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EL NINO77 last won the day on January 22 2019

EL NINO77 had the most liked content!


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    Whites Spectra Vision,V3&V3i, 2X MXT Pro,Tek.-G2,Rutus Alter71 v2.0, Argo v.3,Optima v.2,Vista Gold Gain,GM-CK,Minelab Equinox 800,ETRAC, Garrett ATX ,Ace 400i,AKA Signum MFD, Tesoro Mojave,2x XP ORX

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  1. ... 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 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 ...
  2. ATREX & MULTI FREQUENCY Atrex currently has a Water Reject function, which is the simplest use of more than one frequency for operation in a metal detector. The transmitting signal is not specially formed, we simply take advantage of the natural presence of harmonic frequencies in a rectangular signal. Research and experimentation on the real Multi Frequency work has been going on in RUTUS for a long time. The Atrex has, for good reason, a processor three times more powerful than the one we used in previous models, and similar but different solutions for the detector electronics itself. The main problem in talking about Multi Frequency is the advertising material you have seen for many years. The amount of irrelevant and sometimes misleading information is overwhelming. They are intended to convince you of this technology, not explain how it works. The first most important point is the number of frequencies. You can often see in various advertising materials how many frequencies are emitted by Multi Frequency detectors. The important thing is not how many frequencies the detector transmits but how many it RECEIVES - how many frequencies it simultaneously analyses in order to detect an object. Transmitting a frequency not received by the detector is just a waste of unnecessary energy. If you are standing in a dark courtyard and want to keep an eye on the gate and the garden gate at the same time, how many torches will you use? Two, only two are enough for this task. Any additional ones that shine into the sky are just an unnecessary waste of batteries. The transmitting signal has to be optimised to transmit ONLY those frequencies that the detector receives and this issue, in itself, is complicated. The second point is the drawings showing that for each object there is a single best frequency designed to detect it. Yes, it is true, but concerning SINGLE FREQUENCY detectors. Is this how Multi Frequency detectors work? Of course not. To describe the topic roughly: single frequency detectors use a resistive signal ("Y") to detect objects, whereas Multi Frequency detectors use magnetic ("X") signals from multiple frequencies. The X signals behave differently from the picture we are all familiar with. How many frequencies will the Atrex operate in Multi Frequency? As many as needed to achieve all the desired features. Another lingering myth to deal with is that Multi Frequency is "slow". The first Multi Frequency detectors were developed and designed on the basis of 8-bit microcontrollers, with a clock of 3.9 MHz. The efficiency of such a "monument of technology" is only 1.4% (!) of the Atrex processor. Multi Frequency designed today does not mean "slowness" and has a number of advantages: - there is no need to select frequencies for the searched objects, the detector detects small and large objects well, - no detector response (or the response reduced many times) to any conductive, non-metallic substances in the ground, e.g. sea water, coke, shales, etc., - no influence (or very little influence) of the magnetic and conductivity of the soil on the ID of the objects, - more effective detection in highly mineralised ground (both in terms of the presence of magnetite and its conductivity). Multi Frequency software for Atrex is currently in the final stages of testing in various parts of Europe, the feedback has been very positive. It will be available to download for free on our website in the near future.
  3. 👍 .....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...
  4. Steve....., why do you like the CTX version of Sunray Pro Gold ...more than other versions? What do you think is better? 👍
  5. 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..
  6. .......This is a really good topic for Calabash ..., to test the range but also its detector identification on a 3mm stud earring, or on a fragment of a thin gold chain .. ,, ... but the size of the coil in such tests already plays a very big role ...
  7. A nice comparison of Deus and Equinox on a small gold 1 dollar coin .., in a medium-strength mineralized Colorado soil ... there is a starting from Equinox and even Deus 2 gives good results ... Like Jef ... I encounter higher conditions of mineralization. Golden forest .... which will quickly fill the entire mineralization leaf ORX .. Many detectors can detect 4 targets at levels 6 " in the field.../ also..Deus and ORX -Gold1 program disc- IAR 4 max/." ... BUT ... 2 most demanding buried targets 1 gram of gold at 8 "...and 22mm-5 gram silver coin at 9" ..in the field ... domains still have the 2 best detectors for such conditions .. it's Whites MXT Pro and Garret ATX/PI/ ,, 3rd detector .. which proved to give some signal ... for these two deepest targets 1 gram of gold./8"depth/ and 5gram silver coin / 9 "depth / was Equinox on the program Gold1. A small test sample of soil ... from the Golden Forest ... measured by Teknetics G2 shows mineralization of 6-7 Bar FE3O4 / Magnetite /, what does it mean to measure ORX full of mineralization sheet ..
  8. ..... or the detector can give a response..it even to the empty hole itself .. .... But I believe we will see more tests from Calabash ... that I will take into account and verify such a possibility ...
  9. I have a similar opinion, Andrew ... even a covered hole in the sand can produce a good signal ..... in such a test it is right to test a covered hole ...without coin.. ... it was I think the 8:40 minute test ... Here's what worries me....
  10. 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 ...
  11. 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 ....,
  12. 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...
  13. Pretty old and rough Spanish silver ... ,, Congratulations ... "de my parte ".. Chase .... 👍
  14. The Field 2 program of Equinox .. may not be the best for targets under ceramics ,,, better done programs Type 1- Park 1, Field 1, Beach1 .. And just .... the programs Park1, Pole1 and Beach 1 are powerful programs for detection in terrains with a high content of ceramics .. Beach2 is also good but it is weaker in performance ..
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