what numbers on the X-70 GB are considered high mineralization?

[Goes4ever]

I keep seeing people here say the DD coils work best in ground that is highly mineralized, what would the ground balance numbers be if it were high?
Where I hunt my x-70 GB anywhere between 21-50's what is that considered?

 

[Digger]

and keep in mind this is not scientific....... but an honest approach trying different coils in different soils.......... If I can properly GB my X-70 with a GB number of 28 or higher (using a concentric coil), I feel confident the concentric coil will perform well. However, if the GB number is less than 28, I've found using a DD coil will handle the mineralization (at that site) better. JMHO HH Randy

 

[Goes4ever]

so the LOWER the number you GB at the higher he mineralization? am I understanding you correct? what about when I hunt farm fields where homesteads used to be and it is very high iron, would the DD perform better there?

 

[Digger]

The numbers you see when you GB your detector are not directly related to the mineralization of the soil. They are actually representative of how magnetic or conductive the ground is, and is referred to as the Ground Phase relationship. With that said, however, you will find that the lower the number required to properly ground balance the X-Terra, the higher the mineralization typically is. So without over-analyzing, one can bet that highly mineralized soil will end up with a lower Ground Phase setting than moderate or lightly mineralized soil.

Here is the link to an excellent post by BarnacleBill, concerning Ground Balance settings and what ground phase represents. http://www.findmall.com/read.php?55,574329,574329#msg-574329


When you are hunting old farm fields and homesteads, try to find a spot away from the building sites to balance the detector. Then let that GB setting carry over into where you are wanting to hunt. I hunt old farmsites a lot. And I've found that, in open fields, the mineralization levels don't change as much as in yards, parks etc. You will find an area where there is a large concentration of buried iron objects may skew your GB readings. (magnetic and conductive challenges) But all in all, I've found it more effective to balance the detector "outside the fence line", and use that setting for the actual field hunt. JMHO Randy HH

 

[Monte]

I keep seeing people here say the DD coils work best in ground that is highly mineralized, what would the ground balance numbers be if it were high?

I like some DD coils, but they are not always the answer. I generally hunt with a smaller than stock coil, and prefer a round, concentric coil most of the time.

Where I hunt my x-70 GB anywhere between 21-50's what is that considered?

With an X-Terra 70 I consider a Ground balance Reference Number in that range to suggest lower to moderate ground. The lower the number, the higher the ground mineralization.

here's a post I offered up[ a couple of years ago that might be of interest.

http://www.findmall.com/read.php?55,356446,357270#msg-357270

Monte