Ace 250- trouble pinpointing deep targets

[Kobi]

I am having a little trouble pinpointing deeper targets. Any suggestions?

Thanks

 

[John D.]

Lots of practice!

 

[species0113]

dig a bigger hole.

 

[species0113]

what size coil do you have and how deep are you talking? try pinpointing from different locations around the treasure,clockwise from 1 to 3 to 6 to 9 to 12 o'clock. it works for me.

 

[John D.]

Hey! I Love Your sense of humor!!

 

[Dang]

Deeper targets are usally more in the center of the coil when the pinpoint marks are at their peak on the diplay.

 

[Uncle Willy]

THe rule of thumb on shallow targets is the center front tip of the inside oval on the coil. As coins get deeper the hotspot moves backwards from that point towards the center of the oval. Also when you have a problem turn ninety degrees to the target and scan and pinpoint again. This will usually nail it.

Go to the Garrett web site and they have an animation showing how to pinpoint. Targets 2-3 inches deep will be under that center tip hotspot but as they get deeper just move straight back an inch at a time from that spot for every extra two inches in depth.

Bill

 

[John-Edmonton]

http://www.garrett.com/hobby/techsupport/pinpointing.htm

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[jery]

I have learned to pinpoint somewhat with my new 250, however, i dont believe it is as accurate as the crossfire coils on my 550 and 750. I never use the 250 in places that i cant use a backhoe to dig with. I really like the features of the 250, but pinpointing with it is as bad to me as the old 250. I just cant get the hang of it and i am not new to this hobby. Jerry

 

[NM5K]

I can't comment on the 550/750 coils, but the ace coils
are normally pretty accurate. I think it's mainly just
practice, and getting used to them. I have all three coils
for the 250, and I can stab a coin in place with each one
of them. Even the 9x12 coil I have seems to pinpoint quite
accurate. Course, the sniper is deadly accurate, but it's
different than the larger coils. You "X" it to pinpoint,
vs the usual "pull it back until it quits" method of the
big coils. If your targets are off to a side, you need to
double check the side to side distance right before you
lose the tone when pulling it back. Should be even distance
either way. Note that the side to side distance is very
narrow as you reach the cutout point when pulling back.
When pinpointing, I usually try to get as close to the ground
as I can. But whatever distance from the ground, you need to
keep it level, and not vary the distance. That can throw off
your for/aft measuring a bit. The higher the coil from the
ground, the farther back a deep coin will pinpoint.
If you tell me the usual error you see, I can probably tell
you what the problem is. I'm a pinpointing fool on mine..
I stab many coins in place the first shot. Course, I see a
few weird ones pop up from time to time.. Like the "ghost"
holes, etc.. The times I might have problems are in trash
areas, or really busy areas where you pinpoint multiple
targets. IE: A large close iron target can mask a coin when pinpointing.
When that happens, I turn at different angles to try to isolate
the coin better from the iron. Also I'll detune the pinpointer,
by repressing the button. Sometimes that can help lose the
iron or whatever. Sometimes it can be a real pain.
I whip out my sniper coil if it gets too bad. But in a normal
"clean" area, I'm fairly deadly with the pinpointer with even
the big coils.
So I can say it's not a fault with the coil or machine design.
There are a few quirks you have to get used to though.
MK

 

[Ken_in_MI]

I agree with NM5K that pinpointing was tough at first, but I refined it with practice. I also have all 3 coils and can pinpoint within an inch regardless of depth. As stated the deeper the target, the farther back on the coil it will pinpoint. Keep at it! You will master it, then you can leave the back hoe at home

 

[Uncle Willy]

It's a piece of cake and dead on if you do it correctly.

Bill