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New way to determine bottle caps with new HF coil?
Posted by: unearth
Date: August 21, 2017 07:57PM
Ok folks, who has figured out how to tell bottle caps using the new HF nine inch coil? I have tried by making a same program only changing the 28kHz to 14kHz and it doesn't seem to work as well as changing from 12kHz to 4kHz. I've tried the pull back option and it still seems sketchy on the effectiveness. Anybody got any ideas?

Re: New way to determine bottle caps with new HF coil?
Posted by: Strobing_NYC
Date: August 21, 2017 09:00PM
Dig them :)
All I have come up with using the elliptical

Re: New way to determine bottle caps with new HF coil?
Posted by: Listener
Date: August 21, 2017 10:15PM
Just dig em and surprise yourself by finding multiple coins beneath, or that it is a quarter on edge. I am finding my good finds have increased more than just a few times in the past couple of weeks by just getting them out of the target field.

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Re: New way to determine bottle caps with new HF coil?
Posted by: Tony N (Michigan)
Date: August 22, 2017 07:03AM
I don't have an HF coil but, would the XY screen give a telltale sign of a rusty bottlecap by having the lines go right to left or having squirrely lines?

Re: New way to determine bottle caps with new HF coil?
Posted by: Goldpick
Date: August 22, 2017 09:22AM
Quote
Tony N (Michigan)
I don't have an HF coil but, would the XY screen give a telltale sign of a rusty bottlecap by having the lines go right to left or having squirrely lines?

It should do using the xy screen, or alteratively up the silencer value until the caps start to break up or even disappear completely. I know the silencer diminishes depth ability on deep/faint or smaller coins, you just have to compromise on whether you are looking for shallower recent coin drops, or deeper targets with the silencer turned off.

I do prefer to work in layers, diggIng out the shallower targets initially (both the good & bad), and then running over the same area again with different settings to clean out the older/deeper targets. It just makes more sense to me doing it that way, then you don't have to try messing around with ideal settings for both deep and shallow targets, whilst also trying to contend with the shallower modern junk that might be masking good finds.

As for digging out junk targets, a while back I dug a large piece of canslaw at the base of a tree, only to find a completely masked silver florin sitting several inches further down directly beneath it. So yes, it does at times pay to clean out junk in the process of detecting a site, all depends on how much patience you have.

I'm sure others do it differently, just a personal preference.

Re: New way to determine bottle caps with new HF coil?
Posted by: Listener
Date: August 22, 2017 09:43AM
Quote
Tony N (Michigan)
I don't have an HF coil but, would the XY screen give a telltale sign of a rusty bottlecap by having the lines go right to left or having squirrely lines?

Tony it works on the ones deeper and rusted and the bent ones, however I find some of the newly dropped ones in the grass not visible mimick the straight lines of a quarter quite well. So I get it out and won't have to deal with it next time round. In an old park with potential silver/jewelry why leave them, then want someone too come up with a program to see through the trash. Dream on. The Deus is good in some cases not all.

Re: New way to determine bottle caps with new HF coil?
Posted by: Kickindirt
Date: August 24, 2017 12:07AM
One tell take sign on the old rusty ones is that the ground mineralization bar will spike everytime on an old rusty cap. If ur in high iron site with junk everywhere will be hard to tell. In a park no prob.

Re: New way to determine bottle caps with new HF coil?
Posted by: Listener
Date: August 24, 2017 09:43PM
Good observation. I went out this evening to check it out and found mine does about half way up. Also on old sprinkler heads that not only scream real high but read 95-97.

Re: New way to determine bottle caps with new HF coil?
Posted by: unearth
Date: August 24, 2017 11:10PM
I think I found another way...while detecting today I got several high tone signals, but NO vdi readout. I was using 28kHz on the nine inch round coil when this happened. Every time I dug this signal it was a bottle cap. Some rusted, some not. When the target was a quarter, 96-97, the readout was pegged at that number. This worked for me today in the park I was in. I will do more testing at another park tomorrow.

Re: New way to determine bottle caps with new HF coil?
Posted by: LTimedigger
Date: August 27, 2017 05:41PM
Thanks for the inspiration. I've studied statistics, so while I probably would not remove the caps in the cleaner areas, I have seriously thought about doing the "clean out" approach in the really trashy areas where I've found really good stuff, especially where theres tons of caps as I know they hide coins more than other trash. thanks

Re: New way to determine bottle caps with new HF coil?N/T
Posted by: LTimedigger
Date: October 04, 2017 09:09AM

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