auminesweeper

Anyone who uses a GM over here is due south of crazy, the old iron particles in the ground from the last 4 or 5000 years would drive you nuts, But good on them for being brave, That's a great result from the GM, J.

Well GB what proved the high Gain issue to me, was me and a Mate were both using MXT's with the 12" coils, I was running mine just on the edge of the 10+ area remembering that the MXT's dial goes up to 10+3 and he was running his in the 6.5 to 6.7 yet he was digging them large English Penny's at over 13"and a half inches where all my finds were between 5 to 10" range and I put that down to the fact that I was Blasting ALL targets good and bad where he was just feeling his way through to each of the good targets, Another thing to remember is running 2 high powered identical machines with big coils don't play well together because we could hear each others machine approaching from a long way away when the Gain is up around the 10+ area because they will cross talk from well over 2 to 300 feet away starting with a soft pulsing sound and then ending up sounding like a V8 with a couple of plug leads off, So there is a lot to be said for running lower gain settings, hope this helps, John.

I think you did well to find those bits, So many people just have to run their machines flat out, Dropping the Gain down like that allowed the machine to see what is in the ground, Under a lot of conditions using high gain can be likened to driving in the Fog using high beam which in effect Blinds the detector, Lowering the gain might not provide maximum depth but it will unmask targets giving the detector a chance to see, Knowing when and where to do that is a Skill that many detectorists lack, So well done, thanks for posting. John.

I agree with what someone said earlier about it not quite being sensitive enough for small gold, because quite a few machines will see your bare hand at 4 to 6 inches yet you are only getting 2 or 3 inches on the nuggets with no signal from your hand, Where it is really impressive is how it compares to the AT Pro, It is still a very worthy machine and Garretts have always been solid performers. John.

It seems much better than the AT pro but it equal to most other brands on some targets.

EDIT, reply not needed, removed by me.

Ok then Delete my post if it offends the morals of the forum.

Ok that's fine, I am not asking anyone to believe it, It only maters to those who were there, Here is a video of how DD's create target masking using a mid priced detector compared to a Childs $100 dollar Toy detector, that shows Iron nails above a coin, but you need to watch it all. J.

If Tom's way works for you then that's all that matters, quite frankly I think that taking a PI in to a junk filled site first is crazy because a person could be stuck cleaning a 20 x 20 area for days on end while others are zipping around you making finds by the dozen. The Goldbug Pro is another very clever machine and what it lacks in depth it makes up for in other things. J.

And I think it was either The Tesoro Silver Sabre or the Silver Umax, But it was called the Silver something and it rang clear as a bell J.

I posted a video here about a month or two back where one cheap machine was unmasking targets that were on different plains, Tom is a very skilled detectorist, But as detectorists we all tend to copy the Norm and what others say, That is not what makes finds, In junk filled sites the norm is to use a small coil and a fast machine, and then we here people saying that sites have dried up, If I had done what everyone else does I would have never of found the Gold and all the Coins that everyone had missed since 1967 in an area that had seen every detector made since that date due to the Area being a Test site and has been victim to hundreds of rallies ever since, A good single frequency machine will clear out all the good stuff from a junk filled site when you use both large and small coils, once the targets are beyond the depth of a VLF then that is the time to use a PI, If you do what you and Tom say then you will have 10x more targets to dig and using a PI is hard work even in a clean site, But by using the machines in the right order will remove many targets allowing you to hear the much fainter targets and ignoring the loud over loaded signals because the VLF would have already told you that they were junk. Doing what other do will just give you the same results as they got, But if you want to make good finds nower days you need to think out of the box and Do what others are Not Doing. As for unmasking we already have technology that can do that, It is just that not enough people know it or know how to do it, This is more about the skill and knowledge of the user and picking the right machine, where some folks get suckered in to buying a certain machine by mate and companies they automatically insist they have the best machine just because they pay top dollar for it, J.

Well there are a lot of fast machines out there but I think the F-75 is about as fast as you need, Speed has it's place and the F-75 in Deep is a good combo to, I think that anything faster than the F-75 is just not needed. J.

Or you could use a single frequency machine with a fast recovery and get 99% of the finds and the use a PI like the TDI's and only dig either low or high conductive targets. J.

That's a great video, thanks for posting it, Another reason I sold my E-trac was that it would give you multiple ID numbers where I could get up to 7 or 8 sets of numbers and it would do the same in air tests too so there was no way could I get a baseline of what those target ID's should be, I took it and my other machine that was fitted with a 12" concentric, the ETrac ID'd 3 coins correctly and it ID'd 7 or 8 coins as junk, my other machine only got 2 or 3 targets wrong, Then came the Fine Gold chain test and it just could see them regardless of what coil was fitted, This new 800 appears to be a breath of fresh air in that respect, I would be happy even if it just had one frequency as long as it was fast and did not let me walk over targets, J.

I like how he starts showing off the size of his arms and the next thing he does is complain about the weight of the TDI Pro, LOL.

