A good place is if a target stay below line 27 ferrous--- likely iron.
Now most times if you are getting a good steady tone and when you pivot 90 degrees and get a good tone--- more than likely you will notice the spot of detection iS unchanged. If it does likely iron.
Now just remember it is possible to get a good target that is close to iron to only produce a 2 way hit--- not a 4 way hit.
And these targets, watch for the following,
As you sweep with a somewhat consistent speed does the target tone in fairly consistently on each and every pass of the coil, if yes great sign of nonferrous target
And while sweeping watch the cursor. Does the cursor seem to stay most of the time above line 28 ferrous. Now while sweeping it can momentarily dip below line 27, but does it tend to stay there-- hang. If the cursor hangs below line 27-- likely iron.
Now I want you to understand most of your detected nonferrous targets will report ferrous readings between 08-25.
And some of the info I provided above could be comsidered advance use-- as far as etrac goes.
But as you use your unit, you will eventually encounter situations ( possible targets) , where this info will have to be applied to make some successful recoveries.
What I'm say is is, sure one can dig the easy stuff pretty easily, but there will be those coins that will challenge the etrac more-- and you too.
And you being aware of this is good--- and down the road you'll be a better user of your detector.
Actually you might even be able to hunt behind another etrac user and find coins say they miss
And a lot of what I talked about above--- the deeper coins, you will see more vs the shallower.
Digging 7" deep coins with etrac in medium mineralized soil or lower is child's play-- compared to many other detectors.
So simple sometimes, i feel like it's cheating.
