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.

Now more have been found with 16.1 grams of nuggets shown on the scales. http://golddetecting.4umer.net/t24844-members-gold-album

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.

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.

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.

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.

"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.

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.

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.