BFO "Discussion"

[Davor]

Maybe not trolling, but most certainly annoying. I tend to do things my own merry pace, so if that's slow for you, tough luck. I'm neither paid nor interested in jumping every time someone yells - hop!

[Tim]

I asked a simple question which those who should know, either refuse to answer or have an opinion that it warrants no answer. If you feel I am cracking the whip on you, or forcing your hand, I am sincerely sorry. If I am "cracking the whip" it has not resulted in an answer to a simple (I thought) question.

For Gods sake, can we just get back to the question- Will a PI see (said) gold through solid Ironstone. Will it see (said) gold better through quiet ground.
For the wanna-be politicians out there, I will rephrase to ANY PI, as I can see the pandoras box of which PI being used as an excuse for further un-necessary complication of a bloody simple question.

[Gwil]

Hi Tim

I don't think it's corporate disinformation as much as years of experiment and experience that makes people doubt that a BFO can outperform a PI detector. However there's only one way to find out - build an improved version and try it under real life conditions. Am I right in thinking that you haven't done this yet? I'd be interested in the results.

And can anyone answer Tim's question? I'd like to know, if only out of idle curiosity.

[Tim]

Yes I have and I am. The next stage is coil improvement, despite my current guesstimates on coil parameters being quite good, a 5:1 frequency ratio will be my next step. My laboratory is the bush. The question I ask I have my own answer to, so I suppose it is a loaded question. Call it a set-up to catch the liars, if you will. Truth talks. ON-ground experience talks. Others, well....they shut their cake-holes when they think they might miss out on a few bucks. A fickle mentality.
Lets just watch the protestations come in now. Waaa Waaa, spat the dummy.
It is the years of their combined and virtually fruitless experience that is the reason for this mentality. My aim is to level the playing field, not exponentiate profit. The big boys can then suck the lemons.
Long ago I had already had it up to the back teeth with this mentality. If I am accused of trolling, or banned for this then you can absolutely guarantee that following my path will guarantee results where they failed.

[WM6]

Is that a PI or vlf or other? .

VLF's in first line, I successfully tested this way Garrett AT Gold, Fisher Gold Bug, old Tesoro Diablo II, Tesoro Euro Sabre II (with small coil) and some other VLF's using small coils (5-7") if avalable. No tested PI was successful (honestly: no small coil was used along with PI and no sample time was set): tested different handmade PI's, Cscope CS4PI and Garrett ATX PI. Have old BH Outlaw BFO too, but it was not able to detect nugget under ironstone this way.

PS: As I see, adding pic in usual HTML coded link is now blocked in this forum? I can only guess why?

[Tim]

Fabulous, mate!
Thanks again WM6. You know, and I know......

[Tim]

I notice that you state in your biography: "I despise politics, disparity and corporates, as they beget each other."

Geotech is a place where people interested in metal detector technology meet and discuss various designs and projects. If you "show and tell", then don't be surprised if you get questions in return. It doesn't automatically mean that there's a conspiracy to steal your "Eureka moment" detector, or that everyone wants to tear your design apart and pick fault. Only a paranoid would think that way.

I refer to your eureka moments. I have none. Glad you bought up my political and corporate alliances, mate. Hows about you put yours up here too, or would that be "unfair"???

[Tim]

Your request has been granted.

Yep, Davor, an "unintended path". I am still talking about LF detectors now, so I presume the "unintended path"you refer to is anything you and Q deem not technical enough to stun a wombat.

[Davor]

Asking to split a topic was a good call. Your diatribe only proves the point.

I’m open to hearing what you have to say and having a discussion about it, but I have a policy of ignoring people who take a malicious approach to conversation. I felt something that you said fell under this heading, and if you’d like to try again with a kinder approach, I’d be happy to have a conversation with you.

[Qiaozhi]

YAY! Gwil, old mate. My IB and BFO will both see a 1c copper coin through a set of fencing pliers. But apparently that has no bearing on this question?????????????? Because, apparently it is IRRELEVANT.. to what I don't know, maybe it's irrelevant to having an oscilloscope. HAHAHAHAHA!
Maybe Whites, Fishers and Minelab just don't want us to know something?

Geotech is a forum for discussing metal detector technology. If you have a design you would like to share with others, then please post a schematic. Otherwise, what is the point of constant boasting with nothing to back up your argument? What is there to be gained? Unless you show and tell, others will [eventually] just ignore you.

Of course, if you think there's some sort of political conspiracy going on here, due to corporate greed on the part of the major metal detector companies, then why post here at all? Simply keep your "Eureka" design to yourself, and reap the benefits (if there are any).

[Nupi]

Geotech is a forum for discussing metal detector technology.

You're kidding me, right?

[kt315]

It is horrific hypocrisy to act like that and to judge on other people like that.
Your stupid nonsenses you are spreading on almost all topics on this forum should be stopped by moderators. Once for all.
Your low leveled mental masturbations are degrading this forum much. Your scribomania too.
I will now alert moderators to close this topic because it goes nowhere.

i remember ivconic as you closed my very serious topic inverted it in joked foolish. so i wait satisfaction.
why you are silent now like a mouse under a bed!

[crane]

YAY! Gwil, old mate. My IB and BFO will both see a 1c copper coin through a set of fencing pliers. But apparently that has no bearing on this question?????????????? Because, apparently it is IRRELEVANT.. to what I don't know, maybe it's irrelevant to having an oscilloscope. HAHAHAHAHA!
Maybe Whites, Fishers and Minelab just don't want us to know something?

The fencing pliers will increase the coil's inductance if presented parallel to the coil and the change will be even greater if presented end on to the coil, and this is also obviously dependent on the distance between the coil and pliers. It's rather obvious that you can only detect the copper coin if the pliers are nulled at a fixed distance and orientation before the coin is introduced, something that doesn't occur in the real world.

Ironstone usually contains magnetite which can be balanced out by most ground balancing IB and PI detectors and note that this null doesn't depend on quantity, distance or orientation. Magnetite also alters the coil's inductance and this is either ignored or compensated for by most IB and PI detectors but the poor old BFO sees the change in L as a target. The ground actually wins all contests here because it is hard up to the coil and totally swamps the tiny change caused by the target at depth.

Address these problems plus a few more and you will be famous.

[Qiaozhi]

You're kidding me, right?

I know I was stating the bleed'n obvious, but sometime you have to do that.

[Nupi]

I know I was stating the bleed'n obvious, but sometime you have to do that.

.