I can't recall everything i did. I followed your very good directions marked out a area and took the large 11 "coil. detected all directions up down side to side and diagonal.Got coins mixed in with trash.had to turn the sens way back on the 11"coil.. Found several old green Wheaties..Right next to and in holes with pull tabs and assorted junk. Really thought I had cleaned the area. switched coils to the only available 6" coil......Wow..Just thought i had cleaned the area. Started getting deeper coin signals..( Yes you read right "Deeper") The little coil let me hear more coin targets with the trash..Sens at 46 and at times raised up to 48......Found a total of 7 Wheat cents, clad dimes several, zinc cents must nave been 8 9 at least.. Some were on edge (All Variety) coins. These coins were detected at depths of 7 inches and some more. That was with the 6"coil. I then put the 11" coil back on the machine and found two Wheat cents at 9", and one little over 11"......
Sens set at 40........You can as Vlad suggested to me grid with the F75 and find targets you missed, and also targets you would not hear with other detectors. Now one thing I did have a problem with..Round Pull Tabs with the large pull handle still attached..F75 every time read them as if they were a coin....69- to 74 readings..That one I can not explain..They were at depths up to 9 " on all pull tabs like mentioned When removed from the hole and checked for target..they still read like a coin..Maybe they are not aluminum, but some other metal..My thoughts are if it were a seated dime..I would have found it. Bottle caps read in all over..55 to 69 but the feo went up, and the consistency meter never pegs out as a confirmed target when it's a bottle cap...You can also raise coil, either one and get great depth reading on bottle caps..Much more than on coins....15 to16" inches on large DD 11"coil.......So you can pick to dig or not to dig. I am telling you though..watch the feo, and consistency meter and you will never dig a bottle cap...I would also like to point out..This was all Vlads suggestions, and his knowledge of detecting that got me going in the right direction in trash..Without his vast knowledge of how to, and his "Real" understanding of how the F75 circuitry's works I doubt I could have made it work.With all the targets you hear (Like no other machine) you could give up real quick..He guided me well..Also my Uncle knows a thing or two, and he added some of his experience..So thanks Men...With you guys and an Excellent machine(F75) I am having better results than I have ever had..Now all I need is more areas to apply all this stuff..and some old lost Silver sights.I thought it important to add about all the help I had from over the Forum. Vlad spent lots of time. It's guys like him who truly make this forum what it is.."A great place"....