I agree my pet hate about BBS/FBS is the way they blank when they pass over an Iron target and they don't switch one until the coil is well past it and then any good targets in close proximity are lost for good, BBS is the worst of the two, because even though the Sovereign GT has an Iron mask switch with on and off positions that Iron mask is still running in the background so you can't disable it even in the off position, And when you sweep over an Iron target it nulls but if there is more than one Iron target in the ground the Threshold may not return until you have made many sweeps of the coil and only seeing side by side testing made me realise just how many Good targets I was missing and both types lack sensitivity of Single frequency machines to tiny Items and nuggets. This was the main reason for me changing brands, But if Minelab would have had a fast machine like this back then I would still be using them. John.

All Gold is Beautiful, And the story about the finder and the finding gives me the biggest kick, Going out on a Limb here, But a good story even tops a good beer, well almost J.

depending on your GND Numbers in the right meter the depth can vary, If the numbers are higher it makes the machine a lot hotter but if the numbers are high means you have a lot of mineralization which then reduces the machines abilities to see the target, So it's a fine line in getting the Balance right. Maybe you should try the test again on this time try and run the SAT as low as possible and run the Gain up high as possible that will increase the depth, because when you run the MXT and the GMT up in the Hyper SAT range it can dramatically reduce the depth of the machine, The Ideal setting is for High Gain and the lowest possible SAT speed without loosing your threshold, The Hyper SAT area on the MXT and the High SAT speed on the GMT is only for use in Hot Ground and if you run the machines up in that range it can cost you up to a 1/3 of your depth so try to resist maxing out the SAT, hope that helps, John.

Apologies, I misread your post, the GMT is a hot machine on tiny targets, If you have the 6x10 on your MXT or the 4x6 shooter they are not very hot coils and the 5.3 is much hotter and it will see tiny bits when you crank it up, If you are air testing your GMT and MXT make sure you have the GB locked, and on normal coin sized targets the MXT will get them a bit further than the GMT when fitted with the 6x10 coils, John.

Moe, a quick test, depending on the coil your MXT came with when you max out the Gain it should be able to see your hand at around 4 to 6 inches in the prospecting mode, you will hear it go from the zip zip sound right down to a waver in the threshold, hope that helps, John.

Yeah JW your right about the scoop, a lot of modern VLFs will do that too, My VLF will pick up my bare hand at 4 to 6 inches using the standard round 10" coil, I had to import a scoop from Miner John in the US. no one had them over here. We all complain about how detectors have got stuck in the past, although the depth etc has not changed much but the machines seem to be a lot hotter, I think it would be hard measure the difference between the GM and the GB 2 along with a few ohers, J.

Nope me neither, He gives my backside a headache, J.

It's funny Steve, because you know how we get charged a premium over here for stuff, well my Dealer sold me my MXT All Pro 2 years ago for about $719.19 and I got one for someone the other day ( just over a week ago) for the same price, other dealers are charging $915.69, and I only paid $786.00 for the GMT, And you are right about the MX Sport, to this day I have never seen a person using one, the trend seems to be for the Nokta/Makro GBP and GB2 etc and of coarse the new ML machines, but even with the limited offerings it's a fun time to be buying VLFs because there is something for every budget. J.

Coke or burnt Coal sounds like Hot rocks with a VLF, I also check out where people had lit a fire and found a load of modern coins, Using a concentric coil did allow me to hear/find the bottle caps, but the burnt wood and the scorched ground did not make much noise if any, J.

This is such a great thread, But I got thinking with my mind becoming full of "If Only's" because at one time or another we all crave more depth from our machines and after reading a few of the GPZ threads and how it is best described as a Super VLF and then I thought of I wonder what it would take to make a normal VLF ignore the ground in such away that the signal would be able to penetrate the ground to the maximum out put of the machine, Some VLF's Air test why beyond what any PI does and some VLF's those figures are totally obscene, wouldn't it be great if someone could get that power to ignore the ground and just do it's thing, Ground balancing is a very cool feature and how it allows the machine to run stable but the machines still can't penetrate the ground like they do in mild dirt or in the Air, Some people have made posts about doubling the depth and then quoted the power figures required in order to get that power, But what if we did not have to double the power, what if all we needed was a better way to get that power we already have in to the ground, I think the person or company that could make a VLF do that would turn the detecting world on it's head. This almost sounds like what is going on inside the GPZ but not quite ? some place I searched back when I owned my sovereign GT It seemed that I could not get anymore depth than 6 to 10" and then the machine decides that it wants to see a small lead toy at 17" using the factory coil, this had me asking my self all sorts of questions and started to give me doubts too mainly How would I ever know if it was searching down deep or not, So I tried bigger coils and found nothing so that helped a bit but this left me wondering how on earth did it see that lead Toy Soldier that deep, I have never repeated such a feat using a standard VLF machine fitted with a standard coil ever since, But it does show that they can do it when all the planets align, J.