Super Program and Setting for HEAVY TRASH

[Cody]

Super Heavy Trash Program

Use LEARN to Accept trash targets. This can be done by sweeping over a heavy trash area in with LEARN Accept or sweeping trash targets past the coil. I reduce the sensitivity to 1 to 3 so there is no interference accepted as false targets. Use the smallest cursor for this operation.

Go to EDIT and clean out the upper right area of the screen to be sure a good target has not been LEARNED. Store the learned trash targets in an S memory location.

Create a basic screen as shown in the illustration figure A.

Go to menu and CLEAR the screen then select all trash except NAILS and Crown caps. If nails are selected for rejection then the threshold will null very often on iron that falls in the IM-15 zone. By rejecting the lower right half of Ferrous zone 0 the highest tones are for silver at the upper right of the display. Selecting the other trash will cause the ICONS for trash to appear as an aid in discrimination. Coins and jewelry should not be selected as these ICONS appear to be a default for ICONS. Select the trash items that was stored in an S memory location above.

We now have a program that has a steady threshold and ICONS to help in the ID of trash. Null of the threshold will be virtually non existent. My tests have demonstrated that most all nulls that are noticeable are caused by iron and not minerals. If there is a null on the trash set to be rejected it will be so brief as to not be noticed or barely noticeable.

Go to Audio and set the threshold tone to the lowest setting, this will be the low tone for iron for tone ID, set the variability and limits by using IRON, a NICKLE, and quarter. With the threshold set to the lowest value iron that is heard will have a very low tone but a nickel and quarter will have a distinct difference. There will only be three tones, one for iron one for middle and one for a high tone. Decrease Audio Gain between 4 and 6. Set the Sensitivity as high as you can, mine can most often be set at 26 to 32 in Manual. USE FERROUS sounds and AUDIO1.

Sweep the coil slowly and listen to sounds as demonstrated in the attached illustration.

 

[Cody]

n/t

 

[Tony N (Michigan)]

Is that screen using approx. an IM -13 ? Or did you just manually black out that left and right portion of the screen?

In the first paragraph are you basically saying not to reject nails and crown caps via the factory settings but do so in the field being hunted?

I've been detecting full open IM -16 and the sometimes drumming of the deep iron or iron mineralization might be masking a goodie?

 

[Cody]

Is that screen using approx. an IM -13 ? Or did you just manually black out that left and right portion of the screen? (I manually black out the left and righ portions of the screen. The left black are is IM-15 but can be more if iron is bad. Most iron hits in the area the width of the factory NAILS area. I think that would go to about IM-13, IM-14 and IM-15.

In the first paragraph are you basically saying not to reject nails and crown caps via the factory settings but do so in the field being hunted? Yes, I am saying if we have a clear screen but don

 

[airfitter]

Cody First of all I am amazed on how much time you put into researching the explorer and for this I would like to thank you.A few weeks back there was a post where you stated to hunt in trashy areasyou should lower the sensitivity, sweep the coil over the area and reject all the trash(in a nutshell) then hunt at a higher sensitivity.Doesn't the nulling of the trash hide the good tagets? in this post you say accept all trash at a lower sensitivity then hunt at a higher sensitivity.I'm totally confussed,but thats normal for me. do both of these programs work?

 

[Cody]

It would seem to do that but if we reject the trash with the smallest cursor then the null is so brief that we don't really notice them. Also, the discrimination is not linear from the bottom of the coil to maximum depth. It is very solid from about 1/2" to around 6" so there are very quick nulls. It actually is iron that will cause the long nulls. If you test iron and non-ferrous metals we will see that iron can be detected outside of the physical diameter of the coil but most of the non-ferrous metals have to be under the coil to be detected. This has true since the first VLF and even the old TR type machines. The long detection field for iron and small one for non-ferrous metals was how we use to tell if we were over iron. With a threshold and the pattern I illustrated those long nulls no longer are there so we only hear some very quick ones for the other metals. It is not perfect but the nulls are greatly reduced to the point where I don't think there is a problem. Even with this program I make sure the silver and copper areas of the display is clear.

It gets to be without thought that the tones, tune played, ICONS, and depth reading are checked for a very smooth search through heavy trash and I am finding good very deep targets in areas that once were very difficult to hunt for all the trash. The major problem for me for a long time was having the Audio Gain set way higher than needed. I see no loss of depth with the Audio Gain set to 4. It is when sensitivity is dropped way down that depth is lost. If we have our TV volume up real loud and reduce it then at first the reduction seems like a lot. However if we start with a lower level it sounds OK. Once we give our ears a change to get use to the sounds at an Audio Gain of 4 or 5 we actually find that we are hearing better as too many targets are kicked way up to muddy the targets when the gain is up around 10.

 

[Tony N (Michigan)]

You said to :
"Go to Audio and set the threshold tone to the lowest setting, this will be the low tone for iron for tone ID, set the variability and limits by using IRON, a NICKLE, and quarter."


How does one get only three tones for Iron, Nickel and quarter?

How does one set the variability and limits to Iron, nickel and quarter? I have the Explorer XS.

 

[Cody]

The threshold tone is the lower end of the tones and limits is the upper end. If we set the threshold tone to the lowest value then low tones for iron sound the same as the threshold but when audio gain is set to 5 or less will be modulated. This is how to keep the iron tones down low, almost in the background, except for the stronger surface iron. Even the surface iron is not so loud that it drives the user up the walls.

If we decrease the threshold tone, Limits and Variability to the lowest setting we will hear a constant tone for all target like setting constant for sounds in the menu. Lay a piece of iron, a nickle, and quarter on the floor. Set the variability to around 6 or so and sweep the targets while the limits is increased one click at a time. We will start off by hearing low tones for all three targets. As the Limits is increased we will reach a point where we hear three tones, a low tone for silver, a mid tone for the nickle and a higher one for the quarter. This is the typical three tone operation we see on most TID detectors. Some have added a forth tone. These three tones are much easier to work with than to have variability and limits at max, in my opinion, as we get rid of all those ultra high tones. I fine tune variability and limits for the headphones I am using. I don't see much value in 31 pitches for all 31 conductive or ferrous levels as I think for the most part we just hear these as low, medium, and high but the above will clear up the tones nicely. It is kind of like a scale on a piano so we use threshold tone for the low end and limits for the high end of the scale and then use variability to give us a clear distinction between the tones, mostly the mid and high.

This process of getting a "great heavy trash program" seems involved which is why I think it is not delt with in the Owner's Manual. Once we walk through the process we see that is it very easy and can be used for a very nice clean ground and heavy trash with a few changes. Once of the first things we will see is those signals that at way down at the bottom of the depth indicator that we did not see that much before. I think the depth indicator indicates 6" if half dark and 12" when clear. I see hits now down at the very bottom of the indicator and am doing pretty good in area I was about to give up on.

 

[Tony N (Michigan)]

I've been checking those settings out for the threshold tone, Limits and Variability. I'm going to have to try it in the field.

I'm still not sure about how you keep the machine from nulling over iron. I think you said you had yours set up so it wouldn't? When I used your program where the left part of the screen was blackened out it seemed painfully slow for me when I'd null over iron and have to wait for the detector to reset itself.

 

[Cody]

A small open at the very upper left of the screen will increase or decrease the nulls depending on the size of the clear area. I use an area a little smaller than what would be open if nails are accepted. You should hear threshold all the time other than very quick nulls on some trash. A major consideration is to have a threshold all the time pretty much like being in IM-16.

Let me know how it works out.