All Metal and Pinpointing on GTI's

[Schlepprock]

Why is it that all metal mode doesn't work as good as pinpointing seems to on my GTI 2000 and 2500s. When pinpointing my detectors find everything and only sounds off when there's something in the ground, and they work very deep compared to disc. modes. But while detecting in all metal mode the detectors seems to get a lots and lots of false hits and are constantly sounding off, and the pinpointers don't pick anything up. This is especially bad on the ends of the swings, in both directions. The coil wires are nice and snug and I'm sure they're not the problem. And beings the detectors have both been sent back to Garrett fore maintenance, they're not the problem. If the all metal mode would work as good as pinpointing then I would be more than satisfied with them.

Meanwhile I strictly use them in disc. modes and they're not all that deep (only about six inches) of a detectors in those modes. If I thought I could use them while holding down the pinpoint buttons I would, but I'm sure that wouldn't necessarily be a good idea. Does everyone else's GTI's do this as well? And if they do then why is it they act this way. I would think that Garrett would make them easies to use in all metal mode.

Schlepp.

 

[bearkat4160]

Sounds like to me your not ground balancing the machine in all metal mode or the manual ground balance is set on and you are not balancing it. It will in that mode pick up all metal targets including tiny ones and pockets of mineralized soil as well as hot rock ESSPECIALLY if you dont grd balance it. You must ground balance the GTI 2500 in the all metal mode.

As far as depth for the 2500 in Disc mode is not that great. I have some little tricks I do to max it out in disc mode for depth. If I am just coin poping in parks I just keep it on factory sensitivity (9) or somehwere between 7-9. If I want some depth in Disc mode I will hunt with it maxed out on 12 sensitivity. If it gets a little unstable ill go down a notch. Seems 10.5 is the sweet spot for stability but in the woods you can run it wide open esspecially with the DD coils.

This maxed out sensitivity in disc mode allows the receive coil to be maxed at receiving signals and is more atuned to deeper signals and smaller signals. Just because it is at its peek listening stage. I have actually got some signals with the 2500 in all metal mode and switched to disc mode and got no signal until I pumped up the sensitivity from the 9 setting which I usually hunt at to max (12)...then the signal pops in and can compare better between the 2 modes. Yes its a pain having to run the sen way up and back to normal sometimes, then switch modes while doing so, but I dont mind, as I know how to push the GTI 2500 to get the best out of it and can detect through all its noises it makes.

The 2500 with the 12.5 coil however I dont need to run the sen to max usually in disc mode as it puts out quite a energy field which punches deep. But I have done it and it does the same thing which is...makes the recieve coil more sensitive to receive those almost out of reach targets. Hope this helps.

Alan

 

[fongu]

I thought the ground balance in all metal was automatic? I watched the DVD and it showed how to manually set the ground balance, but it doesn't seem necessary in my area.

 

[Orion42]

In all metal you still need to at least use the fast track to ground balance it.

John

 

[Schlepprock]

I've tried both detectors in fast track mode after bouncing the coil as described in the handbook, but they still seem to have problems. There's no doubt that it's the ground balancing problems I'm having but no matter what I do I still have the same problems on both detectors. I've also tried to manual balance both of them to no avail, but in all honesty I don't hear a difference in sound while bouncing the coil like the manual says.

If anyone has tips on ground balancing, I'd sure be glad to hear them.

Schlepp

 

[Uncle Willy]

They have to be ground balanced in all metal to perform correctly. Use the Fast Track as it is easier. You can't just switch it to all metal and hunt. It has to be balanced.

Bill

 

[Schlepprock]

They have to be ground balanced in all metal to perform correctly. Use the Fast Track as it is easier. You can't just switch it to all metal and hunt. It has to be balanced.

Bill

As I said before, when I try to ground balance the detectors using fast track I can't hear any difference in sound while bouncing the coils. As both detectors have been to Garrett and have clean bills of health, it must be me somehow.

Is it possible I'm using the fast track at the wrong speed? I've been using it in medium speed.

 

[Uncle Willy]

Do you press and hold the All-Metal/Fast Track button while pumping the coil up and down two to eight inches above the ground then release it when there is minimal sound at either end of the pump.. Then the machine is balanced. You apparently aren't doing one of these procedures or doing it correctly.

Bill.

 

[bbillb]

So if I manual ground balance, do I shut off the auto track? I'm still learning the machine too.

 

[fongu]

One way to find out if you have a hot rock in all metal is to switch to zero mode and if you get a good signal, dig. If not, it's probably a hot rock. When I put my 2500 in all metal mode, it says fast track, but all metal picks up every little piece of metal and if there is a pipe or something near, it will pick it up, also.