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Just a thought or two regarding coil size selection.

April 20, 2019 09:59AM avatar
Quote
Kickindirt
Man I thought you were just messing with me. Most of my sites are pretty high ground mineralization. Old gold mining towns or Railroad towns.
Dealing with higher mineralization is one challenge, and a problem with larger-size search coils, as George also pointed out elsewhere, is that they see more ground and therefore have to deal with more ground mineral signal or noise to filter out an pass along a target signal.

The other point you referred to, that is hunting many Ghost Towns, especially a lot of active Railroad Town sites, you are also dealing with more discarded trash, and a bulk of that metal debris is ferrous-based junk such as iron nails, cut wire, bolts, washers, cast iron stove parts and other pieces from bigger iron objects, and man's biggest annoyance ... rusty tin and small size pieces of decayed tin.

In those conditions, a smaller-size search coil is almost always going to work to your advantages over a standard size or larger-than-standard size coil. Maybe instead of 'standard' size, since so many detectors these days come with a big ol' 11" DD coil, I should just refer to what was a standard-size coil of about 8" diameter.


Quote
Kickindirt
Funny thing is the coils I seem to do the best with are the 9x5" or the 9" on my XP.
Those size coils can work well, for many site conditions. And it really depends upon the circuitry design and performance of the particular model the coil is mounted to. But if memory serves me correctly, I know you have had several makes and models that also offered a smaller-size search coil, but you've stated a time or two that you didn't care for them because they were too small for searching a larger-size area like a ghost town, etc.

You're not alone in that group as I have heard that time and time again through the years where someone liked their 8" or 9" or comparable-size elliptical coil or even a 10" or 11" coil to the smaller-size coils that I prefer. But I have also heard from a greater number of people who finally worked up the patience to hunt slowly-and-methodically while using a smaller coil and, Shazam! They made some good finds in places they had hunted quite a bit and didn't think much was left. Most ended up using a smaller coil almost full-time, or more often, or at least kept one handy in their gear, but also switched from a bigger coil to more of a mid-size or medium coil.


Quote
Kickindirt
My favorite Tesoro coil has always been the 9x8. Only cause it seemed to do the best of everything.
Yes, the 8X9 Concentric, which performs almost identically to the round 8" Concentric, is a good coil for many applications and can do reasonably well in a lot of sites, when compared with other 'standard' coils on other makes and models. The 8X9 Concentric easily out-performs just about any DD coil on most of the Tesoro's I have seen. And if hunting a typical sports field or wide-open grassy park area out in the middle and away from the trashier 'picnic' areas, it can be a very good choice on a Tesoro.

But as good as it can be, once you move into a trashier location, especially with more ferrous debris, the benefits of a good-working smaller coil will be to you advantage.


Quote
Kickindirt
Thanks. Interesting stuff for sure. Here I thought I was asking kind of a dumb or seemingly obvious question. Always here everyone talk bigger is better.
It will be a good topic. And regardless of what some forum posters say, when it comes to search coil selection I do NOT believe Bigger is Better. Bigger coils have their place, mainly for searching for bigger objects, but results afield have proven to me that, in the long run, Smaller-size coils are Better.

Just my opinions,

Monte

"Your EYES ... the only 100% accurate form of Discrimination!"

Stinkwater Wells Trading Post
Metal Detector Evaluations and Product Reviews
monte@ahrps.org ... or ... monte@stinkwaterwells.com
503-481-8147
Fisher:(2), Nokta-Makro:(4), Teknetics:(1), Tesoro:(4), White's:(1)
Killer B's 'Hornet' and White's Pro Star
Note: Detectors are listed alphabetically by Brand. Models are chosen based on search site conditions.
*** All working well today to make memories for tomorrow. ***
Subject Author Views Posted

Important Topic by George: Deep coin shooting with a concentric coil???

glabelle 158 April 16, 2019 06:50AM

Related Reference if you're interested -

Rich (Utah) 64 April 22, 2019 11:47PM

Related Reference of interest? Well, I'm not, and I don't mind commenting on it, either.

