E-Trac CO - 47 and alum

[monkeys uncle]

Okay you E-Trac experts...last two hunts, swung over a number of tragets (8 or 9) that returned "CO 47" and recovered only 1 clad GW . All the others were alum. cans or round alum lids/tops. Was running Andy s' pattern and followed the "hits" with open Quick Mask to check FE. Did not dig any FE 30's or for that matter anything >FE 26. Am I missing something (?) or is that expected? Is alum always going to outsmart me and the machine? TIA and HH to all!

ETA - Yeah...I'm lazy and hate/refuse to dig "everything".

 

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[SD51]

I know what you mean about a CO of 47, I always expect to uncover a quarter too! One thing to try is determine the size of the target by slowly sweeping over it. The Aluminum can lid will sound-off over a larger area than a quarter and the depth indication won't be correct. Luckily, when the litterbugs threw all the Aluminum pulltabs on the ground they didn't also throw the entire can.

 

[DiamondDan]

Use the old "lifting of the coil" trick.

 

[cudamark]

I don't know of any detector that will I.D. aluminum with any degree of certainty.

 

[monkeys uncle]

I don't know of any detector that will I.D. aluminum with any degree of certainty.

Well...that makes (at least) two of us. Let me know if someone comes up with a machine that does. OHhhhhh...and let's keep it "our" little secret!

 

[malenkai]

The CO number is based not only on the conductivity of the metal, but the size of the target. That is why a large, low conductivity target such as an aluminum can will have the same CO number as a smaller, high conductivity target like a quarter. On that score, a $20 gold piece will ring in at the same place as a clad dime

I think Andy's program is useless, but forgetting that, you can tell by the size, the ring, and the reported depth of the target. Once you get the hang of the E-Trac, you will rarely dig trash unless you want to.

 

[monkeys uncle]

The CO number is based not only on the conductivity of the metal, but the size of the target. That is why a large, low conductivity target such as an aluminum can will have the same CO number as a smaller, high conductivity target like a quarter. On that score, a $20 gold piece will ring in at the same place as a clad dime

I think Andy's program is useless, but forgetting that, you can tell by the size, the ring, and the reported depth of the target. Once you get the hang of the E-Trac, you will rarely dig trash unless you want to.

Does one EVER really "get the hang" of it (E-Trac)? Been swinging one since 2014 and STILL learning. I love it...but, seems like there's always one more trick that's not in my repertoire.

Ohhhh...since you don't like Andy s pattern...can you advise what you use?

 

[cudamark]

Depends on where you're hunting, the ground/water conditions, and what you're trying to find.

 

[marjam]

I still dig aluminum cans. The best indicator that I have found is the depth. If it says it shallow, and you dig and its deeper than indicated, it is always for me a crushed pop can. I dig the can up if I have cut a plug so I won't find it again, and to clear the ground of litter.

You can lift the coil too as someone else already said. That does work, on any questionable target.

 

[mope540]

Use the old "lifting of the coil" trick.

Best trick yet devised. I dig up the obvious alum. cans so they will no longer be a nuisance

 

[E-Trac-Ohio]

With practice you' get better at "sizing" targets before you dig them.
Of course this all depends on the targets depth but ...
Smaller coin size targets like Quarters usually give you a quick on and off hit when you swing over them.
Can sized targets will usually give you a longer dragged out sounding hit.

Hot Wheels will also give real nice CO 47's.
I have a 5 gal. bucket that's half full of them that I thought were going to be Quarters before I dug them !

Good Hunting !

 

[pulltabfelix]

I don't know of any detector that will I.D. aluminum with any degree of certainty.

got fooled today on a Vanquish 440. Forgot to use the lifting sizing trick. It work IF YOU REMEMBER TO USE IT.
But did find a nice 1914 wheat always makes me feel better than getting totally skunked.

 

[Kevvorush]

Does one EVER really "get the hang" of it (E-Trac)? Been swinging one since 2014 and STILL learning. I love it...but, seems like there's always one more trick that's not in my repertoire.

Ohhhh...since you don't like Andy s pattern...can you advise what you use?

I’ve found Diggin4life to be by far the most helpful. It turns out you can run the machine much hotter than most recommendations.

 

[Roger Mn.]

Take a silver dollar and in coin mode pinpoint over it.
You will see it only pinpoints a small area.
An aluminum old round beer can lid will have a much bigger pinpoint area.
Aluminum cans even bigger pinpoint area.
Go to all metal mode and you will see high numbers.
Anything with high numbers 26 and above is junk even small scrap aluminum sometimes will show a high number in all-metal mode.
If you practice on different pull tabs and lay a gold ring down you will eventually know a gold ring from a pull tab.
A lot of you don't think that is possible but I could tell the tone was different on the 3rd gold ring with the Etrac I dug that I was sure it was a gold ring before I dug it.
Go out and give it a try and see what you think.

 

[pulltabfelix]

I don't know of any detector that will I.D. aluminum with any degree of certainty.

about a month before I sold my 800 a guy showed in a video that hunting in 4 kHz would hide a pop top or pull tab sitting right on top a dime. And it gave the correct TID for the dime, not a blended or averaged TID. I did not believe his video so tried it. It worked exactly as he showed it in the video. Next time you have a really park with tons of pop tops and pull tabs, switch to 4 kHZ on your 800.

 

[pulltabfelix]

With practice you' get better at "sizing" targets before you dig them.
Of course this all depends on the targets depth but ...
Smaller coin size targets like Quarters usually give you a quick on and off hit when you swing over them.
Can sized targets will usually give you a longer dragged out sounding hit.

Hot Wheels will also give real nice CO 47's.
I have a 5 gal. bucket that's half full of them that I thought were going to be Quarters before I dug them !

Good Hunting !

I am never disappointed with a hotwheels find. I have two grandsons 5 & 7. They have quite a collection. Most hotwheels dug clean up fine. If in decent condition they sell on eBay from about $3 to $10. better than a clad quarter.