigger coil might in minerals. The field the 12x10 generates not only feels laser like width wise, the entire field also seems less "fuzzy" around the edges than a conventional round DD coil to me, so I would guess it helps it to soak in and receive less of a ground signal that might wash out the target in rougher ground.
For those reasons I found the 15x12, while a great coil, didn't seem to get as much depth as the 12x10 or even the stock 10" coil in my somewhat mineralized soil on coin sized targets. I also found that if I raised the sensitivity to what was max stable (but still VERY stable...well within reason) with the 15x12 it would start degrading the quality of the targets I tested at depth, so something a good bit lower in sensitivity seemed to provide me with more depth or at least better target ID and audio at depth. I would guess the reason being that with too high of a sensitivity setting, even though it was still stable, the 15x12 was lighting up too much ground matrix and the detector was having issues with separating the target signal from the ground matrix it was soaking in. All just my theory, anyway. Could be wrong.
I did, however, find that the 15x12 got deeper than stock in the sand, and my sand tends to be mineralized too, so that has me scratching my head about the above theory when it comes to it's performance on land in my soil.