Heres the bummer about gold...it can be anywhere...Theres some really great posts on almost every forum about the range of gold and what signal it gives on different machines.
Bottom line is small womens rings are in the foil section of your F70...from the high teens to high 20's...with most 2gr being popular and in 23-26.
a heavier womens wedding band can be in the low 30's smack in the nickle reading, a girls class ring will be right above that in the pulltab reading 36-39ish, a mens wedding band too. A mens class ring will be in the zinc penny area, 60 range, chains and charms can be anywhere, especially chains, which can be very low...So young Jedi, you sort of have to get good at rapid target retrieval...if you commit to dig 1000 zinc pennys and 1000 pulltabs as fast as you can, you will learn a lot. By dig I mean l stab if shallow 3" deep on up signals, with a screwdriver instead of actually digging a hole with a trowel.. you will be amazed at what you learn about pinpointing and targets signals with this excersize. You will also get good at thinking about where gold might be, for instance in a totlot, every foil signal needs to be inspected..why? because mothers take their kids to totlots, and thats what size ring they wear...around BB courts, think about chains, why? cause thats what bb players like to sport...If you get enough targets, the gold just shows up unexpected sometimes..its a matter of covering ground, getting targets and the odds, which you can increase by hunting areas where gold is most likely lost, and THINKING about the location and depth of the signal..ie, "what is this zinc penny doing 6" deep in the middle of the football field?" .read craigslist lost and found section, you will see where most gold rings are lost, and thats just about anywhere!.
Mud