GTI 2500 Question

[GH]

Is the GTI 2500 suppose to give a reading of say 3 b 4" , when swinging coil, then when pinpointing shows 5 B at 4". Could this be because Canadian coins are made of different alloys then USA coins.

I've been mostly MD'ing in moist sand. Several times I've noticed the reading I get when swinging usually shows a different metal ## than to the pinpoint metal ##. I'm I not understanding something. Dave

 

[Uncle Willy]

Garretts are programmed to ID U.S. coins and give a slightly different reading on foreign coins. John, our resident Canadian, could fill you in on that.

Bill

 

[jeff@middlesex]

What is 3B and 5B? You will get different reading particularily in sand, because coins are not laying flat.

 

[GH]

Well I went through the manual again and here's what it said under the title Upper scale "Indicates target(s) discovered and their conductivity while in operate mode; Indicates target strength when Treasure Imaging touch pad is pressed ..."

Taken from Garrett's Hand book manual for GTI 2500.

So when looking for item's it first indicates conductivity, when Imaging is used it shows signal strength.

Now makes more sense, because when pulling pennies, I would get different reading, conductivity was the same but signal strength would sometimes be different and sometimes visa versa depending on year of penny. this would apply to all coins of various dates.

So now off I go again today to see if a local beach park is open yet and take to pooch for an outing at the same time. Dave

 

[grumpy]

Dave;
If you are like me and several other 2500 users you might listen close it is saying SIZE not 5 B but SIZE B. Mary got a chuckel out of me and my hearing but it makes much more since when you understand that the machine is saying size b at 4 inches.

Good Luck
Grumpy

 

[Uncle Willy]

Yeah that electronic voice is a little tricky at times. At least it ain't in Spanish.

Bill

 

[GH]

maybe Cree language would help

 

[au4greg]

Not talk'n about a Bra Size either

 

[jimmileo]

For the longest time I thought it was saying 5b too! If your coil is not precisely over the target it won't be as accurate. Pinpoint your target and it usually will appear more shallow than when originally found. JIM

 

[swmotim]

I have noticed this same effect. The replies you received looked to me like they pretty much forgot what your question was. They made a valid point about the interpretation of the words "five" and "size"...but I thought your question was "why do I get a target id as one thing when swinging the coil and something else as imaging". You probably found the right answer in your last post, but here's what I went through in that regard. Until recently, I would disregard the signal and not dig it when I got that conflicting info ( I gave more credence to the imaging information than to the original swinging coil information). I hate to think how many silver coins I may have passed up using that logic. What I eventually found out was that the target id it gives me when swinging the coil is usually the correct information, and the imaging information is very often not correct. eg The machine says it is a dime when swinging the coil and it says it is a pull tab when imaging. I now use the image feature to locate the item to dig it...and very often it will tell me I am digging junk...but out pops a coin just like the first information (swinging coil) had indicated. I think it is just one of those things they are referring to when they say you have to spend a couple hundred hours and learn your machine.

 

[GH]

The answers every one wrote are all correct, thanks for all the quick responses from everyone.
I'm finding I can pinpoint a single target from multiple targets by using very short swings at various angles, I was using the 9.5in. coil in relic mode.
I think it the machine will give multiple readings on one target because of different alloys (2-3 metals amalgamated into a single object) or 2-3 different metals pieced together, like a toy car.

I really find it helps to know the size of the object so I can make a better choice as to dig or not. I usually dig anything that an A B or C size, D size is getting into pop can, already dug enough of those to know GTI sizing works well.
Well enough talk for now. Dave

 

[Uncle Willy]

The trouble with imaging is that you have to have the target perfectly centered to get an accuarate reading. The ID is probable and not actual and not 100% accurate.

Bill

 

[jimmileo]

When I hit a pop can size target or larger, I always get the overload signal. For a long time I went ahead and dug these, but after a thousand cans, I quit. Now if I was hunting relics, I would pay more attention to it. Jim

 

[Uncle Willy]

Another thing that might give an overload is a shallow SAC dollar. I've found several in bark chips that gave the overload.

Bill