Monte 64 April 23, 2019 07:55PM

Coils and Coins -

Rich (Utah) 45 April 23, 2019 08:46PM

Re: Related Reference if you're interested -

glabelle 50 April 23, 2019 07:11AM

Coil Sizes and Depth on Coins -

Rich (Utah) 41 April 23, 2019 08:40PM

Re: Coil Sizes and Depth on Coins -

glabelle 34 April 23, 2019 09:37PM

Coil Sizes and Depth on Coins -

Rich (Utah) 35 April 23, 2019 09:44PM

Re: Related Reference if you're interested -

OregonGregg 52 April 23, 2019 05:45AM

Re: Related Reference if you're interested -

Rich (Utah) 33 April 23, 2019 08:54PM

Pardon me George and others, but this is a great topic.

Monte 96 April 19, 2019 10:35AM

George, this is a great topic. Question for Harold,ILL

Rich (Utah) 61 April 19, 2019 05:45PM

Comments for Rich (Utah) from Monte.

Monte 63 April 20, 2019 08:40AM

What is DEEP ? - Some Detecting Options

Rich (Utah) 59 April 20, 2019 07:43PM

Re: What is DEEP ? - Some Detecting Options reply Rich Attachments

Kickindirt 49 April 20, 2019 09:12PM

Re: What is DEEP ? - Some Detecting Options

OregonGregg 49 April 20, 2019 08:06PM

Re: What is DEEP ? - Some Detecting Options

Rich (Utah) 43 April 20, 2019 09:22PM

Re: What is DEEP ? - Some Detecting Options Attachments

OregonGregg 43 April 20, 2019 09:35PM

Re: Pardon me George and others, but this is a great topic.

glabelle 50 April 19, 2019 04:43PM

George, I'll respond to your 5-points.

Monte 54 April 20, 2019 05:42AM

In a nutshell . . . . .

Rich (Utah) 41 April 19, 2019 07:48PM

Re: In a nutshell . . . . .

glabelle 55 April 19, 2019 08:42PM

Preferences -

Rich (Utah) 38 April 19, 2019 11:48PM

A few last comments on coils and absolute depth Attachments

glabelle 50 April 20, 2019 09:24AM

George, a simple reason I described the 'cone.'

Monte 54 April 20, 2019 03:59PM

Adjacency - And why is that still there thinking

Rich (Utah) 44 April 20, 2019 06:13PM

Re: Adjacency - And why is that still there thinking Great Post Richthumbs up

Druid 31 April 21, 2019 09:49AM

Re: A few last comments on coils and absolute depth

jmaryt 34 April 20, 2019 10:28AM

Re: Deep coin shooting with a concentric coil???

Kickindirt 73 April 16, 2019 06:46PM

Re: Deep coin shooting with a concentric coil???

glabelle 68 April 16, 2019 09:57PM

Balancing to ignore the ground?

Monte 52 April 20, 2019 09:22AM

Re: Balancing to ignore the ground?

glabelle 40 April 20, 2019 09:34AM

Re: Deep coin shooting with a concentric coil???

Kickindirt 58 April 17, 2019 11:05AM

Just a thought or two regarding coil size selection.

Monte 42 April 20, 2019 09:59AM

Re: Deep coin shooting with a concentric coil???

glabelle 57 April 17, 2019 04:13PM

What should I use to look for deep silver dimes?

Rich (Utah) 80 April 16, 2019 10:20PM

Re: What should I use to look for deep silver dimes?

glabelle 62 April 17, 2019 09:21AM

Re: What should I use to look for deep silver dimes?

Harold,ILL. 61 April 17, 2019 08:06AM

Re: What should I use to look for deep silver dimes?

jmaryt 54 April 17, 2019 10:44AM

Re: What should I use to look for deep silver dimes?

Rich (Utah) 63 April 17, 2019 04:12PM



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