BIG 15” COIL

[Truth]

Is everyone happy with the 15” coil. I’ve buried some targets at 7”-8” and it didn’t hit it at all. Is there a settings that work best with the BIG COIL?

 

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[slider66]

For what detrctor?

 

[Truth]

For what detrctor?

Equinox. I thought I put it in the Equinox forum.

 

[smokeythecat]

You should have hit a 7-8" target, even with the 6" loop. Are you using a factory setting or a tweaked setting? My "junk" machine will do that. Anyway, you might get a tiny bit more depth with the bigger loop but in an iron rich site it will be almost useless as there will be too many targets under the loop at one time.

 

[digger27]

You should have hit a 7-8" target, even with the 6" loop. Are you using a factory setting or a tweaked setting. My "junk" machine will do that. Anyway, you might get a tiny bit more depth with the bigger loop but in an iron rich site it will be almost useless as there will be too many targets under the loop at one time.

The Nox can handle iron infested sites just fine with any coil, I use mine in those kind of sites 99% of the time and with both the standard coil and the sniper mine seems to be able to pick out the higher conductors fairly easily.
Ya just gotta learn the language.
Also here, in an area of the country where most brands and models have trouble getting past 5-6" with accurate ID's the Nox goes deeper by several inches in mineralized devil dirt and massive iron issues.
Hitting a 6-8" target in most conditions should be easy so why you aren't getting there is...odd.
I have done that here with the sniper.

I really don't think the 15" would be any advantage here but I have never used one.
I do have a buddy with a Nox and all the coils so I will have to see if he has noticed any advantage or i might be able to borrow the big coil and see for myself.
I have to believe the thing will be heavier and will knock the balance out of kilter more than even the standard coil.
For the best ergonomics the sniper is the one.

 

[Hawks88]

I agree with digger27.

 

[smokeythecat]

A lot of success or non success has to do with the possibility the machine has been tweaked beyond redemption, and the skill of the operator - for any machine. However, this machine should hit a shallow target like that. Any coil.

 

[CoinHunterAZ]

Yeah, something's amiss. If it was me, I think I'd do a factory re-set. I have dug silver dimes at 9" with the standard 11" coil.

 

[smokeythecat]

Factory reset makes sense.

 

[vferrari]

Truth you aren't using your magic invisible silver dime for those depth tests are you? Really need more info - what were the targets? What mode and settings were you using, especially sensitivity? Did you noise cancel and GB? Could you hit those targets with the 11"?

Also, this "big" coil is a coverage coil not a depth coil. You will gain perhaps an inch or so on the 11" stock because it is a 12x15" elliptical coil. Depth performance is determined primarily by the width dimension (i.e., 12"). The 15" length simply serves to give you more swing coverage.

Nevertheless, regardless of depth, if you can hit the target with the 11", it should hit with the 15" no problem. Depth performance varies greatly with soil conditions, nearby rargets, and of course settings. Not knowing anything about your settings or soil conditions, all I can say is If you can't hit silver in Park 1 with the 15" but can with the 11", you've got a problem. But don't expect it to go inches deeper than the 11", though. Perhaps an inch max.

Regarding thick iron sites, and the 15", separation is determined primarily by recovery speed of the detector and most DD coils exhibit similar separation capability by design, independent of loop area, because the center spine is the active detection region (this is not true of concentric coils). However, edge effects on the loops can create noise and interference in thick target density situations so it is better to eliminate that issue by using a small sniper coil in thick target density situations (or lowering sensitivity). In isolation, the 15" coil seems to do a better job than most big coils picking up on tiny targets, but I definitely would not want to go into a bed of nails situation with that coil.

Speaking of the 6" sniper, it is an excellent coil and pretty deep for its size, but that is primarily driven by the fact that you can run it pretty hot and stable at higher sensitivities that would otherwise cause chatter with the stock 11" and 15" coils. It is a great situational coil for thick junk and tight places (trees, bushes, fence kines, curb strips, playground equipment) but would literally drive me bonkers tiptoeing around in open areas like fields, pastures, and at the beach (unless you couldn't care less about maintaining overlapping swing coverage, in that case knock yourself out playing the lottery).

Bottom line, I like the 15 when coverage is key, 6" in bed o nails or tight situations, but I swing my Goldilocks stock coil 90% of the time because it feels just right.

 

[slider66]

The Nox can handle iron infested sites just fine with any coil, I use mine in those kind of sites 99% of the time and with both the standard coil and the sniper mine seems to be able to pick out the higher conductors fairly easily.
Ya just gotta learn the language.
Also here, in an area of the country where most brands and models have trouble getting past 5-6" with accurate ID's the Nox goes deeper by several inches in mineralized devil dirt and massive iron issues.
Hitting a 6-8" target in most conditions should be easy so why you aren't getting there is...odd.
I have done that here with the sniper.

