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afreakofnature

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  1. 2 hours ago, Northeast said:

     

    Yes, that might change things a bit.  95% of my detecting with the Z is in Difficult.  Varies between High Yield and General (more General).  Semi auto GB and no filters.   

    But do plan on trying Normal more and bringing in the use of the audio filters as jasong has suggested.   

    Let discuss those options in a different thread.  Just so we can stay on topic with these controls.  Otherwise we will go in a completely different direction.  Actually alot of that has been discussed before but never the focus on these 4 specific controls.  Thanks Northeast!

  2. 1 minute ago, Gold Catcher said:

    I suggest to go into JP's posts and read what he has posted over the years on this topic. There is such a wealth of information in his posts and I highly recommend to read it. I don't think many questions will remain after reading through his posts :). 

    I have read them all, believe it or not.  It took a hell of a lot of time and I have read them more than once.  First when they were posted and then again doing all this research to make a complete GPZ manual.  As well as many others posts from this forum too.  It was a huge community effort to put all this out and then to take all that and for me to try to summarize it all up.  I will have most if not all of JP's posts in that PDF manual that I will eventually share.  This has been my winter time goal.  To become "completely" knowledgeable in ZVT and GPZ functions so when spring hits I can begin testing all of this and see what I might have missed because of my prior ignorance.

  3. 1 hour ago, jasong said:

    Sensitivity seems to be the thing that you and other new people I see posting in other threads not entirely undertstanding, but I think I can help you there.

    Sensitivity is the amount of gain the RX circuitry applies to the signals which the RX coil lobes detect from the ground. These are not audio signals, these are electromagnetic signals. Sensitivity is controlled by an EM frequency amplifier while audio is controlled by an audio frequency amplifier. Two completely seperate things. Think of a radio and an antenna, very similar thing happening. An FM radio has both an FM frequency amplifier and an audio (volume) amplifier. Does turning up your volume do anything at all to a weak FM radio signal? No, because the audio amplifier is not amplifying the actual radio signal, it only amplifies the demodulated audio signal. So increasing the volume without increasing the FM amplifier gain will only amplify static noise (EMI) and not the radio station you are trying to hear (the nugget). To pick up more distant or weak radio signals (nuggets) you either need a better antenna (different coil) or a stronger radio frequency amplifier (more gain/sensitivity).

    Sensitivity (aka Gain) determines how sensitive your machine is to weak signals. All the audio (volume) amplification in the world won't make a signal appear which the RX circuitry is not strong enough to amplify. More Sensitivity however will allow the detector (and thus the audio circuitry, and eventually your ear) to hear signals which it cannot hear at all at lower Sensitivities.

    But! RX gain/sensitivity also amplifies any signal the coil is picking up, including EMI. Which is why people like myself use the audio controls to adjust for and control the amount of noise you hear. I always, always, always run as much Sensitivity as possible for the conditions, then use the audio controls to compensate for noise. When you read the manual, this is exactly why those controls exist, and how the GPZ appears to be designed to be used.

    And this is why I have said since 2015 that it's better to run in as high of Sensitivity as you can, and then to tamp it all down and control the mess with the audio controls. Even in high EMI environments like we have often in the USA. Because running low gains means you are eliminating a ton of signals that will never be heard at all by the detector, and thus will never be heard by you no matter how much you fiddle with the volume controls. The speed and method you swing a coil can often be used to differentiate target signals from EMI too. The biggest mistake I see new detectorists make is running low gains then thinking they are compensating by boosting volume controls up and then thinking they are gaining something more by boosting audio even further with an audio booster. All the volume boosting in the world will not amplify a signal that isn't in the detector to begin with because you are running Sensitivity/Gain too low.

    That said, my experience (and I recently met another very experienced individual who independently has the same experience) is that past a certain level of Sensitivity, you will tend to boost more EMI than target response. In my experience, this level is at 18 Sensitivity. Going to 19 and 20 seems to exponentially increase the EMI while only linearly increasing target response. That's why in noisier parts of the US I find 18 Sensitivity to be the sweet spot, and you will see since 2015 this is what I've posted here. I can run 20 gain with some benefit in quieter parts of the country.

