I have a request for those of you hunting outside of the US.......

[Digger]

I'd appreciate it if some of you could make a TID chart of the coins found in your part of the world. If you rather not put the information in the form of a chart, send me a message with the type of coin, metallic content, denomination, and TID readings found by using each of the four Separation modes. Then I'll put it together in a chart type format and post it on the Classroom. Thanks in advance. HH Randy

 

[earthmansurfer]

Digger, of course I don't mind helping but the coins in Europe anyway, hit absolutely all over, past and in between the range that you see in America. In a way it's why we can't use patterns like Bill_S' high trash pattern.

I could work on some of the more typical coins I dig, but that would be for my area of Germany, as it varies a bit.

But I'm doing this on a rainy day! eheheh

Albert

 

[Digger]

Thanks Albert, I was betting we could count on you! Your point about using specific Patterns is the reasoning behind this excercise. No offense toward any given Nation's coinage intended..........but one man's trash is another man's treasure......so to speak! Thanks again. HH Randy

 

[earthmansurfer]

Digger - by separation modes, do you mean the ground settings? Also, I was going to run the tests in 50 CO. Have you seen differences in VID between that and say, Combine?

Thx,
Albert

 

[Digger]

By Separation modes, I mean High Trash, Low Trash, Ferrous-Coin and Ground-Coin. As posted in the US coin chart, the CTX 3030 does have a variation of TID information between those four modes, with larger silver targets. Ground-Coin and Ferrous-Coin are similar, and High Trash and Low Trash are similar. But on those larger targets, the FE numbers are 01 on High Trash and Low Trash, where as the same targets provide a fairly consistent FE 12 on Ground-Coin and Ferrous-Coin. In addition, on those same large coin targets, the CO numbers are a bit higher on Ground- Coin and Ferrous-Coin, compared to High Trash and Low Trash. I would suggest the variation is due to different a different filtering process between the Separation modes.
As to variations when using a different Tone ID Profile.....Tone ID Profile merely changes whether we hear the FE value of a target, or the CO value, and the number of tones we assign to each property. Even when using Combined, we hear either the FE value of a target or the CO value. Not both. As such, unless I've overlooked something, I've not encountered a noticeable difference when changing the Tone ID Profile. Ground settings (default vs GB) could provide variation in TID readings. But the differences will be based on the ground matrix and not the target itself. As such, I don't think charting those numbers for one area would benefit someone hunting in another part of the world. My preference would be for you to do the TID readings using Ground Balance - NO, with air tests or with the target laying on the ground, with no adjacent targets. Thanks again. JMHO HH Randy

 

[earthmansurfer]

Hey Digger. Here are some of the most typical (and the silver are to me, the most sought after) coins I come across. There are still more, but this gives a very good idea to start with.
If you PM me with an email address I can email you the excel sheet. I can add to it at a later time as well.

Good exercise!
Thanks,
Albert

 

[laplander]

When you come over to hunt I have a few coins and artifacts from England I have dug so you can try them yourself! We picked up 2 inches in the last 24 and the ground is great