Will other Garrett coils work on the ACE 250.

[robert roy]

Does anyone know if other coils such as maybe the 8in concentric coils by Garrett work on the ACE 250. I just happen to think I might be able to pinpoint better. Trying to pinpoint with the stand 6x9 eliptical is a pain. Its rarely accurate. BUT I wonder if other makes and model of MD have the same problem? Any Input?

RR

 

[Paul(NWO)]

Instead of making an "X" swing to pinpoint try making a cross. When you think that the target is roughly under the middle of the coil, pull straight back while holding the pinpoint button. When the signal just disapears, it will be under the tip of the coil. This tip works on shasllow targets. Have some fun with your great machine.

 

[NM5K]

Just need more practice.. It's not the coil..
It's cockpit error. Are you using the normal
pinpointing methods for that type of coil?
What location are you using as the "X"? With
that coil, the "X" spot should be right in front
of the inner coil. So like Paul says, you need
to pinpoint left to right to center the target
in the middle of the coil. Then slowly pull the
coil back, while centering at the same time to
make sure the target is in the middle. This
left-right tone area will shrink as you pull back.
The "tone" area is the same shape as the inner coil.
While centering, keep pulling back until the tone
quits. If you centered properly before the tone
dropped out, the target will be right in front of
the inner coil. If the target is real deep, it can
be back just a little bit, as the pattern underground
is like a cone. At the deepest levels the area the
pattern covers is quite small, and this can cause
the target to be a bit farther back, vs a shallow
target. I threw in an old pix I drew about PPing with
the 250. Maybe it will help a little.
Also, sometimes it helps to detune the pinpoint mode,
by repressing the button. This shrinks the area and
can help sometimes. With practice, you can be pretty
accurate. I stab targets in place with the probe
half the time.
MK

 

[Uncle Willy]

If you can't pinpoint with the coil you have you won't do any different with another one. Just practice with the one you have. It's a piece of cake. Tape some coins to a big piece of cardboard then flip it over and scan the cardboard till you get a signal, pinpoint it, then poke a sharp object through the cardboard and see if you have hit the target. Also watch the pinpoint animation on the Garrett web site.

Bill

 

[khouse]

n/t

 

[tab-nabit]

It took me a few times to figure the ACE 250 pinpoint at first, so practice on a target at the surface, just under the surface, then at some depth. I normally do the "X" and visualize the intersect. The 4.5 sniper coil which works wonders for trashy sites and lets you work up closer to metal objects, pinpoints in the center of the coil. It also gets good depth for a small coil. The stock and 4.5 sniper are the only coils I have for the 250 so I cant comment about any others. Anyway, after some practice you will get better at it like anything else, so practice and find what works best for you.
Many, including myself, also use the hand-held probe. I have a Sunray probe on one machine, then a few other hand-held probes that make target location after you dig, a real time saver sometimes. For lawns, I use a brass probe to locate the target and then work the target up to minimize any damage. This is where accurate machine pinpointing comes in.
Just don't get frustrated, locate that target, maybe raise the coil a little if the target is shallow and sweep it again and at a different angle. Some use the "X" method and other use the wiggle-pull till the audio drops and go with the tip of the inner coil. Find what works for you. Good luck - HH

 

[HotTexas]

One thing that helped me, when I got started was I would plant the coil on the ground after I pushed the pinpoint button, this allowed to move the coil around slowly to find the sweet spot. Don't do this in gravel or rocks. just grass.

all of us will be off sometimes. there might be something else in the ground.


HH

 

[robert roy]

I appreciate all your responses.

Yes, I did try the technique of pulling back and I was successful in pinpointing today but only a handful. The rest of the targets I just could not find. I kept diging and NOTHING.
I went back to my sniper coil and NO problem at all. I walked out of the park with just over $7.00 in change, a matchbox car and a couple pieces of broken jewlery.

I'll keep trying with the other coil though.

Now answer me this: do ALL eliptical coils regardless of made and model have this problem with pinpointing?

Regards
Robert R

 

[Uncle Willy]

No, it's just the design of this coil. It isn't hard once you get the hang of it. When I field tested it for Garrett I figured it out right away and I had no one to tell me how. Most concentric coils are round and throw a round signal whereas this coil is an oval and throws an oval signal.

You can pinpoint with this one like you do with a round coil, it just takes some practice. Just center the target side to side then drag the coil straight back until the signal quits then push it straight forward until the signal quits then drag it back just have the distance you just moved it and the target will be in the center of the coil. This is the hard way to do it but maybe it'll work for you.

Bill

 

[khouse]

I just I would throw this in the pile. About a year ago I was talking to a guy and he told me that he was using his other Garrett coils on the 250. He said that the TID was off a notch or so but you would get used to it. He did say on the concentric coils it pinpointed dead center and there was no loss of depth. I don't have any other Garrett coils here or I would try it. Maybe some other users here will give it a try and post back?

 

[pizzacoil]

Early on, I also had a hard time pinpointing with 250. I eventually found its sweet spot. It's a matter of time and practice to get to know where and just how big or small your target is.

If you are still unsure about the exact location of a target, dig a bigger circumference around the target area. This will lessen the chances of damaging a find, such as I have in the past because of digging small holes. I now dig holes averaging 8"-12" wide, in "C" fashion.

Good luck, and keep at it.

HH