    Normal loves high sensitivities. When the ground thaws, do your own testing on test nuggets rather than taking my word for it. The difference between 18 Sensitivity and 10 Sensitivity is huge when it comes to a nugget you can just barely hear at 10 or just beyond 10's detection range, it will be a sweet target at 18 often. There is no ground, and no part of the USA which I have found any place necessary to run below 12 gain where you can't get better performance by instead running higher Sensitivity (wet salt ground being the only single exception I've encountered, but this varies) and using audio to process the RX boosted signal isntead. RX Sensitivity is the first thing you want to maximize because if it's too low then your detector will simply miss entirely a lot of deeper nuggets. 

    more on Sensitivity: See jasong's post above

    Hey jasong.  That is an excellent way of describing it and I believe we are spot on with each other just described a little different.  Yours is much more accurate in the technical jargon, mine probably not so much, but I am nearly sure your FM radio analogy is the exact same.  Gain controls the INPUT (antenna strength) and volume controls the OUTPUT (overall loudness).  

    jasong you have made some excellent videos in the past on US Miner (YouTube).  Care to make a quick one in regards to these 4 settings? 😉

     

  4. jasonG and Gold Catcher:  Lets stick to these "standard" settings that I first listed just so when talking about the 4 controls of the topic we don't get side tracked, because "Yes" when changing Gold Mode or Ground Type or Adding filters this will affect the 4 controls we are discussing and need to be adjusted accordingly.  Just don't want to get off topic is all and go down the wrong rabbit hole.  

    Noise Canceled.  Gold Mode: High Yield.  Ground Type: Normal.  Ground Balanced with Semi Auto.  No filters - Audio nor Ground Smoothing.

  5. Northeast, Thanks for the indepth response!  I know that had to take some time cause it took me about 6 hrs to write up my summary from what I had researched and learned.  Here are some of my comments to your replies.

    14 hours ago, Northeast said:

    I always guessed Sensitivity on the Z was a Transmit control. Pumping more power to the coil to light up targets but at the same time lighting up more ground signal and catching more EMI.   

    more on Sensitivity:

    I don't think that more "power" is going to the coil.  If that was the case you would have more battery drain.  More power, more energy right?  In other posts people were thinking this should be like volume.  But volume is an OUTPUT control and I think that Sensitivity is an INPUT control.  I think of it like a guitar plugged into an amp.  The amp has a gain and a volume too.  The gain controls what is being sent from the guitar to the amp (INPUT).  The volume controls what goes from the amp to the ear (OUTPUT).  Yes it does sound louder when you adjust the gain, but like a guitar if you just crank the gain all the way up it sounds distorted and noisy.  Bring it down some and you can get the max loudness with the perfect tone.  Same with volume on the amp.  Once you get that perfect tone with gain you can turn up the volume to get the max loudness before you introduce the noise level but that volume increase is subjective to your hearing.

    14 hours ago, Northeast said:

    And my view of Threshold must be the opposite to yours.  I think moving the Threshold higher is taking the numbers higher.  Lowering the Threshold and making it quieter is taking the numbers lower.  Maybe it is due to being in different hemispheres  😄     

    Yes it might be different hemispheres, because this comes straight from the manual made by Aussies 🤣.  I think we all think like you do but I wanted to stay consistent with how the manual describes it.  It is why I put the numbers with it too so we could all be on the same page.

    14 hours ago, Northeast said:

    I always thought was just that - Volume.  Just like turning your radio up.  Purely increasing the loudness to your liking.  

    I used a booster (B&Z) and ran Volume on the Z at 1.  I found it worked great.  The mate's Z that I use now simply has the WM12 and I really miss the control a booster provided.   

     I think we are on the same page here so that is good to see.  I use the WM 12 too.  I should maybe have said that above.  I don't see the need for a booster though when you can boost with the Volume control.  Maybe more analog control instead of incremental steps?  This should be the topic for another thread though.  Also I have not done any research on this yet so everything would be speculation.  Personally I just don't want to wear more gear. 🙂

  6. 4 hours ago, Gold Hound said:

    Everything I learnt came from trying all of the settings in the field and reading the manual.

