Coils

[Low-Boy/LCPM]

What coil are you using for the Impact and what do you like about it?

 

[Monte]

What coil are you using for the Impact and what do you like about it?

You asked "what coil" we are using, as if we only use one coil at all. I'd bet most Impact users make use of at least 2 search coils, but since there are many different site environments and type of targets we want, or amount od debris to deal with, I can make use of each of the search coils I have for my two Nokta's. However, I do have my preferences for different sites as follows:

[size=x-small]►[/size] My #1 favorite search coil is the round, open-frame 7" Concentric that I keep mounted on my most-used Impact. Usually from sometime in March through sometime in October, depending upon the weather and site environment, I spend the bulk of my time Relic Hunting. Those places are usually trashy to very trashy and can have a really dense scattering of nails and other ferrous junk. From that transition period in October through the change-over in March, I'll usually be pitting in more Coin & Jewelry Hunting time in cities and towns. I have found the 7" Con. to be just about the best 'general-purpose' search coil for both Relic Huntuing and Coin Hunting as it handles a lot of tough trash conditions, the Discrimination is great in iron debris, the visual and audio Target ID responses are tighter and more consistent than with most DD coils, and Pinpointing is a snap!

[size=x-small]►[/size] My 2nd / 3rd favorite is the round 5" DD coil. When Relic Hunting around very dense weeds, sagebrush, fallen-down rock structures or very dense debris of building rubble, I found the 5" DD to provide me exceptional performance, especially in dense iron nail conditions where small or very small coins and other desirables can be in the mix. Also, I use it as a trade-off for some urban Coin & Jewelry Hunting in tot-lots were there is a lot of metal structures to be dealt with since I can work it closer and in-between most of the offending equipment.

[size=x-small]►[/size] A very close #3 / #2 favorite, since they are basically tied for an important coil to put to use, is the new open-frame 5X9½ DD which I keep mounted on my 2nd Nokta Impact. Honestly, it is a tough decision for me to make as to which of these two coils, the 5" DD or 5X9½ DD, I wanted to keep mounted on my other Impact. I definitely use the 7" Concentric the most, by far, but I like the mid-sized 5X9½ DD in more open sites for slightly better coverage on the side-to-side sweep when iron nails are the primary pieces of trash I encounter.

[size=x-small]►[/size] Coming in 4th that I use is the 4X7½ DD. When I am mainly working tot-lots or other playground / recreation sites and dealing with metal structures and more confined spaces, this is my go-to search coil when I opt for anything other than my 7" Concentric for chasing urban Coins & Jewelry.

[size=x-small]►[/size] My 5th coil-of-choice is, surprisingly, the 14X15 DD which I know isn't what most 'average' Hobbyists would choose. But it fits my needs and wants very well because I mainly hunt very dense iron littered sites with the 7" Concentric and 5" DD coils, and low-to-moderate trash locations with the 5X9½ DD. Other than those needs, I do get calls to do 'contract searches' and the lost or buried objects are often modest to larger-size objects or containers. It's also a handy coil for wide-open spaces with minimal targets and it provides me with both coverage and attainable depth of detection.

[size=x-small]►[/size] Finally my 6th coil of choice is the 'standard' 7X11 DD. Again, if I am after larger-size objects, hunting a wide-open area with minimal targets, or trying to get coverage and/or depth, the big coils handles in. When 90% of the detecting I do is in moderate, heavy or very dense debris areas that have a lot of closely-spaced iron nails, rusty tin and other ferrous trash, the 4X7½, 5" and 7" coils can handle all those needs [size=small](in reverse order as listed here)[/size], and for almost everything else the new 5X9½ open-frame DD gets the job done just about as well as the 7X11 but it's lighter and nicely balanced.

The Impact gives as a choice of 12 search modes, so a 'favorite' will differ among those using the Impact. There are a lot of adjustment functions for each mode, and no doubt we are all going to pick and choose the settings we prefer for the sites we usually hunt. And with the excellent selection of search coils Nokta makes for the Impact [size=small](4X7½ DD, 5" DD, 7" Concentric, 5X9½ DD, 7X11 DD and 14X15 DD)[/size] there's no doubt that many of us will have differing opinions of what might work best for our needs.

