Groundfisherman
New member
A few weeks ago I got a new 10" x 14" Power DD coil for my GTI 2500.
It came with the 5 x 10" coil, and I have felt that it gave me a more careful analysis of the composition of what the machine was seeing than the sock 9.5" imaging coil. It seems I've read that the depth capability of the little elliptical coil is very limited.
Today I worked a park on the west side of Gary with the new 10" x 14" coil. The soil SEEMS to be simple and ought to provide an excellent environment for great depth seeing for the 2500. It appears to be black organic soil mixed with sand.
Maybe 2 years ago, I worked three shelter sites in that park fairly thoroughly with the stock 9.5 coil. I got a BUNCH of coins, lots of quarters. It seems like many of them were fairly deep -- 6" to 8" or so.
Today I worked one of those 3 shelter site areas and found relatively few coins. I think the deepest coin wasn't over maybe 4 or 5" deep. I used zero discrimination at a sensitivity setting of 10.
Several times I switched to the All Metal Mode, fast track. That mode provides a benefit that help overcome the disadvantage of not having imaging to show target size. I think I could get a fair idea of size by noting the start and drop-off sound moving across the target.
In the Discriminate mode, I tried the pinpoint button. At first I thought that that little circle with the lines through it in the middle of the coil was where the focus where depth was determined. I tested my theory with a penny I dropped on the ground and found I was wrong. It appears the depth reading extends the length of the coil.
Also I found that while holding down the pinpoint button in discrimination, I could zig-zag back until the signal faded, then reverse until it got a solid strong sound. The target was back a bit from the tip -- around where the G in Garrett was. The depth was "fairly" accurate. I pinpoint with the P.I. Periscope pinpointer.
I've been detecting for about 5 years now, and I feel like I've only just begun learning this hobby.
I don't know what to conclude concerning the questionable results for the day. I must have spent maybe 4 or 5 hours working.
One could say I got most of the deep coins over the past two years.
Maybe the conical search pattern isn't so bad -- compared to the straight line. I visualize a series of increasingly smaller concentric circles as you go down, which would leave a lot of ground down deep uncovered with the circular coil. The DD coil should be much better.
But then maybe the slice fades quickly as you go down.
Anybody got any ideas?
It came with the 5 x 10" coil, and I have felt that it gave me a more careful analysis of the composition of what the machine was seeing than the sock 9.5" imaging coil. It seems I've read that the depth capability of the little elliptical coil is very limited.
Today I worked a park on the west side of Gary with the new 10" x 14" coil. The soil SEEMS to be simple and ought to provide an excellent environment for great depth seeing for the 2500. It appears to be black organic soil mixed with sand.
Maybe 2 years ago, I worked three shelter sites in that park fairly thoroughly with the stock 9.5 coil. I got a BUNCH of coins, lots of quarters. It seems like many of them were fairly deep -- 6" to 8" or so.
Today I worked one of those 3 shelter site areas and found relatively few coins. I think the deepest coin wasn't over maybe 4 or 5" deep. I used zero discrimination at a sensitivity setting of 10.
Several times I switched to the All Metal Mode, fast track. That mode provides a benefit that help overcome the disadvantage of not having imaging to show target size. I think I could get a fair idea of size by noting the start and drop-off sound moving across the target.
In the Discriminate mode, I tried the pinpoint button. At first I thought that that little circle with the lines through it in the middle of the coil was where the focus where depth was determined. I tested my theory with a penny I dropped on the ground and found I was wrong. It appears the depth reading extends the length of the coil.
Also I found that while holding down the pinpoint button in discrimination, I could zig-zag back until the signal faded, then reverse until it got a solid strong sound. The target was back a bit from the tip -- around where the G in Garrett was. The depth was "fairly" accurate. I pinpoint with the P.I. Periscope pinpointer.
I've been detecting for about 5 years now, and I feel like I've only just begun learning this hobby.
I don't know what to conclude concerning the questionable results for the day. I must have spent maybe 4 or 5 hours working.
One could say I got most of the deep coins over the past two years.
Maybe the conical search pattern isn't so bad -- compared to the straight line. I visualize a series of increasingly smaller concentric circles as you go down, which would leave a lot of ground down deep uncovered with the circular coil. The DD coil should be much better.
But then maybe the slice fades quickly as you go down.
Anybody got any ideas?