goldenoldie

There are some impressive test results on larger gold with the QED in a comparison test against the GPZ and GPX now  posted on the Finders forum here in Oz.

It seems that the link I posted above of some gold found with the QED has been removed, so sorry about that.

However another pic of further recent gold having now been detected with the QED, although nothing of a larger size than the other amount of nuggets that had been detected.

http://finders.com.au/forum/viewtopic.php?t=9362&postdays=0&postorder=asc&start=975

Hopefully this result does not get removed as what occurred on the other.

On ‎28‎/‎01‎/‎2017 at 10:17 AM, Steve Herschbach said:

Well, at least one guy finding gold with a QED...

https://www.prospectingaustralia.com.au/forum/viewtopic.php?id=20756

Now more have been found with 16.1 grams of nuggets shown on the scales.

http://golddetecting.4umer.net/t24844-members-gold-album

33 minutes ago, Lunk said:

The first thing I noticed when listening to the audio is that the threshold level seems to be set too low, which clips the target response; a faint target below the clipping point will not be audible. Also, notice how the target response is inverted. Instead of the traditional high-low tonal response to a small nugget. the QED produces a low-high response. 

Going on reply #273 by the developer the BIAS adjustment may have something to do with what you have noticed. 

Also it appears the prototype using in the video was an earlier version and now the current one produces the traditional high-low tone response on small nuggets. However there is now a option to reverse that response if one so wishes, as is on my GPX.

Many are conditioned to the high-low on small nuggets and I assume maybe the reason for the developer's decision.

5 hours ago, Jin said:

Not sure if its just me but the sound that detector makes is annoying. Didn't seem to be any difference in the audio levels when he picked up the target before digging, to when he was directly swinging over the gold. Usually you get a faint target response and as you dig deeper the response gets louder until it blanks out when directly over the target. I'm in no way an expert (only been detecting a year and a bit) but that's what I noticed when watching the video. 

To me the audio response did appear to get louder as the coil got closer to the nugget. However the signal response at the surface, before the nuggets were dug, did appear loud so I would have liked to have seen the operator lift the coil up off the ground until the signal response was faint. Although not the ideal way for the overall depth potential of the QED with the 8" mono on those sized nuggets, it may have given some idea. 

1 hour ago, Norvic said:

There its weight and its ability to use the PIs coils make it attractive, I`m thinking along the lines of a sadie coil, to complement my use of the Z.

It certainly would have a weight advantage with the 12" Evo coil over most other PIs and less than the SDC even without its batteries installed.

Also appears able to accept any brand of mono coil of all sizes large and small down to the sadie, 8" and 6" rounds.

Maybe we not get our hopes up too much as it may not reach the outright depth of the GPX & GPZ.

It appears to use a completely different way from what we are use too, to set it for the best target response by using the Bias and Volume. The Gain according to the manual does not increase depth and acts as an amplifier.

The Mode could be different timings and maybe one of them is suitable for use on beach sand with little to no mineralisation and for Relic and Coin use.

When this BW fella decided to remove the internal Lithium Ion battery from inside QED's control box and use an external  battery holder attached to the top of the control box and then use Nickel Metal Hydride batteries it seems he has now listened to the fallout.

Therefore he has now come up with using a external battery case that could hold up to 3 packs of Lithium Ion batteries that could allow up to 40 hours of operation.

Once it is setup it would allow balanced charging without removing the cells and then having it attached to beneath the arm rest it would also counter act the weight of the coil at the other end of the S shaft  and lower stem.

On 12/8/2016 at 1:46 PM, AussieMatt said:

I too await for independent testing but can't help thinking that those who have been unhappy with using a Whites TDI or Garrett ATX in Australia won't find it any better? Time will tell I guess & there's been plenty of time for Bugs to iron the bugs out 

Yes I agree in that it may be an alternative to the TDI or ATX and at half of their cost price.

If we are to believe the air test results and if it is able to handle our hot Aussie ground well enough and translate a similar depth advantage in the ground over the Whites and the Garetts then it may be worthwhile.

6 hours ago, vanursepaul said:

Probably because he hasn't got time to video every dig he makes....and he certainly doesn't have to prove anything, about anything, to anyone.

Now we do know the Goldhounds put together great videos of their missions every year, so hang on and there will be plenty of live digs.... In the meantime, I wanna make some of my own... digging gold....  not air.

Not being rude Jasong... But the rationale.. that if  x=y, then y=? doesn't mean anything... X is always an unknown,  right?  ( or maybe a variable)

I scour the internet nightly for live digs with the 19....nothing yet..

"Well mate" to coin an Aussie saying, each to their own so as far I am concerned and without video evidence I do not believe the depth this fella speaks about 35" depth on the 66 gram specie, and you can believe what you wish. 

1 hour ago, vanursepaul said:

I would rather see a live dig...air tests don't really mean much to me,  except that the machine is turned on....

They seem to create a big stir about nothing. Am I wrong? Seems like wasted time.

Live digs are the cats a..

 

Yes I agree also with "Live Digs" so why wouldn't he video such an exciting find with the new big coil at an outstanding depth and record the whole event to prove beyond any doubt.

On ‎24‎/‎11‎/‎2016 at 2:20 PM, jasong said:

That's officially the deepest I've ever seen a nugget detected then, just wow since it's "only" a 66 gram speci and still getting that depth. That's 35 inches! Nice one.

