Another Modded Gpx5000 Comparison Video

[Aureous]

Maurice Coppola (a very well known Golden Triangle prospector) has another video comparing various detectors and coils. Well worth a watch.

 

[Drellim]

We’ll I guess my 5000 ain’t missing much with the correct settings   Modified  stronger not modified ain’t missing much now we need To do A speci test  like

to see that  no detector does it all but I’ll stick to the modes2200 and a 5000 and a gold master  for the piles  but I am tempted honestly to modify the 5000 ?

[dig4gold]

On 1/4/2024 at 1:58 PM, Drellim said:

We’ll I guess my 5000 ain’t missing much with the correct settings   Modified  stronger not modified ain’t missing much now we need To do A speci test  like

to see that  no detector does it all but I’ll stick to the modes2200 and a 5000 and a gold master  for the piles  but I am tempted honestly to modify the 5000 ?

When you say gold master are you meaning the Whites Goldmaster or did you mean to say Gold Monster?

D4G

[phrunt]

Nice, he's not going to miss any coke cans with his modded 5000.

Someone should give the man a 17" CC, 22" CC or the monster 32" CC to try on that 7000, if he's willing to mod a 5000 by heavily changing its main PCB you would think he would be willing to give a coil cable a snip and join 5 wires.  It'd be interesting how well then he does at finding coke cans.

I have no idea why he's surprised an 18" Mono does better than the 25" DD coil, it's rather obvious the 18" is the bigger coil when it comes to depth of targets.  That's where the GPZ is impressive, it's DOD coils often keeping up with or exceeding large monos on this big deep targets.

I find these mods very interesting though, they're expensive but I guess it's not easy to mod the PCB and the research that's gone into making a detector better than Minelab could at the time.  I might give one a go one of these days, the new generation of mods seem far superior to the early ones.

[Redz]

12 hours ago, phrunt said:

I might give one a go one of these days, the new generation of mods seem far superior to the early ones.

Yey. I will be waiting for your review

[Drellim]

D4gold   It’s the whites  gold master   Will like to see some better  testing  

[Aureous]

17 hours ago, phrunt said:

Nice, he's not going to miss any coke cans with his modded 5000.

A crushed coke can is a fairly good analogy to a less-than-ideal gold conductor. A solid lump of aluminium or lead would be heard far deeper. Aluminium is of course, in the same conduction range as gold, but because the can is not solid, its similar perhaps to a large specie.... Almost 1 meter depth is pretty good. Yeah some X coils on his 7000 would be an interesting comparison for sure....

[dig4gold]

The modded 5000 is a no brainer, I reckon, if you want to specialise in big deep gold. The proof is right there. Hands down the best hit rate. Many would have that 18" NF too. So put it to use.

No real surprise that the 6000 struggled. 

Yes, X coil CC's on the 7000 would have to be his next demo. That would be very interesting.

D4G

[goldenoldie]

3 hours ago, Aureous said:

A solid lump of aluminium or lead would be heard far deeper. Aluminium is of course, in the same conduction range as gold, ........ 

I expect why this block of Aluminium was created to mimic a larger Nugget of Gold for testing at inground test sites down your way.

[Chet]

GPX 5000, GPX 6000, GPZ 7000, Coil Air Tests
 In pursuit of large gold I have experimented with winding some test coils and did some air testing. Results are with my poor hearing and varying EMI conditions. But the measurements work for my personal comparison testing. I selected to use a USA $50 dollar 99% gold coin and a 4 inch square flat aluminum sheet that was cut from the side of a soda can as test targets. They are much easier targets than large gold nuggets but I wanted solid consistent targets for comparison purposes.  The measurements for the GPZ -34”x 17” are preliminary and will be finalized in Nevada this spring. I am working on a new GPZ 7000 coil and a new GPX 6000 coil. Since Litz wire is expensive it is reused for the next brainstorm that wakes me up.LOL
 Detector and Coil Description    Air test in inches   1oz gold coin    Aluminum 4” sq 
GPZ 7000 Tests
GPZ-34" x  17" EMI cancel mode OFF, 3lbs                   To be tested in Nevada this spring
GPZ-35" x  17" in EMI cancel mode                                       24                          40
GPZ-19 Minelab DOD                                                              25                           45
GPZ-14 Minelab DOD                                                              20                           36
GPX 6000 Tests   
30" x 30" = 34"RND 1.86mm flat spiral Litz wire                  27                            42
24" x 24"= 27"RND 1.86mm flat spiral Litz wire                   27                             37
23" RND  2.3 mm 14T 3 vertical rows Litz wire                    26                             36
17.5" RND 2mm Litz, spiral flat wound ID 14"                        22                             36
17" RND Vertical Wound 2mm Litz wire                                 21                             34
17" x 13" Minelab GPX 6000 coil                                            18                             36
11" Minelab GPX 6000                                                             17                             32
14" Minelab GPX 6000 DD Coil                                               14                             22
6" GPX 6000 DIY flat spiral close wound                               11                              21
GPX 5000 Not modified 
39" RND Flat Spiral Wound, spaced 0.5”                               23                             36
25" Nugget Finder mono coil                                                  22                             38
27"x27"   Flat Spiral Wound, spaced 0.4"                              20                             34
18" Minelab mono                                                                    19                             34
24" x 24" flat spiral close wound                                            19                             30
 30" x 30" flat sq spiral close wound                                      17                             32
17" Vertical Wound 2mm Litz wire                                          16                             30
34" x 17" figure 8, 13t, 1.8mm litz wire                                   15                             26
GPX 6000 17" x 13" Minelab mono using GPX 5000             14                             26