TTF and Depth - Be Careful!

[Nuke em]

I cant really explain other than the idea of not blacking the whole area out which will cause nulling on iron but it also has something to do with where the coins come in on the screen here in England.

9 14 16 18 21 37 to 40 are British coin conductivity numbers and as i thin k that as you go down the screen is to do with depth and to the right is sensitivity thats partly why too, might be wrong but i am no scientist.
Its just that when in the past i dug pound coins out of the black sand non ferrous and irony naily trash of Brighton beach here i got ferrous numbers of as low as 9 to as high as 14 but the conductivity numbers always would stay between 37 and 39.
If the ferrous number was 9 or 10 the coin might or would be in amongst black sand and iron but if it came in at 14 or as high as 15 then i would find them green in colour , as they are made of copper bronze brass or something i thing that this programme will give me a better chance finding the coins in the iron.

Anyway its worth a try .

 

[stasys]

Regarding your soil, first make sure you get you soil setting correct as that can add depth for you. The instructions are pretty clear regarding ground neutral of difficult (I made a video on that too, really short.) Unfortunately the E-Trac doesn't let you see what the soil registers as, so unless you have another detector that tells you (and many do - V3i, Omega, T2, etc.) you have to look for symptoms. For example, if you get bouncy Fe numbers at depth that is often from iron mineralization. If you are not digging deeper targets that could also be due to some mineralization (or just settings that are way to soft.)
Good luck,
Albert

Hello Albert, I think you have to investigate this video http://www.youtube.com/watch?v=00vQpE4eyk4&feature=player_embedded

 

[E-TREC-Virginia]

Thanks for sharing your pattern in writting.

 

[earthmansurfer]

Stasys - Funny you posted that, I honestly was thinking of that when I wrote what I did!!! I have taken some screen shots of my soil as well as the coil over a coin in the ground. The numbers changed but I need more people to do the same and compare it to other detectors GB and Fe3O4 numbers (e.g. - on the Omega) to make sense of it.

You would think after all the years the E-Trac has been out that someone would have been able to pull some GB numbers out of that if they were there? LOL

Thx,
EMS

 

[Bell-Two]

Nuke em can you post the numbers on your first pattern as well? Thanks!

 

[NebTrac]

EMS, Thanks for the information. I was like you, and have found coins in conductive with a high FE reading (27 I think), and I got this out of FULL dig video. So I've not touted the TTF too much, though I do use it. One thing I remember is RayMo's last video, http://www.youtube.com/watch?v=6lg2vdWh1sc&context=C4516da2ADvjVQa1PpcFPH8BsPHfatNoVdx_O6QWnkk1uUdkY2Y9w=

at 9:59 you'll get a screen shot of his E-Trac and hear a high tone with the FE at 24. It so quick, but I think its really giving a high tone while still displaying a high FE number. I find most of the time, I end up unearthing without taking the time to try different settings. Maybe sometime I'll be more patient.

NebTrac

 

[earthmansurfer]

Your welcome Neb - Don't let the screen fool you, it wasn't really displaying an Fe of 24 with that high tone. I mean it was, but the E-Trac needs to clear the target completely before it gives the right VID. I often go over a target with short sweeps R & L and the VID stays the same but the tone doesn't. Also, I am almost positive that the Screen and Audio are on two separate channels and do not always coincide with one another. You can easily confirm this. This is also a bit of a gripe I have with the E-Trac.

I think the solution to using TTF and depth is to really just use 4 tone ferrous. Disregard the very lowest tone. I haven't checked this yet, but am hopeful that doing this opens up the lower 20 Fe range and then you won't miss those higher Fe coins...

 

[Bell-Two]

Your welcome Neb - Don't let the screen fool you, it wasn't really displaying an Fe of 24 with that high tone. I mean it was, but the E-Trac needs to clear the target completely before it gives the right VID. I often go over a target with short sweeps R & L and the VID stays the same but the tone doesn't. Also, I am almost positive that the Screen and Audio are on two separate channels and do not always coincide with one another. You can easily confirm this. This is also a bit of a gripe I have with the E-Trac.

