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Some thoughts on the AT Pro and Iron audio

B

Bill_S

Well-known member
I got my AT Pro yesterday and only had an hour or so to use it. I done some air testing and it seems pretty impressive. I took it to a local park and I have to be honest. In the STD mode It is a bottlecap magnet. I went over the same area I have went over with my other detectors and the area lit up with high tone signals. I wondered how I had missed so many coins with the other detectors. I hadn't, It was falsing like crazy on bottlecaps. The other detector had ignored them. Even with iron audio on it would only give a high tone coin sound with no iron signal mixed in. Every indicator said it was a coin. So I started thinking about the iron audio feature.

The AT Pro is supposed to help you ID a bottlecap from a coin with a certain sound according to the videos I seen. That sounds like a good idea but most of the places I hunt are not too clean and where there are bottlecaps there are usually pull tabs, can slaw, iron junk, coins, etc. It is not too often that you just have one bottlecap all by itself with nothing else around it. The other thing would be that if you are getting a little iron signal mixed in with what appears to be a good signal, then it could be coin next to some trash and not a bottlecap?

Maybe some of you guys that have been using it will have some tips. I can see that it would be almost impossible to use it in the STD mode in a real trashy area especially if there were bottlecaps or small pieces of steel around because of the falsing. In a cleaner area I am sure it would work good.
 
Hi Bill,

I run the Omega with the 11" DD coil, and I have the same issues you described...this a common trait of DD coils. From other AT Pro comments I have read here, it appears you will get better results on bottle caps in the Pro Mode. If you want to run Standard mode (saturated audio) on the AT Pro, I believe you would get better results with the optional concentric coil (for better bottle cap ID).

HH, Eric
 
Thanks for the info. I have used the Omega (with the 11" DD) in the same area. It will hit on some bottlecaps too but not like this. If the sniper coil is not a DD it would probably do the job in these areas. I did try it in pro mode a little but the audio is something that a person will definately have to learn.
 
I think we will all be better served to hunt area's that are trashy like this with a smaller coil once they're available ..... Targets that are close together will be easier to seperate ........I also check things in All Metal ( Free mode ) and only run the Pro Mode , and then hit the Iron Audio button for futher investigating ..... I'm really not sure why Garrett even included the STD mode .....????? ......The machine is extremely easy to run in Pro Mode .....Jim
 
I would like to see the mode like the 1350 had on it so you could easily toggle between two modes without having to cycle through all of them.
 
I would think they would be a common trash item at park areas where people picnic.
But can understand that at most parks you shouldn't find many of them.

Bottle caps are common at beaches.
Strange ... in as much that most places do not allow glass bottles on the beach.
Most detectors ID them as quarters.
Having the ability to ID them as a bottle cap is one more step toward the perfect beach machine.

However, there is merit to cleaning the beach of them to help others and perhaps yourself on the next trip back.
You might even be saving some kid from a cut foot.

Willee
 
I would think they would be a common trash item at park areas where people picnic.
But can understand that at most parks you shouldn't find many of them.
Click to expand...

Once you get away from the picnic areas they seem to thin out but picnicking is not the only thing that goes on. They have softball and baseball games and other activities where people setup chairs or blankets in other places and drink and throw their bottlecaps around. Just something we have to live with I guess.
 
I think it was over 12" if I remembr right.That leads me to think it should get some awsome depth relic hunting......
 
I do have some tips. Some of the more pesky bottle caps that mimic a quarter is the Bud Lite caps. Not to say that Mike's hard liquor isn't just as bad. Some older real rusty caps show themselves easily. First to get the most out of your iron audio feature you have to use some iron discrimination. Running in zero won't do it. The Pro is so good with iron you can run the iron disc to 40 and be sure not to miss gold. But stick the iron disc between 35 and 40. Now with the iron audio off the caps will still tell you they are there. Unlike most coins the signal will have a short clip as you pass past the cap. You have to listen good but it's there. Coins will be clear with no clip. Also the cap will "hit" harder than a coin at the same depth. (Pro mode). Also working the target the full length of the coil will start to jump to iron at the nose and heel. Also pinpoint the suspected cap (numbers around 78 to 83) Then use the outer winding of the coil and go over the target. If it's a coin it will be a solid coin. If a cap it will iron tone. I'm still getting used to my machine as well. But this may help?
PS: I never use the STD mode so I don't know about it.
 
Thanks for the tips. If it ever warms up enough we can go out and you can show me first hand........:)
 
Kenny ,
I agree that there are certain nuance differences to the tone on coins and on caps ......You will still get that deeper iron tone on the outside edges of the coil in "Zero" mode also ..... I never thought to try the heel and toe of the coil as you suggest ....If this snow ever goes away , I'll give it a shot .....Thanks for the tip ....Jim
 
If I AM HUNTING STD MODE. I TURN UP THE DICS TO 40. I RECHECK IN PROMODE. I DON'T NEED ANY IRON COIN HUNTING. THERE ALOT OF WARNINGS. THE OLDER THICKER PULLABS ARE MY PAIN. THERE ARE WARNING SIGNS. DOES THE SIGNAL BOUNCE? ARE THEY INFACT IRON OR ALUMINUM?
 
The caps that I was having problems with are the ones that come off beer bottles. Not the larger screw caps. Some of them sounded just like a good high tone coin. Some of them the TID did jump around some not much. I dug one that was pretty deep that was completely flat and rusty. That was my first trip out with it and I didnt have a whole lot of time. I am sure once I use it some more and try some of the tips listed here I will be able to tell them apart better.
 
lasergod,
They are aluminum and come in all shapes and sizes and the VID on them is very different from tab to tab ......... They are a pain , but remember if you are picking up pull tabs , you are in the GOLD range also .....It makes it more tollerable !!....Jim
 
I'm still learning too. I've been digging most every good tone above iron. I have dug steel caps. Some I feel are caps but I dig anyway. If I can leave half the caps in the ground then I'll be happy.
 
So U only have an hour or so hunting with the Atpro. The screw type bottle caps are to easy to eliminate in a non trash area for me always seem to read about 75 to 77 . I dig them anyway just to confirm it(chirp chirp). Now the steel bottle caps in a trashy area are to confusing . How long the the cap has been there ,standard mode no chance gotta dig . I thought Bud was the King , but Bud light seems to be in control.
 
Screw caps are the ones that STILL really fool me ....Those gold ones on the Wine bottles ring like SILVER every time !!!....They sound smooth like Silver and all ......In NYC partks they are down a good 6-8 inches so you think that they are OLD , DEEP, Silver .....and they you get to them after all the digging in hard dirt and .......You know the rest !!....Jim
 
Screw caps are the ones that STILL really fool me ....Those gold ones on the Wine bottles ring like SILVER every time !!!....They sound smooth like Silver and all
Click to expand...

Why are those suckers always deep......lol. I can remember digging through 8 inches or so of hard packed gravel by a baseball diamond one time. Probably took me 10 minutes to chisel it out with my screwdriver only to find one of those.....
 
Bill_S said:
Screw caps are the ones that STILL really fool me ....Those gold ones on the Wine bottles ring like SILVER every time !!!....They sound smooth like Silver and all
Click to expand...

Why are those suckers always deep......lol. I can remember digging through 8 inches or so of hard packed gravel by a baseball diamond one time. Probably took me 10 minutes to chisel it out with my screwdriver only to find one of those.....
Click to expand...
U know its all the same u dig down to china for a screw u cap and U R let down and the next signal onyour machine is telling the same . So what the heck . U keep on diiggin because there is going to be a reward for your efforts.Now a reward has a broad meaning:rofl:
 
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