    If you want to find more gold you need to have an understanding of what every setting dose. They are described in the manual then you need to apply them for yourself.

    There is no substitute for field application and controlled testing when you get a new detector.

    I do things a fair bit different to most others as they work for me in my testing.

     

    Yes this is well known and posted many times in the forum.  However, people can also learn from others.  This is what I am trying to promote.  Let's SEE what others doing and lets SEE if the certain theories that have been discussed hold true or not.  

    That's my push for some videos.  🤣 I love watching videos of people digging up gold, especially when I can't go out, but how about turning on the camera when you start too so we can watch you set up your detector for the ground you are in.  Let's watch the process.  🙂 

  7. 5 hours ago, Gold Hound said:

    The Volume limit just caps off the loudest part of the signal.

    This is so you can set the base volume/treshold/taget signal at a levels that are easy to hear but you can limit the loudness peak of a large/loud response so that you do not blow your ears off every time you detect a 10oz sunbaker😃

     

    5 hours ago, Northeast said:

    The same as Gold Hound described - just a ceiling for any given target.  i.e. - whatever the size or the proximity of the target it simply won't go above 30 decibels or 45 decibels or whatever it is you have it set at.    

    more on Volume Limit:  I used to think this too until I read a couple posts by others on here.  They say their experience with Volume Limit is actually more like what volume itself should be.  After researching what a volume limit is it should just set what the maximum volume can be (to protect your hearing), but if this was the case the Volume control would not change how much it goes up incrementally based on that limit.  Therfore, if you cranked up the Volume control everything would just be complete noise or distortion, because in theory the noise loudness would be the same loudness as a target as it could reach the same limit.  Therefore in conclusion, I think it is just a "maximum" loudness level overall setting and not a clipping function of the Volume control.  

    Hopefully someone might be able to test this and show in a video 😉.  If not I will be in May when the snow is gone, but the more the better!🙂

  8. 5 hours ago, Gold Hound said:

    A lil advice mate... read the manual... then read it again... and again... then go detecting and then read it again... then detect some more and read it again!

    The manual is your new bible!

     

    5 hours ago, Northeast said:

    I agree with that Dale but have also cut and paste most of JP's comments on DP re: the Z and some of Steve's also - there is another whole manual of info there that simply isn't covered in the original.  

    Although it is funny that a few things in the manual were pointed out to me by JP but just put in a different way.   Couldn't see the forest for the trees at times  🤦‍♂️

    Yes, I have read the manual.  Over and over. Plus I have also done what Northeast has done and basically inserted a lot of DP, Knowledge Base and TreasureTalk articles based on a couple months of research.  I have used the Z for about 3 years now too.  I plan on posting this "revised" manual in the future for everyone to have.  I am hoping it will be kind of like a wiki that others would want to add to so all the content is in one PDF.  But before I do that I want to have a good "grasp" on how to adjust these controls for ZVT perfection (based on the ground you are in).

    Hopefully some videos will roll in. Fingers crossed.

  9. Hey All.  I have been researching this last month or so throughout Detector Prospector, Minelab's Knowledge Base and TreasureTalks so that I can take my skills with the GPZ to the next level and I think in order to do that it involves these 4 settings:  Threshold, Sensitivity, Volume and Volume Limit.  A lot of forum members talk about these comparing and contrasting, but none really give you a "How to."  How do you go about adjusting these to reach perfection, to reach that perfect ZVT zen.

    Conclusions that I have read are that: it just depends on what you want to hear, or how you hear what is coming out of the detector.  OK, but I think it is more to it than that, and if you don't understand what these controls do how can you really achieve the best results.  

    Keeping these setting the same.  Noise Canceled.  Gold Mode: High Yield.  Ground Type: Normal.  Ground Balanced with Semi Auto.  No filters - Audio nor Ground Smoothing.  Lets talk about how we start.

    Here is what I have researched and summed up describing these controls.  These are my "interpretations" based on everything I have read and I think I really have a grasp on it now.  This information and dissemination of it came from everyone here, and I mean everyone!  Huge Thank You!

