Nexus and transmit power.

[ivconic]

This photo shows the "easy spot" where i had comfort to take a rest for a while:

[Nupi]

You are not paying attention. The story here is not only for the RX, but for both RX and TX together. The Vista may have the RX potentiometer, but it does not have the transmitter required to get the performance in the conditions I am talking about. I mean pure magnetite, not just black sand. The Vista can not work at all where Nexus MP can, nor any other IB detector.

The parallel resistive load of RX was invented by Bruce Candy, but no one have ever loaded any RX coil with values as low as 1 Ohm. Try that and tell me if the Vista have any sensitivity left to work with.

I'm paying attention very wel.

I'm not talking about a normal Smart, but a modified Smart.
And you do not know what I've modified. So you can not judge what he can or can not.

And I also talk about magnetite.
What I saw in your video the modified Vista Smart can do it.

It's not nice to hear but maybe even better.

[Nexus]

I'm paying attention very wel.

I'm not talking about a normal Smart, but a modified Smart.
And you do not know what I've modified. So you can not judge what he can or can not.

And I also talk about magnetite.
What I saw in your video the modified Vista Smart can do it.

It's not nice to hear but maybe even better.

I am an electronics design engineer manufacturing detectors for many years now and I can assure you I know all about Vista and what your resistive mods can possibly do.

You missed the part where I said that not everything is shown in that video. You also missed the part where I mention that the current production MP is by at least 40% deeper in pure magnetite than the second prototype.

The current MP is utilizing electronic circuit that is capable far beyond the simple resistive load you are using.

[Nexus]

This photo shows the "easy spot" where i had comfort to take a rest for a while:
[ATTACH]39291[/ATTACH]

Ok I get it. You are a wild goat or riding one on the back.

[ivconic]

Ok I get it. You are a wild goat or riding one on the back.

Both!


But i have no choice lately. Easy approachable sites are totally exhausted.

[Nexus]

Both!


But i have no choice lately. Easy approachable sites are totally exhausted.

Hell man. Goat riding a goat. That's really new to me
What is the soil like on those hills?

[Nupi]

I am an electronics design engineer manufacturing detectors for many years now and I can assure you I know all about Vista and what your resistive mods can possibly do.

You missed the part where I said that not everything is shown in that video. You also missed the part where I mention that the current production MP is by at least 40% deeper in pure magnetite than the second prototype.

The current MP is utilizing electronic circuit that is capable far beyond the simple resistive load you are using.

Like I said, you do not know all I have modified.
And of course I have not only added the potentiometer. Hahaha, it would have been very easy.

And also the best electronics design engineer manufacturing detectors for many years do not know what I have changed.

And I not missed the part where you said that not everything is shown in that video.That's why I said that the modified Smart is maybe even better. We should compare it in a test.

[WM6]

[ATTACH]39289[/ATTACH]

This was the second MP prototype and there were 6 in total before the production MP came out.

Thanks for your kind explanation.

I tested Nexus Standard MKII.
Really very deep machine on mild soil, but not immune to uneven mineralization.
On evenly mineralized testing substrate it can go deeper than any ML VLF/IB I tested (more than 0,5m deep, on 5kg coin "hoard"
with both tested coils: 36x30cm and 17x29cm).
But at uneven soil composition: at full sensitivity, it can even clear differentiate trampled meadow path from the surrounding land.

[Nexus]

Nupi.
On your circuit diagram from the Vista there is a TX coil with parallel capacitor. This means that the TX is a parallel resonant type. The best way to get this combination to work is by the TX circuit that I have published in this tread with a fully differential amplifier. You are still using a standard Voltage input and parallel resonant TX which are very limited for work in mineral conditions and there is nothing extra to add that will remedy this limitation.
This is why it was only a test prototype for MP, not the MP.
I have no incentive for comparing as you have nothing to compare that was not tested here already.

[Nexus]

Thanks for your kind explanation.

