EL NINO77

it's already .... it's PI Garrett ATX - but it uses VLF mode when in  Iron check mode ....

Simon ... now in the winter .. in practice it's sometimes very difficult to get close like this ... I don't know how many times I had to shovel .. wipe the mud from the pinpointer

14 hours ago, Geotech said:

What you are experiencing is Earth field effect (EFE). The Earth's magnetic field affects the RX response slightly and as you rotate the coil around the effect varies and can cause falsing. It is more prevalent with pinpointers because there is a ferrite rod in the coil and the Earth field affects the reaction of the ferrite. Theoretically it can happen with any pinpointer but is more prone with high sensitivity designs. I recall when I built the first TRX prototype I used the wrong ferrite and it was incredibly sensitive to EFE, it would go crazy as I waved it around.

Carl Moreland ..
here he perfectly wrote the very essence of the problem .. ,, and pinpointer Profind 35 will behave similarly on higher sensitivities ...
  - at a highly set sensitivity, this pinpointer can be more sensitive to the change in the orientation of the search probe in the electromagnetic field of the earth ....
..
  Profind 35 I know how to switch on  in the field..about in the same orientation in which I will continue to search for them ... then it will work the most stable..even when setting a relatively high level of sensitivity ...

it's one way to work at high sensitivity...

I think ... that this Abenson test ... has been performed really well ...

  ...I don't think so many detectors  have the ability to detect .... and not yet but also properly test detectors in mineralization ,,, ,, But who has such conditions or even tougher / 6-7 bar / .. will understand and come to similar conclusions ...

Compare DEUS II and Equinox 800 on 11 "coils.. and in Gold programs ... it's absolutely fine ../. And both detectors still had a volume adjustment reserve ..

 .. And finally ... for a more accurate comparison of the sensitivity and range of detection for the same targets the new Deus II ..was compared... even with other detectors -  the DEUS1 - 9.5 "HF elliptical coil ... and PI  GPX 5000 - 6" coil "...

I appreciate it as an excellent comparative test👍

Trying with Equinox ... to detect in targets in black ceramics or on coke ... on Programs Type2 / Park2, Pole2, Gold 1, Gold2 / is a basic mistake .... these programs are not designed for that ...

Equinox programs that work well with the elimination of Coke and black ceramics  /conductive terain/are Type 1 programs / Park1, Field1, and Beach1 and programs Beach 2 .... / but Beach2 is the weakest program in terms of ...

the differences between the Equinox Type 1 and Type 2 programs are significant......, more than a normal detector operator can think ...

2 hours ago, phrunt said:

I'm surprised on both detectors how a single inch can change the results so much in that soil, pretty crazy.  I'm certainly not used to dealing with soil like that 🙂

 

  Simon....That's what is interesting ... on these highly mineralizing tests ... ,, because not a very deep detection of targets quickly stops working reliably .... even one inch deeper and a good signal becomes a border signal .!!!

In tests in highly mineralized magnetite terrain / Equinox GB = 3 /, the imaginary limit of good detection of such large targets is somewhere at the 6 "level for high-performance VLF detectors ..... And ..beyond the 6 "depth level ... the detection power of many detectors is rapidly lost and the 7" detection depth itself can be the limit for reliable detection .. for a coin of conductivity and  size such as a silver Dime. ..

  Even deeper targets at depths of 8"  for 1gram Gold... or  and 9"- for 5gram silver coin ...in such mineralization will be the full limit of the detection capabilities of Vlf detectors ... because many detectors do not prove the signal  for such targets even in all metal mode ..  and it is not yet to identify such signals as good targets. ....!!!

Ps ....I would like to thank Andrew ... / Abenson / for his time and effort in performing this Test..in highly mineralized magnetite terrain ... and comparing Equinox 800  and Deus II... under the same conditions .. on multiple detection programs for both detectors ..

