If you notice in my 10" video, that coin is still stuck solid in the side (unless you think I planted it. lol) The thing is, that is a 100% Nickel coin! I'm still shocked it hit nickel like that. I know her better now and will film any deep signals that hit that well. I had just gotten the machine and had no idea about that kind of depth. And 5 minutes later or less, to find the 9" silver coin, just blew me away. (And I love the STL modes soft hits on deeper targets like that.)
On the lower conductors (e.g. zinc coins) they bounce into iron and then hit right, JUST LIKE ON THE E-TRAC (Fe number). That is hard to grasp for new hunters I would think, but the key in a sense is the low intensitiy. when you have appearant depth, all bets are off with the signal and hodograph (within reason). There are intricacies we "understand" but are difficult to communicate.
The 7.5kHz stock coil hits dimes (and silver) VERY well. That 9" quarter sized silver Mark I found would have easily hit at 10", I'm guessing with thing set up optimally, it would go further. My soil is lower moderate in mineralization (I think). I GB at 23-24 or so and often run it negative. Igor suggested for lots more depth to run it -3 to -5 negative! Here is just a perfect example of a strong signal on a deeper dime sized silver coin at 8". I didn't even have the sensitivity opened up. Was running Turbo but I played with the settings before digging. (Don't mean to hijack the thread, but this is interesting. I don't make videos for revenue, no ads, just sharing.) I'm curious what you guys think here, the machine was very stable - I could have run her hotter.
Albert
[video]https://www.youtube.com/watch?v=6X732ZYB8gg[/video]