CTX TID

[jablonsky]

To those whom have tested the CTX, I was wondering how close the TID numbers were to the E-Track?
It seems so far that the coins I have found are right on.

 

[Digger]

With the same 1-35 Ferrous and 1-50 Conductive scale, I found them to be nearly identical to the E-TRAC. HH Randy

 

[jablonsky]

Going from the 705 to the CTX isn't as difficult as I innitially thought. I was curious what range gold rings would fall onto.
I looked at the E-Track post but couldnt find it. Any help would be appreciated. Thanks Digger and others

 

[Digger]

Since rings are of all different sizes and shapes, and of different Karat weight, it is impossible to make a chart that is definitive. My best suggestion would be to take all tghe jewelry that you can get your hands on, pass each one under the coil and write down what you get. I think you'll find that the FE number stays pretty close to the 12 ferrous line. And the CO value will increase proportional to the mass and "purity" of the ring. You mentioned the 705...... as with the X-TERRA, the larger the ring..... the higher the number. If you do come up with a chart, we'd appreciate you sharing it with us. HH Randy

 

[D&P-OR]

I'm really glad to hear that.

With the same 1-35 Ferrous and 1-50 Conductive scale, I found them to be nearly identical to the E-TRAC. HH Randy

 

[bcoop]

It all depends on the shape, size and metallic properties and ground matrix will make a difference as well. I have found several gold rings with my E-Trac, I have also tested all the rings my wife and mother in law have.

Here are some gold ring FE and CO numbers the E-Trac presents. These numbers I accumulated myself and from others that have been posted and in Andy's book.

Asterisk indicates more than 1 ring showed up with these ID numbers. I have found rings seem to lock on tight and keep presenting a solid smooth tone, not scratchy or broken. The CTX 3030 with the smart coils should hold very consistant ID numbers.

12-4*
12-5
12-6
12-7*
12-9*
12-12
12-18
12-19*
12-20*
12-21
12-22
12-24*
12-25
12-26
12-27
12-29*
12-34*
12-36
12-38

 

[pspr]

Not having used even the e-trac I was wondering what type of trash also falls along the 12 ferous line? Would tabs and screw caps be at 12 also?

 

[Digger]

A lot of the "modern trash" does follow the FE 12 line. But the CO line will help differentiate much of it from coins. Here is set of charts that Jim upstate NY posted over on the E-TRAC site, showing various TID numbers for coins, trash and relics.

http://www.findmall.com/read.php?63,820520

Hat's off to Jim for providing the charts! HH Randy

 

[TabWhisperer]

I find the Etrac (like a lot of detectors) jump around quite a bit on trash with repeated passes and different angles. Good stuff like jewelry tends to lock on pretty hard. I have found that effect should be really evident if the target is less than 5 inches deep. If you get deeper then TID can start getting weird but again that depends a lot on local conditions. I still dig a fair number of pull tabs and can slaw and I normally am correct when I predict what I am about to dig up. I just hate the thought of passing up something good thinking it was a pull tab (again). I do wonder if the CTX has any real improvements in identifying pull tabs or if that is something we all will have to live with forever.

 

[jablonsky]

Thx Coop, you Army Dawgs aint have bad.....

Remember our fallen brothers today

 

[bcoop]

As Randy stated. The larger the ring and karat composition will present a higher CO number. Those two variables don't always go hand in hand.

A friend of mine was telling me about one of his hunting partners having coins discriminated on his E-Trac including pennies while beach detecting because he don't want to dig them. He had a small thin gold ring, not sure of the Karat. Anyway the E-Trac would not detect that ring unless the Co numbers associated with pennies were accepted.

BCOOP

 

[Charles (Upstate NY)]

As Randy stated. The larger the ring and karat composition will present a higher CO number. Those two variables don't always go hand in hand.

A friend of mine was telling me about one of his hunting partners having coins discriminated on his E-Trac including pennies while beach detecting because he don't want to dig them. He had a small thin gold ring, not sure of the Karat. Anyway the E-Trac would not detect that ring unless the Co numbers associated with pennies were accepted.

BCOOP

24k gold is HIGHLY conductive, it could have been a 20k or 22k karat gold which is common in some cultures. When alloyed e.g. 14k for example the conductivity of gold falls way off which is why they move down to the foil to nickel range. That's where size comes back into play. A large mans 14k ring can ID as high as a quarter where a much smaller womans 14k ring might ID as nickel. I have dug gold rings from foil to quarter and all parts inbetween. One of the things I look for are targets that ID in the areas between known targets, somewhat above or below nickel for example, somewhat below and to the right of penny, when beach hunting these oddball ID targets are often jewelry.

 

[bcoop]

Charles

That is exactly what I do on the beach, and even though a piece of jewelry may come in at the approximate CO number as a penny or close to it the tone will sound different. Of course you really notice it after you have dug a handful of pennies then hit a piece of jewelry that comes in and around the same range.

The CO scale on Gold can run from 01 to in the 40's. A friend of mine found some nice 22k gold on the beach, 1 being a child's bracelet. Often worn by Middle Eastern and East Indian nationalities, they have good taste in gold jewelry.

BCOOP

 

[pspr]

Thanks for the link Digger. It looks like a better question would have been what ISN'T on the Fe 12 line instead of what is on that line.