I know these air tests can be very Subjective but I wanted to try something a little different. I went out in my Driveway and found a spot about two foot wide where there was no signal. There was Iron on each side about a foot from my Coil. I threw down a Nickle since they are harder to detect. I also wanted a Nickle because, unless it hits about 21 or below I don't dig Nickle signals.
I used my SEF 10X12 Coil that I really like and swung over it with Sensitivity set at 6 and Disc set at 80. My depth was about 7 inches with an occasional hit at 8. I then set the Sensitivity a little Higher at 10 and the 7 Inches seemed to be harder to hit with No 8 at all. I then moved Sensitivity up to 15 and lost depth to only 6 inches sometimes 5.
I then put on my Whites 6 X 10 and did the same test. The Whites Coil increased Depth through the Sensitivity range until I hit 15 then I could hit the Nickle at 10 inches regularly.
I did not change the Disc setting I left it at 80.
What did I learn? I believe in my Old site (lots of trash) that I have been hunting. I am using the wrong Coil. I have been using the SEF 10X20 and having good luck with it. This is a large site at about 10 Acres where there was a very large fair held apparently from the 1800s to about 1945. Then a school Yard to about 1957 or 62.
The reason I believe the 6X10 will be better has to do with two things.
1. The 6X10 has a solid bottom instead of the open areas that cause so much of a pain in the Stubble therefore I will be able to run gains higher without getting False blips from hitting the stubble.
2. The large Coil is affected by iron on each side more that the smaller 6X10 whites therefore if there is trash, running with higher gains causes me to miss more than expected. This explains why I am finding more goodies by running a 6 Gain.
I thought this was a very interesting test. I am finding goodies but some things were not making sense and I think I may have it figured out now. I still like my SEF 10X12 but unless the area is very clean it is not going to perform better that my Whites 6X10 because of the separation allowing me to run higher gains and ID targets a little better.
I don't think the slight difference in size even matters as far as ground coverage.
Just my totally unscientific 2 cents
I used my SEF 10X12 Coil that I really like and swung over it with Sensitivity set at 6 and Disc set at 80. My depth was about 7 inches with an occasional hit at 8. I then set the Sensitivity a little Higher at 10 and the 7 Inches seemed to be harder to hit with No 8 at all. I then moved Sensitivity up to 15 and lost depth to only 6 inches sometimes 5.
I then put on my Whites 6 X 10 and did the same test. The Whites Coil increased Depth through the Sensitivity range until I hit 15 then I could hit the Nickle at 10 inches regularly.
I did not change the Disc setting I left it at 80.
What did I learn? I believe in my Old site (lots of trash) that I have been hunting. I am using the wrong Coil. I have been using the SEF 10X20 and having good luck with it. This is a large site at about 10 Acres where there was a very large fair held apparently from the 1800s to about 1945. Then a school Yard to about 1957 or 62.
The reason I believe the 6X10 will be better has to do with two things.
1. The 6X10 has a solid bottom instead of the open areas that cause so much of a pain in the Stubble therefore I will be able to run gains higher without getting False blips from hitting the stubble.
2. The large Coil is affected by iron on each side more that the smaller 6X10 whites therefore if there is trash, running with higher gains causes me to miss more than expected. This explains why I am finding more goodies by running a 6 Gain.
I thought this was a very interesting test. I am finding goodies but some things were not making sense and I think I may have it figured out now. I still like my SEF 10X12 but unless the area is very clean it is not going to perform better that my Whites 6X10 because of the separation allowing me to run higher gains and ID targets a little better.
I don't think the slight difference in size even matters as far as ground coverage.
Just my totally unscientific 2 cents