I tested Nexus Standard MKII.
Really very deep machine on mild soil, but not immune to uneven mineralization.
On evenly mineralized testing substrate it can go deeper than any ML VLF/IB I tested (more than 0,5m deep, on 5kg coin "hoard"
with both tested coils: 36x30cm and 17x29cm).
But at uneven soil composition: at full sensitivity, it can even clear differentiate trampled meadow path from the surrounding land.

On uneven soil or any other difficult conditions you are not suppose to push the sensitivity up, but to turn it down. If there is any unacceptable ground interference the logical thing to do is to reduce the sensitivity, not to increase it.

[Nupi]

Nexus.

I do not want to keep repeating.
But I expected your answer.

---- Never do a test with real rivals ---

[ivconic]

Hell man. Goat riding a goat. That's really new to me
What is the soil like on those hills?

I mentioned; tough. I can't explain it other than to use Deus parameters (too long only with that detector). GB goes from 84 to 87 most of the time.
Not only that, there are lot of spots where Deus produces smooth "colored" audio without VDI, doubling the sound like "deeeh daaah", indicating strong hotrock.
So it is very tough to work in such conditions. Despite all; Deus is still most successful among several other models that i have tried there.
It is sort of hill, it was the fortress once on its peak, made of stone and ceramics. Than it probably burned down (lot of melted metal particles around).
From the peak down to 100m bellow there are iron oxide, melted chunks and particles, pieces of ceramics and occasional good targets here and there.
Piles of stone and mixed material, covered with small bushes.
It was Byzantine and later Serbian medieval fortress. Still hiding lot of precious finds. But those finds are hard to reach, tough targets!
Large coil would probably do the job referring the depths, but it can not get close on such places, so, smaller coil is only way.
Yet; with smaller coil you can't get enough depth.
I am sure that Minelab GPX series will be able to find many targets more there, but i can't imagine how would be possible to carry and handle such detector there at all.
Puzzled situation! Tough!

[Nexus]

Nexus.

I do not want to keep repeating.
But I expected your answer.

---- Never do a test with real rivals ---

As I have said I have no incentive for comparing as you have nothing to compare that was not tested here already.

[Nexus]

I mentioned; tough. I can't explain it other than to use Deus parameters (too long only with that detector). GB goes from 84 to 87 most of the time.
Not only that, there are lot of spots where Deus produces smooth "colored" audio without VDI, doubling the sound like "deeeh daaah", indicating strong hotrock.
So it is very tough to work in such conditions. Despite all; Deus is still most successful among several other models that i have tried there.
It is sort of hill, it was the fortress once on its peak, made of stone and ceramics. Than it probably burned down (lot of melted metal particles around).
From the peak down to 100m bellow there are iron oxide, melted chunks and particles, pieces of ceramics and occasional good targets here and there.
Piles of stone and mixed material, covered with small bushes.
It was Byzantine and later Serbian medieval fortress. Still hiding lot of precious finds. But those finds are hard to reach, tough targets!
Large coil would probably do the job referring the depths, but it can not get close on such places, so, smaller coil is only way.
Yet; with smaller coil you can't get enough depth.
I am sure that Minelab GPX series will be able to find many targets more there, but i can't imagine how would be possible to carry and handle such detector there at all.
Puzzled situation! Tough!

I suppose cutting the bush and digging is the answer. What else really?

[ivconic]

I suppose cutting the bush and digging is the answer. What else really?

That's what i actually do by now. But it is tedious and slow job, the day on such site is very short.
But recent nice finds that i had there are pushing me to continue.
Such site is perfect for real testing the detectors and see the real truth about md technology and related facts.
Deus is doing nice job there, but for the record and to keep being fair; it has own limits.
It is reaching down to some depths and that's all. Bellow that level Deus can't do much.
Like i said; Minelab GP&GPX will probably do more than that.
Everything else from detectors that i know; are pretty much useless there.

P.S.
Watching your video and part with coin covered with rocks; i think that it was closest to what i have here on that site.
But piles of such rocks are much larger here. Mixed with iron oxide and melted iron&ceramic parts.
That's why your video attracted my attention. It would be interesting to test Nexus here.