X-terra 305: Lets try to figuere out the ID-numbers!

[mackthemack]

Fellow 305'ers!
I have done 5 trips with my new 305 and I am still struggling a bit with the ID numbers.
Obvioulsy -4 to 12 is objects with high iron containt? But someone told me that if I found gold it would typicaly give a low/deep sound, suggesting a low ID number. Is this right?
And whats the story about all those deep 40 IDs? I keep on getting depth:5 and ID 40, do you all dig these signals?
Sometimes I experience that the ID number drops as I dig and the object gets closer to the coil, anyone else also experienced this?
And what is this 44 very high sound?
And where is aluminium at the scale?
And will a low ID number always produce a low/deep tone?

Anyone that can contribut with their experiences are welcome to share their knowledge

Kind regards
Martin
Norway

 

[mackthemack]

is this according to your experiences?
Since I search outside the US, can someone please tell what metals are in the clads and the coins with the lower numbers?
(I kind of get the silver, gold and so on, but I dont know what all the dimes etc are actually made of...?
Cheers

 

[Furious T]

The best thing for you to do is to gather together a collection of metal objects, e.g. different coins, bottle caps, pull tabs any gold and/or silver rings or jewellery you can get your hands on. Then take your collection of stuff with your detector and a notebook and pencil/pen outside into your yard (or some other place where you will have a bit of peace and quiet). One at a time place an object on the ground ( after first checking that there is not metal object in the ground), wave your coil over it and make a note in your notebook as to what the object was, and what number it registered on the 305. Do this with all the objects you brought with you and then you will have your own list of what registers where on the meter. Make allowances, when you are detecting stuff in the ground for mineralisation in the soil to alter the responses a bit one way or the other...but doing the test I have described will be a good starting point. Good Luck.

 

[Furious T]

PS. When doing this test, make sure your sensitivity is not too high, or you may get false readings.

 

[TURNMASTER]

Scale ain't that different from the 705 and I dig 12s

Jeff

 

[Digger]

You're correct, you need a smaller coil. Until you get one, try raising the coil a few inches off the ground when you sweep. In addition, you might lower the sensitivity.

I know there are those who will disagree with me. But my recommendation to you is to switch to the multiple tone mode and hunt in all metal. Ignore all the minus readings with low tones. And dig all the positive TID readings that are consistent. In other words, tones that stay at the same pitch when you slowly move the coil from over them. You are going to dig a lot of junk for the first hour or so. But once you figure out what it is your not wanting to dig, either ignore that TID or notch it and those ferrous numbers out, via a Pattern. But as I've said many times, I'd rather hear all the tones and let my ears figure out when to dig as opposed to having the detector null out on a big chunk of iron and miss that little gold coin laying a few inches away! JMHO HH Randy

P.S. Here is a post I made a couple years ago, talking about target ID's and what they might represent. I realize the X-70 has twice as many notch segments (TID numbers) as your 305. But when you read it, you'll get a general idea as to what can happen if you dig based on what number appears on the screen. http://www.findmall.com/read.php?55,569213,569213#msg-569213

 

[mackthemack]

Thank you all for your good advice! I guess theres no shortcuts here, wish I had more time to spend with my detector!!
I appriciate it alot guys
thx
M&M

 

[zapper65]

That info has also helped me Thanks

 

[Goes4ever]

when you talked about getting a lot of #40 with all 5 arrows, was the signal fairly loud or really quiet?

One thing you need to remember, with your detector, the deeper a coin is the quieter the signal and if it is truly at 5 arrows, it will be a whisper.

Now if you get a signal that shows full arrows on depth, and it is nice and loud. I can almost put money on it that is is not a coin. Sometimes it can be a TINY object like real small button that is only an inch or two deep. The machine depth gauge is based on coins and their sizes

so if something is real large the meter could say it is 2 inches when in reality it is 8 inches. Make sense? or am I confusing you?

 

[zapper65]

more questions should I use factory pre set to get to know my 305 I did find a quarter it read 40 showed 2 arrows and it was about 2-21/2 inches I don;t understand Threshold yet like I said each time i read the book I'm a little more confused. Thanks

 

[BarnacleBill]

Yes, use factory preset for a while. Also throw down some targets over clean ground to practice with. Don't worry about threshold for now, set it to zero so that it's one less thing to listen to till you become more familiar with the detector. Not everyone uses threshold, so it's not something that is a must have for you at this stage of the game. Your quarter read correctly as each down facing depth arrow equates to about two(2) inches on a coin type target. So two arrows is about four inches, three arrows is about six inches etc.

HH
BarnacleBill

 

[Mick in Dubbo]

Brilliantly simple and useful information Goesforever. I've enjoyed A few of your recent post of tips. Digger has also written some great posts in the same threads too.
Mick Evans.

 

[Goes4ever]

Brilliantly simple and useful information Goesforever. I've enjoyed A few of your recent post of tips. Digger has also written some great posts in the same threads too.
Mick Evans.

The depth meter tells you a lot more than just depth when you also consider loudness or quietness of signal, size of target etc.....

 

[Mick in Dubbo]

Because I'm generally going after recent drops (modern coins) I've been more focused on a good hit rather than the subtleties of the faint hits of the deeper older targets, so I have not paid attention to the depth meter in relation to the strength of the hit. It's so obvious though, but you gotta be looking for it.
Something that I have discovered over the last few weeks with the prospecting mode though. When pinpointing a good sounding target, I've found that whipping the coil over the target, a coin will not give a full tone where as a larger target like screw caps and bigger, do. It's been most notable with the 6in concentric coil on.
Mick Evans.