    Sensitivity:  aka Gain.  Control of the INPUT "strength" of a "sound wave."  You don't actually control how "sensitive" the coil is.  ZVT is ZVT, that is the tech we are using  In order to understand these controls I think of it like a "sound wave".  What you control is the "sound wave" coming into the machine.  Too much gain and you over modulate the sound wave, cause distortion, and increase the "noise" level.  Too little gain and your "sound wave" is decreased (like making it a flatter line) maybe allowing large "sounds" to come through but in return lowering the "noise" level and small "sounds."  In Sensitivity is where you want to produce the "perfect sound wave" coming into the machine.  You want that sound wave to just barely reach below a distortion level to get the best "sound or tone"  

    Threshold:  This is how much of the "noise" level you want to hear.  It kind of acts like a bottom or "noise" filter.  Increase threshold (lower number on GPZ) and you filter out more of the "noise" level as well as small "sounds."  The opposite is to lower threshold (increase number on the GPZ) to filter out less of the "noise" level and hear smaller "sounds."

     

    These two setting should play off of each other so that you can achieve the "biggest window" for the ZVT "sound wave" to operate in with the least amount of "noise".  Some people use a 20 sensitivity and a 7 threshold.  Is that the biggest window they could achieve?  Some do a 15 sensitivity and a 27 threshold.  Is that the biggest window they could achieve?  How come you could not do a 1 sensitivity and a 53 threshold?  Nobody has ever commented on that.  Boost it?  Probably not a good idea.  I don't know, never tried.  Food for thought, but I hope you get what I am saying about that.

    In my eyes these two controls are where you should start.  Achieve the biggest "window" that ZVT can work with.  If you minimize the window you are not taking advantage of the full technology.  In turn you are probably not finding the smallest pieces you could achieve or  the greatest depth on targets.  Don't limit ZVT, maximize it to its full potential.  Open the window as far as you can for the ground/mineralization you are in.

     

    Now on to Volume and Volume Limit

    This is where I do not have the best grasp on these controls, even after all the research I am not sure if I am describing these correct.  So many people play off of these and have different explanations.  This is what I "think" they mean.

    Volume: aka Audio Boost.  Control of the OUTPUT "loudness" of the Threshold and Sensitivity window that you just created.  We are told that this acts like an audio boost and that increasing this by one is like increasing Sensitivity by 2, etc.  I don't think that is a good way to describe it, at least for me.  What I think Volume is doing is increasing the loudness of the "window."  Than includes the "sound wave" as well as the "noise" associated with it.  If you can not hear the targets you want after adjusting your "window" above, then you need to boost the audio.  Doing this though will increase what you hear in "noise" and  I "think" this is why some describe this as equivalent to increasing Sensitivity but it is not.  The "window" has already been set with your Threshold and Sensitivity, what volume does is change the OUTPUT "loudness" and there by multiplies how big the window is ("sound wave" and "noise").  This allows you to hear hear more, but more of EVERYTHING, in affect increasing overall loudness.  This is why it should be used "conservatively."  Start at 1 and work up until it is where you "like" hearing it.  This is the part that should be subjective to each individual and their hearing.

    Volume Limit:  The Big Mystery.  What does this do?  How does it help me?  Some say that this is actually volume.  Some say this is what you should adjust to hear targets better.  Some say it is just there to not blow your ear drums off if your volume is set to high.  My questions are:  Does this affect the "OUPUT" signal or the "INPUT" signal or both?  Why would I want a Volume Limit?  My thoughts on this......  I think that Volume Limit sets the MAXIMUM Volume (Audio Boost) "level" that can be used.  I don't THINK it limits the Sensitivity.  So this is an OUTPUT control.  Therefore if you set the Volume Limit high you would get a higher (louder) incremental step with each number in Volume (Audio Boost).  If you use a lower Volume Limit, you would have lower (less louder) incremental steps in Volume (Audio Boost).  So if you want more precise control of your Volume (Audio Boost) you would set a lower Volume Limit.  The trade off is maximum loudness.  If you need to hear things louder you are going to have to raise your Volume Limit and then adjust your Volume (Audio Boost) accordingly.  My thoughts are that people think this actually raises the volume but in the end if you keep Volume (Audio Boost) at 8 and increase Volume Limit, it will get louder per se because you just raised the the maximum loudness level there by increasing the loudness steps for each Volume (Audio Boost) number.  Make sense?  It does to me, I hope I am right otherwise I am gonna have to relearn this all over again 😉

