Minelab Treasure talk- Bottlecaps

[tnsharpshooter]

https://www.minelab.com/anz/go-minelabbing/treasure-talk/dealing-with-bottle-crown-caps

 

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[WIDirtFishing]

https://www.minelab.com/anz/go-minelabbing/treasure-talk/dealing-with-bottle-crown-caps

Interesting... thanks for sharing

 

[jeg208]

Wow, great stuff! I will definitely be giving this a try

 

[Echoplex]

It's a great tip and makes me wonder if they could write some sort of bottlecap algorithm for the Nox with a future update. If the machine is already analyzing 5 frequencies at once, you'd think they could create a rule that says if the VID is more than x number difference in 5 kHz, then iron-tone it or make distinguishable somehow as a probable bottlecap. I'm sure it's waaaaay more complicated than that, but just wishful thinking that utilizes the whole multi frequency tech. Maybe they're saving that kind of juice for the Nox 1000. You know there's going to be one eventually.

 

[tnsharpshooter]

Or maybe the Nox 1200. Lol

 

[flgliderpilot]

This is an interesting trick, but it's not hard to identify bottle caps... sometimes you get tricked so this method IS useful, but most of the time simply swinging the tip of the coil over the target is enough to identify a bottle cap. Neat discovery, I already have a custom profile already set up (for three tones) so changing frequencies is not so easy in my case.

 

[Bquamb]

Gold star post and bookmarked. If only my Nox was on its way. 3rd in queue but won't see till likely my birthday late april.

 

[toddbbq]

I have used the coil tip method in all metal frequently and have done pretty good at identifying them as bottle caps BUT I have had quarters do the iron grunt also but they were deep with no other iron with the target. Maybe they were on edge as to why the signal was bouncy.

 

[flgliderpilot]

I have used the coil tip method in all metal frequently and have done pretty good at identifying them as bottle caps BUT I have had quarters do the iron grunt also but they were deep with no other iron with the target. Maybe they were on edge as to why the signal was bouncy.

On edge or just at the edge of max depth. When not sure, this single freq method posted is really a great 2nd option.

 

[Wiganer]

I went to try this trick today at the beach, but in beach 1 or 2 multi is the only frequency option on the 600

 

[Iron Buzz]

This is pretty much what Deus users do, except that we switch to a lower frequency and watch for ID change.

 

[GroundBalanced]

I went to try this trick today at the beach, but in beach 1 or 2 multi is the only frequency option on the 600

Wiganer, I think the process is to hit the frequency button (while in beach 1/beach 2) and change the frequency to 10khz to check the target and see if it switches to a different target ID.
Now, whether or not switching it to 10khz will cause the NOX to false because of the mineralization in the saltwater and not allow you to see the target ID change, is unknown (since I have not tried this process at the beach).
I have used the method of swinging in tiny chunks towards the object's edge to hear for the grunt i all-metal mode, and that has so far proven 100% in my minimal beach testing of bottle caps, but I still had to dig them up to verify it's 100%. I'm almost to the point of trusting it, but would love to see this 10khz switchover technique also work - so that i have 2 ways of determining target without digging 6-12" deep holes.

 

[Professor of Engineering]

Thank you for sharing!

 

[charlives]

I guess on the 600 after switching frequencies we'd have to noise cancel again.

 

[GroundBalanced]

Just fyi, I ran across this video that shows a pumping test to weed out rusty bottlecaps and some other junk.
Worth a listen/view i think.
Just another test you can run before digging up that rusty bottlecap that may have passed other tests.

 

[vferrari]

Wiganer, I think the process is to hit the frequency button (while in beach 1/beach 2) and change the frequency to 10khz to check the target and see if it switches to a different target ID.
Now, whether or not switching it to 10khz will cause the NOX to false because of the mineralization in the saltwater and not allow you to see the target ID change, is unknown (since I have not tried this process at the beach).
I have used the method of swinging in tiny chunks towards the object's edge to hear for the grunt i all-metal mode, and that has so far proven 100% in my minimal beach testing of bottle caps, but I still had to dig them up to verify it's 100%. I'm almost to the point of trusting it, but would love to see this 10khz switchover technique also work - so that i have 2 ways of determining target without digging 6-12" deep holes.

You can't change to single frequency in beach mode on either machine. Beach mode only runs Multi IQ. You either have to switch to a different mode (600) or make use of the fact that you can store a version of any "single frequency" compatible mode (typically Park 1/2 or Field 1/2) in the User Profile slot on the 800.

Frankly I found that using the iron grunt method is usually pretty reliable for most bottlecaps or just scoop the damn thing if its in the sand and iffy (grunting and bouncing vdi), takes just a few seconds.

 

[GroundBalanced]

Tks vferrari - you are accurate. I thought i could hit the freq button while in beach mode and it would switch over to the first mode that could facilitate 5khz. But nada, it does nothing. haha. So yes, you would have to switch over to Park 1 or other, to try out the single frequency test.

 

[Owassokie]

I don't have mine yet. I see the talk about beach mode but if I'm in one of the park modes or my user saved mode, can I just change the frequency over to 10kHz? I like the technique but I'd like my user save mode to be something I save for coin shooting.

 

[jeg208]

I don't have mine yet. I see the talk about beach mode but if I'm in one of the park modes or my user saved mode, can I just change the frequency over to 10kHz? I like the technique but I'd like my user save mode to be something I save for coin shooting.

Yup! There is a delay though when you switch frequencies, so this is probably the most time consuming method. It does work, but I would recommend just going to all metal and listen to grunt, or edge test for grunt without going to all metal, or try the coil pump method, as they are all faster than changing frequencies. Just another tool for the toolbox though!

 

[GroundBalanced]

I went for a spin on the Beach yesterday and tried out the pump-method for bottle caps/pull tabs. I'll be honest, that thing worked pretty good. I would go along using BEACH2, if i hit something that was in the 10-18 range I pressed the all-metal button to hear the grunt. If i heard no grunt, i would try the approach-method where you swing back and forth as you approach the target to listen for the grunt. I would hear that & be pretty confident it was not a solid 15/etc anymore, but more likely a bottlecap or tab. Then i tried the pump method (make sure all metal mode is on) and that worked nicely too, even when the approach-method didnt work. Ofcourse i had to dig some caps to make sure it was working, but everytime i did, it was a cap.
Still more testing needed, however, good news so far.

Now, that goes to show you i didn't have a very lucky day yesterday, but the sun was shining, the temps were 74, and the water is getting warmer, so no complaints. Clad, Sunglasses, caps, tabs, and odds & ends.