Rusty nail discrimination

[gunwolf]

as we know they sound good one way and some even sound good both ways... most for me have a CO of 43-45 and the FE bounces from the 20's to 34,35. what If I discriminate out the anything FE 34 or 35, am I missing something? I have been trying to listen to the squeal and thunk, and even look for a steady CO number... as I swing I'll get a nice high tone that bounces from 12-45 to 34-44, 45, I'll turn and it will be very similar...and because of the nice solid tone I dig thinking maybe iron and coin are in the hole.. wrong! 10 out of 10 times it's just a rusty nail or rusty small bolt. seems like every ft of this park is littered with nails... I mostly run on auto +3, but have been known to run a hot 28,29 sometimes and I have tried lowering the sensitivity but then I am missing deeper targets. I feel as though I get the high tone falsing from the rusty nails every few feet or so and I can't dig them all, thoughts?

 

[pointer80]

I think most users disc out high 30's to eliminate rusty iron, nails. If you run a very open pattern and high sensitivity in a trashy area like a old park then you are definitely going to get a lot of chatter from your machine.

 

[gunwolf]

I should have said I run both the Bill S. trashy park program and a modified version... still getting beat by the nails. if they were just iron I think they would discriminate out to a null, but with the rust coating they hit high in the CO and some have a great solid tone. others I can tell right away its a nail. I'm afraid if I don't dig the iffy signals I may be missing something. when I hit one of these high tones it reads 12-45 when I hit pinpoint it jumps to 35-45, and I have read where if the CO stays at a constant number and doesn't jump I should dig... well I do, and always get a rusty nail with nothing else in the hole... it's a bit annoying but not the end of the world, just need to know what you other guys think/do...thanks!

 

[kt]

I just dig them for the most part, if there is a repeating fe-co number repeatedly flashing in there that I am interested in. Afraid I might miss something laying near iron.

 

[nge]

I just run 12 line down for iron. If I have that many nails where I'm hunting I use TTF with a small coil and go really slow. When using TTF, I don't care what the FE number is as long as Cond. number stays the same I dig it. rarely get a nail like this.......nge

 

[daddyflea]

I run no higher FE than 25. Try to determine the center of your target without pin point. Go around it and see if it seems to move or if it Squeaks going away from that Center. If it does move just a little or if it Squeaks going away, it will be iron. Some of those Big Head Roofing Nails are going to fool you regardless but with practice, you will start ignoring most of the Iron. If it hits though instead of a Smearing Squeak it is a good target in Iron. 25 FE will cut out a lot of the iron without missing good targets. Another trick is to hunt normal then when you get one of those Iron squeaks slow way down. If it still hits dig. If it goes away ignore it.

 

[gunwolf]

I am most of the time disc out to the 25 line... just yesterday running the trashy park program with goes4evers settings in auto +3...I got a nice tone, 12-44 a bit bouncy but kept coming back... checked it both directions with the same outcome... tone...Thunk . checked it in open screen and basically bounced from that 12-44 to 30-44,45... but that 12-44 kept repeating... I checked it in TTF with the open screen with similar results... low tone with a high tone next to it... I dug and at 4 inches was a 3 inch rust encased nail... rechecked the hole and no reading at all just that nail. around here I very seldom pull iron that isn't encased in red oxide rust! I think the mineralization of the soil around here contributes to the E-tracs falsing.
99.9% of the time that Thunk some say is a good thing, turns out to be a rusty nail... so once I learn to stop digging the tone/thunk I think my rusty nail days will end.
I have tried listening for that sqeal while pulling away, and I just don't hear anything like that. I'll keep listening for it though...thanks for the input daddyflea.

 

[nalc472]

Send me a PM and I will send U one that works great for me

 

[daddyflea]

Send me a PM and I will send U one that works great for me

Pattern or Secret way to tell these Rusty Nails?

 

[nalc472]

pattern. I dont dig rusty nails anymore. Maybe a little skill.

 

[daddyflea]

Yesterday I was in a Nail infested site. Iron falsing was awful. I turned the Fast On to Off. This seemed to make a big difference. My guess is the Sample Rate is greater.