     

    Well now I need feedback from you all.  Am I out in left field on all of this?  Am I spot on?  Or do I just need some minor tweaks? 🤣 

    AND if you have the desire to help some, could as many folks as possible make a video of them adjusting these settings to achieve a perfect balance?  These are the videos that are missing on YouTube, etc.  We see tons of people digging up gold but not many at all on "How" they use and set up their machine.  This would be huge to see.  You don't have to make a fancy video, maybe just have someone with their phone over your shoulder while you go through it.  This would be a huge boon for a lot of people, including myself.  Especially us that have to stay in all winter and have to wait to test their own theories. 🤣  So any help in that regard please post!  OR if you already found some vids, please share.  I have tried every search I could to no avail.

    Anyways many members on here have said it before.  You need to learn your machine.  Its only one aspect of being an expert detectorist.  I know I am not there yet cause it sure looks like I am still trying to learn my machine.  The rest for me seemed to have come easier, researching locations, reading locations, putting the coil over the gold, etc.  Now I NEED to revisit a bunch of locations where I got the easy gold by just using preprogramed settings that I learned when I just started.  I started detecting at the SDC level.  Turn on and go.  I never had a GPX so comparing to the old never helped me.  I am part of the new school of detectorists and I don't want to be ignorant by having less control.  I want to take control.  Its time to achieve ZVT zen and see what was left behind.  Its time to level up.

  10. You don’t have to make them on my accord.  I’m just saying that I like them better.

    I don’t take my iPad with me when I am actually detecting.  If i need a certain map or reference I put it on my phone.  Back at camp I use my iPad.  I do field map every day 6 months out of the year with my iPad mini.  Been using that for over 7 years now and never broke a screen, keep in a side pouch and only use a Zagg screen protector.  

  11. Books in PDF format though would be so handy. It allows you to quickly search as well as keep everything in the right order like the authors are saying. Plus I can store thousands of references on my iPad so when I go in the field, or on a trip, I can quickly look stuff up if I need to. I hope they try to figure that out because it really is the way to go if they can get security somehow. Having a paper book, although it’s nice to have in the house and on the shelf, is not something that is really feasible for quick research anymore.  It’s really nice that most of the scientific publications are in PDF format now.

    BTW Fists of Gold is a fantastic book!

  12. 1 hour ago, mungass said:

    Really ?   you want a booster already before using the machine ? do you have secret info on the beast Lunk ?

     

    It more than likely is not a “booster“ that most people are thinking of. It’s just an external speaker that probably has volume control with it, there are quite a few to chose from.  Being that the GPX only has an external speaker attached to the machine or headphones you can use a Bluetooth speaker to attach it to your backpack, GPZ style.

  13. 22 minutes ago, jasong said:

    Honestly not trying to stir the pot and this is just my opinion based on the environment which I chose to detect. But the only two detectors that I really thought were worth the money since I started looking at PI's in 2007 were the 4500 and 7000. To me. YMMV.

    The 5000 let me down because the improvements in noise were so marginal in the already noisy places I worked (in my opinion) that I didn't see it worth the money, nor did I find Fine Gold to be useful anywhere I worked. It was a ton of money for very little feature that I could use. That release is singlehandedly responsible for making me hyper-aware of what ML is selling in new releases and wether it will or won't fit my needs.

    The SDC was irrelevant to me because it didn't fit the model of prospecting I use nor the type of gold I chase, and lacked coils to improve on any of those failings. Especially since I was only just starting to explore NNV at the time it was released and the 4500 was a better machine to prospect with in wide opens. 