I really don't think the 15" would be any advantage here but I have never used one.
I do have a buddy with a Nox and all the coils so I will have to see if he has noticed any advantage or i might be able to borrow the big coil and see for myself.
I have to believe the thing will be heavier and will knock the balance out of kilter more than even the standard coil.
For the best ergonomics the sniper is the one.

I agree. I have a 15 inch. I used it about 6 hours and my arm was killing me. The 15 inch definitely throws off the balance. The stock coil is best. I was using it in the water waste to neck deep.

 

[smokeythecat]

"Magic invisible silver dime"? Priceless...

 

[Truth]

Yeah, something's amiss. If it was me, I think I'd do a factory re-set. I have dug silver dimes at 9" with the standard 11" coil.

I factory reset that was the problem. Thanks CoinHunter

 

[Truth]

I agree. I have a 15 inch. I used it about 6 hours and my arm was killing me. The 15 inch definitely throws off the balance. The stock coil is best. I was using it in the water waste to neck deep.

Yeah I like the stock the best

 

[Truth]

Truth you aren't using your magic invisible silver dime for those depth tests are you? Really need more info - what were the targets? What mode and settings were you using, especially sensitivity? Did you noise cancel and GB? Could you hit those targets with the 11"?

Also, this "big" coil is a coverage coil not a depth coil. You will gain perhaps an inch or so on the 11" stock because it is a 12x15" elliptical coil. Depth performance is determined primarily by the width dimension (i.e., 12"). The 15" length simply serves to give you more swing coverage.

Nevertheless, regardless of depth, if you can hit the target with the 11", it should hit with the 15" no problem. Depth performance varies greatly with soil conditions, nearby rargets, and of course settings. Not knowing anything about your settings or soil conditions, all I can say is If you can't hit silver in Park 1 with the 15" but can with the 11", you've got a problem. But don't expect it to go inches deeper than the 11", though. Perhaps an inch max.

Regarding thick iron sites, and the 15", separation is determined primarily by recovery speed of the detector and most DD coils exhibit similar separation capability by design, independent of loop area, because the center spine is the active detection region (this is not true of concentric coils). However, edge effects on the loops can create noise and interference in thick target density situations so it is better to eliminate that issue by using a small sniper coil in thick target density situations (or lowering sensitivity). In isolation, the 15" coil seems to do a better job than most big coils picking up on tiny targets, but I definitely would not want to go into a bed of nails situation with that coil.

Speaking of the 6" sniper, it is an excellent coil and pretty deep for its size, but that is primarily driven by the fact that you can run it pretty hot and stable at higher sensitivities that would otherwise cause chatter with the stock 11" and 15" coils. It is a great situational coil for thick junk and tight places (trees, bushes, fence kines, curb strips, playground equipment) but would literally drive me bonkers tiptoeing around in open areas like fields, pastures, and at the beach (unless you couldn't care less about maintaining overlapping swing coverage, in that case knock yourself out playing the lottery).

Bottom line, I like the 15 when coverage is key, 6" in bed o nails or tight situations, but I swing my Goldilocks stock coil 90% of the time because it feels just right.

V will you run your 15” or 6” at 3 or 4 sensitivity?

 

[vferrari]

V will you run your 15” or 6” at 3 or 4 sensitivity?

If you mean recovery speed vice sensitivity, I run recovery speed at whatever I need to for the conditions at hand. I have had no problem running either of those coil at the default recovery speeds associated with the modes but will occasionally run recovery and sensitivity down a little on the 15" to keep it from being "overdriven" by nearby targets. Six inch I run recovery at default or faster (since I am typically trying to use it in target dense situations) and crank sensitivity for depth if needed unless it gets too chatty or I am "sifting" - trying unmask in iron, where I will run it at 20 or slightly less. You don't need to crank down as hard on sensitivity with the small coil when "sifting". There are no SET settings as far as I'm concerned, my set up is based on the situation, but with Equinox I don't usually have to stray too far if at all from the default settings (except I typically use 0 iron bias) and am mainly playing with sensitivity. BTW - glad the factory reset did the trick. If you include more information along the lines of the questions I asked (i.e., mode/settings, coil, and target type as a minimum), then it helps us folks with trying to diagnose your issue as a detector issue or setup issue. HTH

 

[Truth]

I’m sorry I meant recovery speed I always call it sensitivity for some odd reason. But appreciate you recognizing the and giving great info as usual. You’re amazing smart...a genius in my world

 

[smokeythecat]

Have you figured it out yet?

 

[relicmeister]

I had both coils but sold the big one as I found it awkward, and I didn’t feel it mmmmmmm

 

[CoinHunterAZ]

I'm glad things worked out for you Truth. I've said this before, but I wish Minelab would come out with an 8-9" coil. That one might be the "just right" size.