His tests are really realistic ... and at the same time very instructive...👍

Nice test Deus II ... Ric ../Ogliuga/.. on your highly mineralized test field ..👍..
...It can be seen from 50-Eurocent coin  at 25 cm ... it is a  good signal even in such a heavily mineralized terrain ..
I am waiting for your observations and experiences regarding the use and settings of the XP Deus II .. detector for such conditions ...

.I admit that your tests of different detectors on two test fields ... which one is highly mineralized and the other is low mineralized are still interesting to me ... and instructive ..because they really show quite accurately what real depths can be achieved in different types mineralization ..

.... your previous tests Spectra V3i, CTX 3030, Deus, Blisstol and Relic Striker can be taken as a certain standard for further comparison ... performance tests of new detectors ...

It will be interesting to see which Deus II program will work in such terms ... the best ...👍

EQUINOX's Ground Balance for highly concentrated magnetite / magnetic mineralization / will show you the value of Ground balance 2-3 .... what is right with the assumption .. that the factory setting of GB at Equinox is 0..portionably close to calibration to ferrite / gb similar to in magnetite / ...

the terrain of the  gold forest has a value of GB= 3...

  with GB Equinox for Hematite / iron mineralization / you can get very different values= 15 GB  ... because it is a iron mineralization ..

 the red terrains of the Pyrenees may have high values of GB 60_64...

  On the other hand ... very light sandy terrain can show a value ofGB 8  ... and higher... ... 20-30GB.. 

according to me, Equinox takes into account several factors when measuring GB, except for Phase Terrain ...

Andrew .... how would you rate the accuracy of VDI target identification Equinox vs Deus2 vs Deus 1? in such a mineralized soil? ..

I assume you have used Gold programs and Equinox in both Deus ....

  And yes, 74 khz at the HF Elliptical Coil ... on the full bar of mineralization at Deus 1 can already give a response to the terrain itself ... ,, the only possibility is that you would find with a sensitivity lower than 80 ...

Personally, I have not yet found any difference between Vision and my Spectra V3 - with the original electronics and the original 1 generation software ...... ,, at the same settings ...

one thing is for sure ... both of these Vision and Spectra V3 detectors have a much faster ground balance / a few seconds / compared to the newer Spetra V3i ... there is perhaps Gb / 15 seconds / ... there is a really significant difference ...

As I say .. I will be curious .... whether Vision will really be better in depth compared to the old Spectra V3 and also the new Spectra V3i compared to 2 powerful 12x10 "SEF coils .... and also 13" Ultimate .... .. right on 3 different mineralized test fields ...

Luki ... I think this question is asked by many Whites Spectra users ... according to information from a colleague who owned 4 Whites Spectra detectors ... also Vision .. Vision should be some 10% -15%.. deeper from V3i ...
  We will find out the whole truth only after a thorough testing of all three Whites Spectra models - Vision, V3 and V3i .. this spring when the snow melts .. on several test fields ...👍

You can still kick Whites Spectra in the depths using TX Bost ON.... and the mean value of RXGain 5-7..max. for /10"-13" coil/  and RXGain 6-9..max. /for small 7" or 6X10"coil/ according to the mineralization of the terrain ... and the size of the coil.

Sensitivity  setings to good depth is somewhere at DS 91-93... no less...

The basic mistake of many Spectra users is to run the detector on the very high setings RX Gain /10-15max/... and then turn TX BOST ON ...
This way it won't work well .... because a lot of deep signals will pass to you iron ... !!!

Gerry ,, you're right ...
 
For all detectors (including Equinox) that have pseudo-static mode work * / pseudo Allmetal / ...where All Metal channel is it is directly connected and controlled by Discrimination .. it is necessary for prospecting and searching .... to "fully open" up Discrimination ... to All -metal mode could work in the full zone of ferrous and non-ferrous VDI .

 Because in the case of closed discrimination  i at 0 .. if the target is not currently in the non-ferrous zone ... then you will not receive a signal from the channel Allmetal .. - often there can be small deep targets with ID in the ferous zone VDI ...so such a signal ... you can easily pass...