Any chance you could do a quick air test on it so we can relate in-field performance to some of the air tests published?

The air tests that jasong refers too that were published only showed a maximum air depth with the new 19 inch coil ranging between 16.5 inches to 19 inches " on a 192 gram nugget although the best depth of 20 inches was on an 89 gram nugget.

Hopefully then as jasong says, could Gold Hound do a quick air test with the 66 gram speci.

Sounds to me that the US ground will have to be the saviour for this 19" coil by being able to operate the GPZ in its Ground Type setting of Normal instead of Difficult as the majority of ground here in Oz dictates.

As in the post jasong refers too then thankfully the ground allowed the GPZ's Normal ground type setting to be used.

When operating my GPX in Normal, whenever the ground allows, and using a larger coil I too have found that a larger coil does indeed run quieter than with a smaller coil.  

Therefore I do need operate my GPX in Normal with a larger coil more often as I have become too accustomed with FG and Enhance and not checking if the particular ground I have chosen is too minerialised for Normal or Sensitive Extra.

Wow even a 25" mono on a 5000 was unable to get a signal on the 6 ounce piece no matter what settings were tried.

Surely Normal  timing should have got a response with the 25" coil although I can see an EVO coil in the background but not a 25" coil .

I would have liked to see video clip of that event.

Each to their own is all that I will say and until the in ground results that I have been privy too on large gold at depth with the GPZ has had a major increase once this 19" DOD is released and tested again I will stay with my observations as indeed all others here will also through their experience and observations.

1 hour ago, Reno Chris said:

My opinion, having used the standard coil on the GPZ for a considerable time, is that on big deep gold the 14 inch is roughly equivalent to a GPX running a 20 inch mono and maximum gain, while on small, sub gram gold the GPZ will do better than a GPX running something like an 8 x6 mono. The GPZ sees AT THE SAME TIME the bigger deeper pieces and the smaller tiny bits - and that's the standard coil.

My expectation on the larger coil is that it will likely outdo a GPX with a 36 inch coil on bigger, deeper stuff. However that is only speculation as I've not tested the GPZ 19 yet.

I would agree on small sub gram gold the GPZ will do better than the GPX although a small flat wound type mono on a GPX would get closer than a standard wound 8 x 6 mono.

Now when you say on big deep gold I am most interested on what size big gold do you speak of..?.

Also in regards to the 19” DOD to likely outdo a GPX with a 36” mono then from in-ground results that I have been privy too comparing the 14”DOD on larger gold to a normal wound mono of similar diameter then I will say your 36” size coil on a GPX is most definitely speculation.

2 hours ago, Tortuga said:

It's probably a "two in one" coil design like the stock 14" coil. Small coil in the middle, big one on the outside. Check Steve's pics of the inner guts of the 14" coil to verify this. 

I understand how it is designed however i should have been more specific in my previous reply in that as I see it, it is usually the size of the "transmit winding coil or loop" that is the determining factor that governs the depth potential of a coil.

Therefore in this coil it's transmit coil or loop is only 19" x 9" although the way that transmit winding is wound and how it differs compared to the way a normal mono coil winding is wound then at a guess that might produce some extra depth potential.

A case in hand is the way the new Evo and Elite mono coils are wound that has produced extra sensitivity and depth over a normal wound mono coil of similar size.

The question as far as I can see is what size normal wound MONO coil is the equivalent to this DOD or so named Super D type since by way of its design it uses a transmit coil much smaller then its overall diameter compared to the normal wound MONO coil whose overall diameter dimension is the size of its transmit loop.

This is the question that I ask myself.   .  

As I see it, it is only a 19" x 9" coil due to the size to its centrally located transmit coil or loop.

Thanks RDD for your reply and the pic of your nugget.

Unfortunately Iron and Steel produce a better response than Gold.

5 hours ago, RedDirtDigger said:

Since upgrading from a 4500 to a 7000 I have had to drag the crowbar out of the truck to dig holes many more times compared to when I used the 4500. cheers RedDirtDigger  

Are you are speaking about having to punch through hard cap rock with a crowbar instead of digging way deeper holes compared to the 4500?

Would love to see some pics RDD of those holes you speak of that you have had to dig with a crowbar.

I suppose there is a skid plate attached to this new coil however looking at how the loops overlap one another the skid plate must have a step up and down at their overlap points.

9 hours ago, PhaseTech said:

Will it punch to 3ft on a 2oz lump ?? 

Not a hope as far as I am concerned.

53 minutes ago, PhaseTech said:

Yeah it'd be very interesting to see if go up against not only the 18 Elite, but also 22" Coiltek Goldstalker, and 20" and 25" Nuggetfinder advantage coils.

Yep would be an interesting test alright as I reckon even my 25" mono would give the GPZ 19 inch'er a run for its money.

I've used all the new coils, some a lot and others not so much. 

 

I've got some video footage comparing the 12" evo, 14" elite, 15" evo, 14" Detech and 15" DD Detech. 

 

Just got to find a spare hr to put it together. 

G'day,

I also look forward to you finding a spare hour to post a link to your video footage comparing the new coils you mentioned.

Thanks in advance.

Oh heck goldenoldie, let it rip! You won't hurt anyone's feelings. 

Nah..... thanks mate.... better left alone.