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Unstable in Parks...Advice Please

sonnydigs said:
I've noticed the same thing...
It will totally null out, swing away from that spot it's fine..
Swing back over the spot where it nulled out it goes silent again..
It is like something in the ground is causing it..
I've had it happen in various conditions..
Really hasn't been a problem, just thought it was normal... Now I wonder..
Click to expand...

And you have no discrimination running on your screen when this happens? Obviously not an issue if you are running over targets you have requested to ignore. If wide open screen, and I mean wide open without a single line of discrim, and you still get nulling, I would think that be a problem.
 
lomoch said:
sonnydigs said:
I've noticed the same thing...
It will totally null out, swing away from that spot it's fine..
Swing back over the spot where it nulled out it goes silent again..
It is like something in the ground is causing it..
I've had it happen in various conditions..
Really hasn't been a problem, just thought it was normal... Now I wonder..
Click to expand...

And you have no discrimination running on your screen when this happens? Obviously not an issue if you are running over targets you have requested to ignore. If wide open screen, and I mean wide open without a single line of discrim, and you still get nulling, I would think that be a problem.
Click to expand...

I will have to check and see if if i was running wide open...
It is possible I was in Pattern 1 when I experienced it..
Thanks......
 
I go to parks all the time with my e-trac and really trashy ones at that and my e-trac doesn't act erratic like that.
 
My machine nulls on a wide open screen and so did my etrac before that. Wide open screen does NOT equal true all metal. At least as far as Minelabs are concerned.
 
Can not believe your problem is trash. First things first. Are you noise canceling, is your sensitivity set to A or +1 at the most. Try ground balancing also. If that does not work check all your connections. Take your coil cover off and make sure it is clean. Wipe everything off with a rag and start all over again with noise canceling.

If that don't work, call Bart at "Big Boys Hobbies". May be a bad coil. Just guessing. You could also call Minelab North America and ask technical services.
 
That does not sound right to me. All the parks cannot be heavy trash like that. Mine never behaves like he is describing, especially is parks. Lower sensitivity,
Try a master reset. If no good try and hook up with someone that has a CTX and swap coils. That's the best I can do for you.
 
Get rid of the shoes with the metal eyelets and see if that fixes your problems. I diid not see that post.

If you try all of the suggestions listed in the posts with no results, call minelab technical support.
 
I have had my CTX for about 2 weeks and finally hit an area NOT my own yard yesterday. I picked a old local park which has probably never been detected.

I am having the same issue as you. Basically, the thing NEVER stops chattering no matter what you do.

What I have learned in just the short time I've used it though,

1. Even if you get a good signal for a swing, change the angle and speed of the swing to see if it is repeatable. Also, walk around the target while swinging. Does it stay solid or does it change? Keep in mind that an object will present different profiles and therefore different signals at different angles. If the target stays solid from all directions/swing styles it is probably good.

2. Ground balance, ground balance, ground balance. That really helped me as I changed soil conditions.

3. Turn the sensitivity down and also shrink the frame size. I would scan the area at 3x3 or larger. When I found a decent repeatable target, I would shrink it to a 1x1 and really home in on it. I noticed it helped me tell how repeatable the signal was.

My issue has been signals that seem to move. For example, I will go through all of the above steps and find what I believe to be a solid hit. I will then dig, scan the hole, dig, scan the hole, etc. Being %100 sure that I did not move the target with my shovel, it will seem that the target will have moved several inches to one side. I ended up digging trenches a foot long as I chased the target. I eventually never found anything. I'm still trying to wrap my head around that one.

As folks have mentioned, look at your boots. The first few times I used the machine, I could not swing near my feet without overloading the unit. I wear cowboy boots EVERYWHERE and realize that the things are full of nails and shanks. The CTX is extremely sensitive and even being within a few feet of my boots, it was overloading.

Having the same "problem"as you, I assume it is a learning curve that we will both have to overcome. I know that my park is trashy because every 2 inches I found pop tabs and foil wrappers. I am also considering the 6 inch coil. I believe anything that helps shrink the search area will really help.

Now to fogure out who my targets are walking :surprised:

WM
 
Trust me,

After yesterday, I thought about it LOL
 
You need a pinpointer... what are you talking about with frame size?
 
If you have the manual on PDF, look at page 9.

I will give you the text here in case not.

"Edit Frame Size
Target ID accuracy can be affected by other targets or ground minerals so
sometimes you will need a precise pattern. At other times you will need a more
open pattern to ensure you don
 
WyomingMedic said:
If you have the manual on PDF, look at page 9.

I will give you the text here in case not.

"Edit Frame Size
Target ID accuracy can be affected by other targets or ground minerals so
sometimes you will need a precise pattern. At other times you will need a more
open pattern to ensure you don
Click to expand...
 
Hmmm, I took it to mean a different thing.

http://www.minelab.com/treasure-talk/beach-hunting-with-the-ctx-3030-part-3


WM
 
That's what I was thinking c&r. Wyoming I have never seen anyone use frame size for the reason you are. I always hunt in just about as open a screen as possible. It works for me, yesterday I did a 1790 farmhouse and was able to find two early bust large cents, button, buckles, wheats, plated gold wedding band, and so on. the yard was trashy since it had been in operation for 200 + years and the original farmhouse have been torn down and a new one built on its footprint.
 
As I re-read the above link again, I think I have it figured out.

If you (in the field) have the detector skip over a certain FO/CO number, the frame size will decide how close to that exact FO/CO number an object must be before it accepts it. Small frame size, no variation will be skipped. Large frame size, more leeway on FO/CO numbers.

That makes sense. Much more than how the manual describes it.

WM
 
Wyoming, any object with the same co fe numbers contained within the frame will either be accepted or rejected. The frame has no affect to objects with co fe numbers outside of the frames
 
WyomingMedic said:
Hmmm, I took it to mean a different thing.

http://www.minelab.com/treasure-talk/beach-hunting-with-the-ctx-3030-part-3


WM
Click to expand...


WYO & GKMAN

Maybe I confused you two. The Minelab site says the same thing as did. The different size of frames are ONLY FOR EDITING a discrimination pattern. You can accept or reject a single square, 4 squares, 9 squares, etc. at a time . It doesn't matter what frame size was last selected when detecting, the frame size does not have any thing to do with the detecting process.. The discrimination pattern you happen to be using allows targets to be accepted or rejected. (The pattern shown with my last post was just to show "accepted" areas for the different frame sizes available in XChange2. That is not any kind of pattern to hunt with)
 
As C&R Hunter says, the frame size adjustment is simply to allow for more or less precision when editing the selected discrimination pattern, and has absolutely nothing to with actual detecting. Try it, change the frame size to 5X5, place a test coin on the ground, detect the test coin and then press the reject/accept button twice, you shoud now have a 5X5 area shaded out (discriminated), and that test coin should no longer be detected with that pattern.
 
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