Gold VLF detectors use the All metall mode for searching. As the main search mode because it is the deepest mod ..in various mineralized terains...
and the Discrimination mode there is almost a "bonus "for faster recognition of a larger signal, whether it is an iron or a non-ferrous target ...
...
From my point of view .. / quite simple / Discrimination in a large number of gold detectors is mostly used to identify iron as a possible target ,, but not ... for example, very small gold nuggets in the depths .... where a large role is also played by mineralization, which can move such signals easily to a high or low / depending on the type of mineralization / iron zone ..

Of course, when gold is bigger and also at a shallower depth, the Discrimination Mod will work with sufficient precision.

In the first place .. there are coils where the coil is forced and the electronics of the coil .... are designed under the type of detector technology as well as the frequency that the detector uses, ..
and the difference between FBS/ Etrac technology, CTX 3.3 khz -28 khz / and Multi-IQ / Equinox technology, Vanquish 5khz-40khz / is really big ...

here it is said the coils for FBS technology have long been compatible ... among the various generations of FBS detectors such as Explorer/Quatro, and  Etrac / Safari.

FBS2 technology was developed only for the CTX 3030 detector ... and the coils will only work on the CTX 3030 detector ...

  Keep in mind that with newer and more advanced detector technicians, the development and construction of coils also goes ahead .. where a certain part of the RX preamplifier and other electronics is and will be placed in the coil ...

I think there is a certain optimal range of coil size 11 "-13" .... to the size of the target .... / for example a small coin / - where increasing the size of the coil really increases practically the range of the detector to targets of this size ..

maybe even a 15 "coil can provide some advantage in depth ..

on the contrary ... the 4-5 "coils that could not optimally increase its range on larger targets ... ,, it sets the range limit here..for any large coin target ...

On the other hand, too large a coil .. size 18 "scatters the TX /Vlf/ detector more into the space than necessary .....
and this can also cause losses on the receiving part of the detector coil - so the detector becomes less sensitive and has a smaller impact on smaller coin targets

...according to me tx must have .. for a certain coil size you have a certain minimum density of the electromagnetic field ,, so that it can well induce small ,, but deep targets...

....so the size of the 18 "coil no longer has to show increased range.-on normal TX.

..of course in the case of a VLF detector in addition to the size of the coil ... the frequency of the detector and the type of conductivity of the target also play a big role ... where some type of conductor will have the best range ..

on the other hand, when I want to find out how a given detector is naturally sensitive to a type of conductors .... I do comparison tests on coins of the same diameter ... but different conductivity ... to exclude the target size factor on the detector range ... and found out on what conductor the detector will have the highest range ...

Sodbuster...Thank you for this information ,,, it looks like these  headphones..are really very versatile ..👍

... the size of the coil is a very important factor, because it can sufficiently bend the basic detection properties of a certain frequency used ...

it's no secret ... the  small coil.... was able to significantly increase the sensitivity to very small-low-conductivity objects ... even at the low detector frequency used ...

But the coil size factor ... it also works in the opposite direction ... for example, with a detrector operating at 19-30 khz and more, a large 11 "or 13" coil can significantly improve detection, especially on higher conductors.

 the detector's sensitivity to very small things affects 3 essential things ...

1. Detector power - a powerful detector even at our used frequency is still sensitive enough to very small things ...

2. the size of the detector frequency used ... the higher the frequency, the higher the sensitivity to small things.

3 .. coil size ... optimally the coil was able to significantly improve the sensitivity and reach of the detector on very small things ..

Sufficiently powerful and sensitive detector working at 6.6khz on a standard 11 "coil was able to detect 3 times in a row on a 2m section of a lighty snowed forest road .. small  4.5 mm lead shot ..don't be surprised because the airest of 0.1gram of gold is somewhere at 11.5cm...

no it wasn't a coincidence, because in various detections I dug for 1 search for example 2 shots with a detector working at 6.6khz ,,,

but again I have to admit that with detectors operating on 19khz and 11 "coils/Tek G2/, the average was, for example, 3 shots for a similarly short search ..

the higher frequency definitely improves the chances of better detection of very small things ..but the detector must also be powerful enough...

