GPX 4500 with B Z Boster test
- Thread starter G0lddigg@
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SCROUNGER said:
This guy is a pro.
He find his fair share of gold. He offloads it
due to the large cost of buying a new gpx.
The last one he bought though cost him $4500
new And he has kept that one Due to the lower
Price and he won't be able to buy a new one
At that price.
He got that one cheap because there was
A package deal with the 2300 which was
Sold on.
GOlddigg@ that look like a old minelab 11 coil if you can compare a 11 inch commander coil to it you will find that the com coil runs quieter and is more stable you can run a higher gain 14 coils are on the way regards john 
AuMan said:
hey mate search mode is relevant to the settings yes, so i'm running custom then deep like you are, to me 18 gain is too high but we dont have fine gold on the 4500 enhanced is what i run all the time. remember too much gain can swamp a signal as well its a fine balance. **i'm no professional just my personal experience*
re full left that's the switches on the front mate
bang em straight to the left all left when looking at the face. when i was looking at buying a new detector i had quite a few lengthily discussions with local prospectors who support themselves 100% with prospecting there was one consistent theme amongst them. that is that the 5000 got pumped out at a phenomenal rate and quality control was poor. every bloke i spoke to had bought a 5000 at some stage or 2 or 3 but had held onto or repurchased a 4500.
The late 4500's were produced with a lot of control due to a large shipment of 4500s being stolen. You would think the opposite but minelab didn't want to send out any rushed units after making people wait longer form a stolen shipment. that's the story anyway.
The 4500 seemed to run more quiet under powerlines than the 5000's as well this ive seen personally so you have to wonder why? in theory the 5000 should be heaps better so a tunup should do the trick in most cases i would think. but possibly your atmospherics dont allow the same level of quietness that mine do.
I got this 4500 and the first thing i noticed after potting an 18 " goldstaker was that i couldn't hear a 1 gram piece very well.... shock horror so i did some research and some tests and found that the aluminum shaft was casing ground balance to balance out sharp signals. for about $185 i got a composit shaft from gold city http://www.goldcitydetecting.com/shafts.htm what a difference it made.
It shouldn't make a difference with the smaller coils but did with the larger. maybe there's some advantage there to be gained with yours? try removing the lower shaft and keeping the detector at distance and see if you can improve sharpness mate.
either way you are making me feel very confident in the 4500's abilities
re full l
old hand said:GOlddigg@ that look like a old minelab 11 coil if you can compare a 11 inch commander coil to it you will find that the com coil runs quieter and is more stable you can run a higher gain 14 coils are on the way regards john
hey mate thanks for the advice, i agree 14" is a good all rounder I dont swing this coil alot but found a nice piece last week with it.
it sure is an oldie...serial number is 00029
but it runs really well. The minelab coil is a commander coil mate always has been to my knowledge, correct me if I'm wrong .....To be honest mate i spent most of my first few months swinging the 8" commander mono to learn the settings and found it to be amazing. I have a 14 dd coiltek and 18 x 12 goldstalker that i'm learning to use but it picks up a lot of emi. I will most likely grab the new coiltek elite 14 mono after ive got this house move out of the way.
Teemore is lending me his 12 x 7 NF this friday as ive been putting off buying a NF for the new model due in 6 weeks.
G
Guest
I am confident in the 5000.
There were i think issues with the early 4500
As well.
To be honest I hired a 4500 from coiltek and
That machine run a very very smooth stable
threshold.
Ismael Jones uses a 5000, andy at coiltek for
A long time used one until the new machine
Came out, My friend uses one and then you
have Paul that uses one.
The other thing though a target in ground is
Different due to the halo effect so the key here
Is to swing it slow.
You can switch off a setting on the 5000 and it
Then becomes a 4500.
There were i think issues with the early 4500
As well.
To be honest I hired a 4500 from coiltek and
That machine run a very very smooth stable
threshold.
Ismael Jones uses a 5000, andy at coiltek for
A long time used one until the new machine
Came out, My friend uses one and then you
have Paul that uses one.
The other thing though a target in ground is
Different due to the halo effect so the key here
Is to swing it slow.
You can switch off a setting on the 5000 and it
Then becomes a 4500.
good mate you need to be confident in your machine ive used alot of awesome 5000's over the last 2 years i'm throwing ideas up as there seems to be an issue with Aumans 5000.
I can put my .1g piece on the ground anywhere in red earth around the triangle to tune the detector if small gold is what I'm after. How dId you go with the 0.03 gram piece mate? any luck or bit hard in the city to test...
ive used alot of awesome 5000's over the last 2 years i'm throwing ideas up as there seems to be an issue with Aumans 5000. I can put my .1g piece on the ground anywhere in red earth around the triangle to tune the detector if small gold is what I'm after. How dId you go with the 0.03 gram piece mate? any luck or bit hard in the city to test...
G
Guest
G0lddigg@ said:good mate you need to be confident in your machine
I can put my .1g piece on the ground anywhere in red earth around the triangle to tune the detector if small gold is what I'm after. How dId you go with the 0.03 gram piece mate? any luck or bit hard in the city to test...
I actaully went to test it last night in the cold and dark.
The machine was not stable enough for a very small
Nugget to test.
Spoke with Paul and he told me ground detecting is
What matters then he showed me a photo of a .03
Grammer he found.
Worse case you could always sell it and buy another
Though if this was the case i would want to test the
Machine before buying it.
With the gain setting the way i understand it is the
Smaller the coil and the higher the gain and visa
Versa.
I wonder how old Aumans 5000 is though. The
Warranty on mine experies i think next year
Then it has an extra 2 years ontop as part
Of the extended warranty.
G
Guest
Just found this.
GPX 5000 finding a.03 gram nugget.
[video=480,360]http://youtu.be/S0Q2WPKD_5M[/video]
GPX 5000 finding a.03 gram nugget.
[video=480,360]http://youtu.be/S0Q2WPKD_5M[/video]
AuMan said:
No two 0.03 bits are alike.
PhaseTech said:
so true.... i use a flat 0.03 piece for these tests, the .1 is round the .16 is less responsive than the .1
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Thanks for the vid golddig. Great to see it in action. Seems to make the signal more distinct and crisp.
G
Guest
G0lddigg@ said:PhaseTech said:
so true.... i use a flat 0.03 piece for these tests, the .1 is round the .16 is less responsive than the .1
https://www.prospectingaustralia.com/forum/img/member-images/357/1430959067_20150507_103639.jpg
Thanks for sharing.
Tom is a great guy. I met him once.
Would be awesome if you can take another
Photo with a pen tip for size comparisons.
I just flattened my as much as i could.
Just waiting for the thermochef to arrive today
So i might go for a drive tomm and test it.
no worries mate, dont know how much it helps... i use fat pens cos i have fat fingers lol maybe a head on a AAA battery is better comparison.... its basically a small lump with a wafer thin tail like a tadpole.
Thanks Nenad and Golddigg@, I think this explains it in this case. The one you have used is very flat and has a good surface area, whereas the ones I have are very round little balls. Might have to deface one and see if that makes an improvement. I guess my expectations might have been too high for the 5k and fine gold. When I get a chance I will test my machine against a friends 5000 and see if the results are consistent.
Anyway, to keep on topic, looks like the booster does a nice job, thanks Golddigg@ for taking the time to do the tests and for sharing the results.
AuMan
Anyway, to keep on topic, looks like the booster does a nice job, thanks Golddigg@ for taking the time to do the tests and for sharing the results.
AuMan
no worries mate