    The GM1000 was ho-hum to me. I bought one used recently to replace my GB2 but only because my GB2 was very old and might be ready to fail and I wanted to actually test a GM in hand. I find the GM to be a good detector now that I've used it, and I'm glad I replaced my aging GB2, but not worth the money if I wasn't out to replace my GB2 already IMO. I do find the GM is a bit of an upgrade when it comes to speed of operation though.

    So 3 out 5 releases since I started looking seriously at Minelab have either let me down or been something that wasn't particularly suited to my detecting, or not significantly better than what I already had. If anyone can't see why a person might be deeply researching a machine to determine wether it suits their actual, real detecting purposes or not then I'm gonna go ahead and guess you got a lot more money to burn than I do. :laugh:

    👍🏻👍🏻  Again thank you.

  14. 35 minutes ago, jasong said:

    It's basically what the patent which I guessed GeoSense was months before the leaks started. That same patent also explained the no threshold mode too.

    In the patents, GeoSense seems to just be more of an algorithmic approach to using modern digital signal processing tech and digital controls of what would normally be manual dials to reduce ground and EMI noise by sensing the environment and then autoadjusting gain, threshold, ground balance, and potentially now maybe ground timings (the new patent seems to discuss autoadjustment of timings themselves whereas I can't recall if the old one does) to optimize performance.

    Seems like something that can be applied to any new detector. So might we see GeoSense PI, GeoSense ZVT, GeoSense VLF, GeoSense Hybrid on future detectors? Seems likely.

    Leaves me with a question though. If I buy a 6000 and keep my 7000 for deeper stuff since apparantly the 6000 won't keep up there for reasons I don't understand... then what happens when a GPZ 7500 w/GeoSense comes out a year later and I and others need to sell to upgrade?

    Just between 10 people who have a 6000 and a 7000, that's like $100k in used detectors to put onto the used market. A used market that seems to have shrunk since 5 years ago near as I can tell. Now what if 20 serious users are offloading gear to upgrade...or 50? I don't think the used market can bear that much.

    It really makes me wish Minelab would be more vocal and transparent because to me it's obvious there is a new flagship in the works from reading their patents. And if it were coming out shortly after the 6000 then I'd just wait for it and save my money and get the very best.

    Boom Jason!  You hit the nail on head.  I was trying to get at this in my other posts on another thread but you have said it WAY better backed up with science and research that I still need to learn and understand.  👍🏻👍🏻  Thanks for sharing all this!

  15. 1 hour ago, mn90403 said:

    Exactly.  Are we dealing with Windows 9.5 or 11? (Being we are on 10).  Or is this Vista that was worse than XP.  I am with Jason.  Is it really going to be better than what we already have on a dollar cost value.  That’s the million dollar question.  Unless one just buys things just to buy things, questions need to be asked and performance needs to be evaluated.

  16. 5 minutes ago, Gold Catcher said:

    Well said. Something tells me the SDC won't go away anytime soon. It was a huge sales hit and there are hords of SDC freaks out there who swear on it, for its applicability in those special circumstances that was mentioned. I think rather than dying out it will at some point be reborn, hopefully sporting the features that you mentioned 😁

    The SDC3100 😂

  17. 1 hour ago, Jonathan Porter said:

    I see this a lot with detector releases, a new machine is touted at being able to do a specific thing and all the comments by others are focused around how their current detector can do “such and such so why go with the new?”. Pie charts and depth % figures just do not cut it in the real world and are so dependant on the user and many other variables.

    This is why I hate seeing depth comparisons because all detectors are bound by the same laws. As an example I have dug many gold targets down to a depth of 3 feet, this is from the SD 2000 on through to the current day with the GPZ 7000, yet would any of you want to go back to a SD2000 to chase gold? I for one know I wouldn’t want to go down back down that path. 🥴🙏

    With new tech it’s often not about the ability to find a certain sized target that sells it, it’s about the consistency and ease of use in finding those targets in well worked areas. Minelab have a very strong track record of regularly producing detectors that continue to pull gold from the ground that all of us have done too death over and over again. Pulling ‘point ones’ might seem boring to some but at AU$7.50 a piece they all add up, I for sure will pick up a $10 bill if I see it blowing down the street.💲😁