I'd still guess, however, that once anyone gets some hunt-time in with the 7" Concentric coil it will be at or near the top of the favorite pick.

Monte

 

[Tom Slick]

Monte has explained each coil above. I just use them in a different order than Monte and he being a much better typist than me, here's my order ranking.

#1 is the 7" Concentric - Great all around coil for everything from iron infested ghost town sites, home lots, to parks and schools.

#2 use is the 4 x 7" DD for the absolute trashiest sites like nail beds and pulltab/bottle cap picnic table areas.

#3 is the 5 x 9.5" DD was my main go to coil before the 7" con. was released. Now I'll use it in heavy mineralized soil if needed.

# 4 is the 7 x 11" Stock coil which I use at the beach and other large, open areas that have few targets like the fringes of ghost towns.

 

[GlenOK]

4 x7" is my favorite. Great depth and ability to work in trashy areas is awesome.

 

[Monte]

If you were in some of the nastiest iron nail sites we hunt where smaller-size targets might be found, such as silver half-dimes, then I bet you would put the 5" round DD coil as your #2A coil and slide the 4X7½ DD to the #2B position. Otherwise, the 7" Concentric is absolutely my most-used Impact coil I keep on my first production Impact, and the new 5X9½ DD open-frame coil is on my newer replacement Impact. It's one very useful coil for just a bit more coverage and a 'different look' at a site, especially when it gets a little more open and not quite as littered.

 

[D&P-OR]

Monte------Is the 7" concentric available for the FORS Relic?

If you were in some of the nastiest iron nail sites we hunt where smaller-size targets might be found, such as silver half-dimes, then I bet you would put the 5" round DD coil as your #2A coil and slide the 4X7½ DD to the #2B position. Otherwise, the 7" Concentric is absolutely my most-used Impact coil I keep on my first production Impact, and the new 5X9½ DD open-frame coil is on my newer replacement Impact. It's one very useful coil for just a bit more coverage and a 'different look' at a site, especially when it gets a little more open and not quite as littered.

 

[GlenOK]

I must say Monte that I haven’t used the 7” concentric coil on the Impact. Planning on getting one , but not yet. The 4 x 7” is the only small coil I’ve tried on it. I should have worded it different. Just trying to say that I really like the 4 x 7”. Hoping to get more coils soon. Thanks for the info.

 

[Low-Boy/LCPM]

Very interesting to get your input on the round coil...been years since I have used one but worth a try...I have one area I have hunted for years and is really hard to find anything..But I" try the coil in deep mode and see if it finds me a relic or two...Thanks for the info

 

[Monte]

Sadly, at this point, I have to say it isn't to my knowledge, but you and I and a whole bunch of other people I personally know or hear from wish Nokta would make the 7" Concentric coil for the FORS CoRe and FORS Relic models.

We see it in a lot of Forum posts, where CoRe and Relic owners & users have asked this very question, and I believe it is one that everyone might just direct to Dilek at Nokta Detectors. She's the one 'in-the-know' with what Nokta is working on, and they do listen to consumers better than any other manufacturer I know. As busy as Dilek is with all the tasks on her shoulders already, she still manages to monitor the pulse of what's happening with the products she represents. Maybe if enough of us, the end consumers who use the Relic and CoRe models, were to e-mail a note with our wishes for a 7" Concentric coil for these two devices, she/they might feel inspired enough to engineer up the innards of a 7" Concentric to satisfy our wants and needs?

They have an excellent size and shape physical package for the 7" Concentric coil, and it works wonderfully on the Impact, or the one for the Makro Racer & Racer 2, and I could guarantee two quick sales, one of each, to fully equip my CoRe team and Relic team. I know that with Friday's break in our fall rainy weather I'll be taking my Impact w/7" Concentric to get out and have some fun. It's Coin Hunting season for the most part now, and I'll have a CoRe and Relic along with me, also. They might get the first grab at a site, IF they had a 7" Concentric mounted because it is proving to be a very excellent, general-purpose search coil.

Opinions and Wishes are free,

Monte

[size=small]Opinion: While there are some very good DD coils, a good Concentric coil can provide the different & improved performance afield many of us really enjoy.

Wish: To hear an announcement come out of Nokta Detectors that a 7" Concentric coil is going to be in production soon for the FORS series CoRe & Relic devices![/size]