.....however, it is clear that there is a certain target size limit where there will be a better high frequency detector, for example, working at 48 khz ...

All those detectors are still beautiful and timeless ... Karelian...👍

👍 .....Measuring the TX coil voltage / as in the video / will not give true and accurate results.

This is exactly how Carl Moreland explained ... for the multifrequency you have to concentrate on measuring the current from the Tx of the detector coil ... so that you know exactly what type of multifrequency it is. find out with the help of FFT ..👍

I know my knowledge of how to do the measurement correctly ... I got it on the Geotech1 forum ... and I thank Carl Moreland, and the forum members for their great help in this matter ...👍

Since Carl mentioned one more important thing and that is that multi is more like multi-frequency / 2F / multi DFX ... and not like IQ- multi frequency on Equinox / 3F / 4F / I also consider it correct..and it's pretty in tune with also with the DEUS II manual where the manufacturer mentions various characteristics of multifrequency / 2 frequencies / for individual Deus II programs ...

 ...It should be noted here that different Deus II programs use a different 2F multifrequency .. which are targeted at a certain type of detection.

... here I want to note ..for one thing ... and that. the use of multifrequency in the detector should theoretically bring better detection properties either in depth or detection sensitivity with better ID, as well as better separation and better work in more mineralized  terrain ..- for example compared to some excellent "single-frequency Top detectors.!

..However, all these theoretical assumptions of multifrequency are not so easily combined and at the same time effectively achieved ......and we will see if XP with the Deus II detector can deal with this challenge ...

..When I have the opportunity, I will try to measure Deus II with  oscilloscope and also write my observations. About the Multifrequency of Deus II.

I also believe that soon I will have the opportunity to test and compare Deus II against other Top detectors in field tests and detecting...

Steve....., why do you like the CTX version of Sunray Pro Gold  ...more than other versions?

What do you think is better? 👍

the very sensitivity of the detector that works in the beach mode / salt elimination mode / is, as Steve says, a very difficult task ..

Detector in the Beach program / wet salt sand ,, and sea water / because it loses sensitivity to very small objects ... On dry sand or in fresh water you can use some terrain program that will be significantly more sensitive to small gold ..

Equinox programs -and very  smal object sensitivity-Airtest..  

7 hours ago, schoolofhardNox said:

I knew someone who always used channel 6 or channel 9 for deep silver. Now, I know that there is something to those claims. So, do you have any thoughts on which frequency on the Etrac may find deep, tiny, high conductors best?? Wondering if I can get a little more depth on a US silver dime (around 18mm). Great work analyzing the two tone frequencies. I assuming the channel selection would have to change if we use multi-tones, as the guy I knew always ran multi- tones

Etrac will be the most sensitive to high conductors of the * Dime type on channel 2-3 ,, ,, the most sensitive to small things on channel 10 ,, and an excellent universal reach will be on the channels on various conductors will be on channel 8 ...

  However, an important feature of Etrac is the use of good settings and a larger reel .. I have 13 "Ultimate" colleague I have 11 "..and of our comparisons 13" is deeper ..

 Settings ...Ground to neutral .... in lighter terrain it is deeper ...

7 hours ago, rvpopeye said:

Interesting reading here.

Thx ElNino  for the FFT spectrum analysis .

Have you done that on an 800 ?

(Nice scope display !!)

Some time ago ... I did an oscilloscope at Equinox ... some analysis of his various programs ..

But I didn't do the frequency shift analysis ... on different channels ....,

ORX, program Gold1  31.3khz..., REACTIVITY 2.5-3... ...Disc IAR is on 5 ../ 9.5" HF..Elliptical coil /.

Disc IAR  to 4max / Hf 9"Round coil/...

Some direct comparison of Deus II from Orx is also interesting for me ...We will see...