Ok Ok it is the truth but not quite like you are thinking. Picked up the 6.5" coil yesterday. I wanted to detect an entrance onto the beach loaded with trash. I would dig a target and there was another target in the hole and another and another. Not only in the hole but along side of the hole. Each hole was a trench and got deeper and deeper because there was always another target in the hole/trench. Some of the holes were 2 times the length of the coil.deep before I ran out of targets. I was out 3 hours and only detected about 25'. The first picture is the trash and the last picture is what I found. All of that digging for 3 pennies and not even a wheat penny. The oldest was a 1970. Well you can see what a goof ball I am. I guess most wouldn't show their mistakes as huge as mine. I just wanted to show the results of 6.5 coil.
It is a good coil and it probably goes maybe 5"?....... Z
It is a good coil and it probably goes maybe 5"?....... Z
When running At mode I run sens @ 45 and thres @ +8 , sens @ 55 and thres @ 7. These settings seem to be my favorites. The threshold is a nice steady hum and I can very easily hear when it has a slight change. I dig slight changes in threshold, most of the time there is no reading on the meter and swinging the coil back and forth I get a repeatable swish or buzz. Many times in the hole there are 2-3 or more targets and almost always never get a reading on the meter until the target is out of the hole. I keep digging in the hole until there is no more swishes or buzzes in the hole. This has become the way I hunt. Hunting this way sure shoots my coin count but I have been getting incredible depths on finding deep coins. This morning I hit a nickel at 1-2" past the length of the 11" coil. I also found a 1946 wheat at about 8". I am saying that the F70 is getting coins at 13" but, but, but it is the first hit or second hit (tin foil, rusty nail or ??) by now I am down 5" or more and the repeatable swish or buzz in the hole is still there and that is what I am after. Sometimes it is foil, rusty nail, wire but a number of times a coin comes out to my surprise @ an incredible 13" plus. Do I think the 11" coil can get 13"? I have no idea but using the way I hunt I am getting those depths.. Thanks for reading .....Z