    Pulling point ones over and over again can easily be done with the SDC, but the time you’ve invested in doing it is curtailed by the depth limitations of the tech, imagine better sensitivity whilst every swing of the coil could also bring you a bit better depth than the GPX5000? Suddenly your chances improve out of sight, the deep less frequent gold is in with a chance while you sniff out the little ones with ease.😎

    Below is a pic of a large specimen I found just prior to Xmas, it was in a well worked thrashed area that I’ve been frequenting since the VLF days. It was only at a depth of 33 inches, I’ve dug targets in this area at those depths with a variety of detectors since 1995, yet the 7000 still produce this one in between old dig holes, some of which were very recent!!

    So if I say that I’ve found smaller gold weight specimens at similar depths with previous MPS machines does that discount the GPZ 7000’s abilities to punch deep too? At the end of the day there is a range of gold available to a certain depth that constrains us all, Minelab have been very good at producing more and more refined detectors that are good at sniffing out targets still within that range, the only limitation IMHO is our ability to imagine the potential, because none of us actually KNOW what’s still in the ground, thats the main driver for us to continue trying our luck isn’t it?

    SG test shows approx 12 ounces 

    FD4329E9-07E9-4FE2-BCFC-E2BDAC1EEB56.thumb.jpeg.f8e5c832e3a6958144657a06bdf87fcd.jpegB7D1EB9E-5683-47CE-8AD8-12AEAEEB5FBD.thumb.jpeg.3fe60aa9f02309082569ba3db692c68d.jpeg

    CD5EF8AD-7A6F-49DC-96CA-E1C7C2FBB9CF.thumb.jpeg.620f22ae465ac919ba6fd56cad926c09.jpeg70676A22-F07F-4E64-9049-FBF9AA275C74.thumb.jpeg.63d69a413d387ac873d4fa091e104980.jpeg

    1F146A85-BAEB-4E11-ADBE-70E44557F2B6.thumb.jpeg.892f42f442d50c58dc934bf469917c86.jpeg

     

    I think in the end we all want the new tech.  We just don’t want to pay outrageous prices.  The GPZ was a massive upgrade and it doubled the price of what a gold detector would cost.  People saw the value.  Now we have something “inbetween” and are wondering if we should shell out another 6k.  Thats half the price of my car that I use every day!  If this was another above and beyond detector I don’t think we would be having as much discussion.  If Minelab would’ve advertised this as a 7500 people would not be questioning it as much and praising the upgrades.  But now people want to know, is it going to outperform the 7000 (and should we sell) or is it truly an inbetween detector?

  18. 10 hours ago, araratgold said:

    You heard it here first : The SDC is to be discontinued !

    No way! Not until Minelab actually makes an 8 inch coil will you ever see the SDC go away. And we have seen from history that they will not make an 8” coil for any of their new machines.  If you want a PI with an 8 “ coil your only choice is the SDC.  If you want an 11 inch coil your only choice is the GPX 6000. If you want a 19 inch coil your only choice is the GPZ. I’m actually surprised that the GPX 6000 crosses over a little bit into the GPZ coil size territory.  Oops on Minelab 😊

  19. I wonder if there is a way to mathematically figure out the star chart based on consistent coil size. For instance we know the SDC is only an 8 inch coil and we know that the GPZ is a 14 inch coil. So if you bump up the SDC to a 14 inch coil how many stars do you think it would get on a 1 g nugget? You get what I’m saying? Anybody got a way to figure this math out?  It can’t just be standard, its probably logarithmic in some nature.

    I say this because how much “better” are detectors really getting at detecting gold? (General Statement). I say this because my last day out before the snow hit I literally dug the end of a shotgun shell, paper caseing old one, 16 inches down with an SDC. I thought for sure I had a big nugget LOL

    edit:  after I looked back at the chart I got realizing. It never gives us what those nugget sizes are at what depth. They could be a standard depth of 5 inches or 15 inches or maybe just 1 inch.  🤣🤣🤣

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