Coil advice

[ctcfl]

I have read alot of good info on here about coil types etc., But maybe I'm just not smart enough to put it all together ! Need to know from someone who's "been there done that" I am using an MXT and considering a new coil for depth, I have a couple of large fields that have been productive, but most finds have been fairly deep, (7-9 inches) Wold a large coil TRULY give me much more on depth to warrant the big price tag?

Thanks,
Chris

 

[Kentucky Kache]

The answer is yes. I've never used the MXT, but I use a Classic ID with a 15" coil and it makes a world of difference from the standard 8" coil. Go for it.

 

[Sandman]

Everything we want and need seems to cost more money. The larger coil will definitely get more depth and a DD type coil will also get more coverage at the bottom so overlapping isn't as important. A pic is worth a thousand words so here are two pics.

Good Luck,
Sandman

 

[thompy]

a big coil also see's more ground minerals, you may have to back off on the sensitivity

 

[vondrewvious]

A coil is basically an antenna. You pick up more with a bigger one. I had an 18" excelerator on a sovereign and i would dig a soda can at 2'. So don't go to big is my advice.

 

[Lowbatts]

Seems somewhere in the 10-12 inch diameter for a coil might be best for combination depth and coverage in open field, less trashy areas. Nice coverage so successive swings get good coverage and not too weighty or overbearing on the fatigue side of things.

 

[Sandman]

a big coil also see's more ground minerals, you may have to back off on the sensitivity

Great follow up Trompy! I'd forgotten to mention the extra minerals the larger coil would see.

Thanx,
Sandman

 

[ctcfl]

Thanks for all the good advice ! Looks like I'll be getting a new coil...

 

[Tom_in_CA]

yes, larger coils go deeper and cover more ground. But there is a "point of diminishing returns" on coin sized objects. At some point of increasingly larger coils, you will only see large objects deeper, not coin-sized objects deeper. In fact, there would even come a time in increasing coil sizes where you would not pick up a coin at all.

The usual point at which a coil ceases to get coins deeper, is about 9 to 12-ish inches, depending on the brand, model, etc...

And as pointed out, there are intrinsic drawbacks with larger coils too: poor pinpointing, more masking, fishier reactions in minerals that may cause you to need to drop your sens. (since it is "seeing" more ground), etc...