I think the solution to using TTF and depth is to really just use 4 tone ferrous. Disregard the very lowest tone. I haven't checked this yet, but am hopeful that doing this opens up the lower 20 Fe range and then you won't miss those higher Fe coins...

When I first started using TTF I had the same experience as Neb when I asked Terry (Goes4ever) he explained to me that it was not the high Ferrous number object but another higher conductivity target. One thing you need to check if you set up your TTF by starting with the relic mode you will be in "Smooth" response instead of "Normal" response. Also make sure you have set recovery fast. That is the system that works best for me.

 

[Prep1957]

After looking at those screens I don,t see where you launch the angry bird from.This is why I sold my 2 Etrac and kept my Safari I was playing with detector and not detecting but Earthman love your video's.I do not think TTF will find anything more in heavy iron trash than conductive with no or little disc going slow with 6X8 or other mid-size coil.If you get a chance next time you think you found a coin that could only be found with TTF try to go no disc conductive and see if you can get it.I think you will be surprised on what hits harder.

 

[earthmansurfer]

Hey Bell - I set up TTF from scratch, didn't even remember there was a Relic mode - LOL! I keep recovery on fast in TTF as I only use it in dense iron, othwise it is always off. It could very well be true what you are saying regarding a higher conductive target. I think trash density on high shows and/or displays the highest accepted target. More playing is needed and thx for the heads up.

Prep - i don't understand the bird comment? I know I have read that the Safari is not an E-trac inside with just less options. The thing about the E-trac for me is, it is damn easy to use. There are not too many settings and when you change things like recovery speed and such, it makes very little difference except in extreme conditions. Just look at what the experienced hunters use with settings - they vary even in the same conditions. It is deep no matter what settings you run for the most part but I always have trash density on high.

I do tend to agree with you that with a small coil in iron with conductive sounds, you will get great performance but with SOME disc. I have compared signals from cond to ttf (not as much the other way) and cond was better a good 95% of the time! BUT, if you run no discrim then the trash density high setting is useless and I think it's important to run that with some discrim, say 28 or higher on down. If you run wide open disc then iron will often overpower nearby coins - i have tested that and have it on video, quite often. I usually check a target with a wide open screen and it sometimes will drop to the lower right corner due to nearby iron. It depends on the vicinity and size of the iron. Thx for your nice comments but I think I'm in agreement with you on conductive, but with some disc.

Albert

 

[Bell-Two]

I do not think TTF will find anything more in heavy iron trash than conductive with no or little disc going slow with 6X8 or other mid-size coil.If you get a chance next time you think you found a coin that could only be found with TTF try to go no disc conductive and see if you can get it.I think you will be surprised on what hits harder.

While I have found a few coins in sporadic heavy iron in conductive, I have found many more in TTF. At a 1812 house which was so iron loaded that you could not get a threshold at all in a more open conductive pattern (Sabisch) TTF was the only option. Especially coins with large iron near them and or on edge. I got a signal that was just a short high tone next to a loud grunt of iron, in the hole was the big piece of iron and a few inches away on edge was this coin.

 

[Bell-Two]

I do not think TTF will find anything more in heavy iron trash than conductive with no or little disc going slow with 6X8 or other mid-size coil.If you get a chance next time you think you found a coin that could only be found with TTF try to go no disc conductive and see if you can get it.I think you will be surprised on what hits harder.

While I have found a few coins in sporadic heavy iron in conductive, I have found many more in TTF. At a 1812 house which was so iron loaded that you could not get a threshold at all in a more open conductive pattern (Sabisch) TTF was the only option. Especially coins with large iron near them and or on edge. I got a signal that was just a short high tone next to a loud grunt of iron, in the hole was the big piece of iron and a few inches away on edge was this coin.

I wanted to add the picture of the coin but for some reason my post dissapeared before I could add it and it did not show up in this thread until much later....spooky stuff Anyway here is the coin that was found