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Here is a video of the Signal Response of the GPZ 19 Coil. I have also tested the 14 on this patch but didn't get round to videoing that test session but when l get time l will do a follow-up vid. But l can honestly say the 19 smashed the 14 for signal response I'm afraid l probably had the audio about 2 units too high as l wasn't sure how well the gopro would pick the sound up. Settings used were JP recomended settings with a few minor adjustments to suit the conditions. Cheers

Nenad had a new Gpz coil cover. Just saw it online. http://phasetechnical.com.au/product/gpz-7000-z19-solid-skidplate/

Just recently we were detecting (all experienced detectorist) in the grasslands of California, with two GPZ's, one had the stock 14" coil and the other had the 19" coil and two GPX's one had the 17x13 Evo and the other had the Minelab 12x15. Towards the end of the day, we decided to perform a test. We buried about a 9mm slug 14" deep. I went over the target with my GPZ, HY, Normal, Sen 15, Smoothing Off, and barely heard the target. Same settings with the 19" but much better results. Heard the target about three inches above the ground. Next, the GPX with the Evo coil in Sharp, General, don't remember the gain but a smooth threshold with the gold screamer, and no signal. The next detector is the one that is really giving me heart burn, the GPX with the 12x15 commander in Sensitive Extra, General, don't remember the gain but a smooth threshold with the stock battery. It gave an obvious signal about 5 inches above the ground. I could not believe how loud of a target response this stock GPX gave. After hearing the results from the GPX, I increased my Sensitiviy to 20, but there was too much ground noise to hear a target. I also tried different ground and gold modes with the GPZ, but nothing compared to that GPX. I wish we had more time to really investigate, but we were all tired, and the sun had already set behind the mountain. Is this just one of those scenarios that we must except and move on, or is there some credibility here??? Has anyone done similar tests or can give some suggestions? Still scratching my head, Brian.

Not wanting to hijack the current "where is it in the Us thread", Phoinex, So far I`ve managed to rip the front transmit coils rubber bumper off on grass and have cracked the original skid plate also catching grass, plastic tape is not the answer. I`m very interested in your skid plate mod. Must do something before I rip original skid plate right off and go bare, which may not be so bad. But from our OZ 4Ms I`m feeling like the lone ranger re having success with the 19, although I suspect there are others, must be. It is not much less sensitive then the 14 and like you say with the assist arm is fairly easy to use, also the hipstick does a top job handling its weight,( with the bungy going through a ring fixed just under the LCD...thanks Fred) so much so it is my coil of preference on the flats at present. I am very positive it is not a dud, just ZVT is new tech and we "need" to learn how to use it. Be good to see the reports on it on this 4M once it gets about the US.

Short video on my Tennessee 19" coil cover https://goo.gl/photos/ZqXGgcG1yoGpT83B6

Yes its mild ground, little to no trash and no I'm not tellin where it is. Small 1/2 gram nugget Settings were auto GB HY, normal, smoothing off, threshold 17, threshold tone 46 rest is default.

Now that the feline is out of the sack I'll give you all 2 cents worth of review and opinion of the 19"GPZ coil. Evidence indicates that when VA Paul left Australia last year he snuck out all of the Australian nuclear secrets, their plans to hack the 2020 American elections, the formula for Fosters beer and a 19'' GPZ coil. He made me use the coil first to see if Minelab assassins where following us to recover their coil. In the short time I used the coil, this is what I learned. All indications are that it will detect deeper. Your pick must be further away and it is more prone to pick up incidental metal such as zipper tabs. 30% deeper is only 10% less silly than claiming 40% even if Ml. does add an *. It does run smoother. You can use somewhat "hotter" settings than the 14" but it will still give a good sounding signal on bits of hot ground. There may be a bit more sensitivity to EMI. You need to slow your swing down significantly and keep it parallel to the ground. This also makes it easier to stop your swing and reverse direction. It will false when bumped on something solid but not enough to be a concern. Pin pointing is a pain in the a-- (arm). I have become immune ti this pain from my having spent a year with the 7000. Did you notice the little tray on VA Pauls coil. DON'T LAUGH! It actually works for tiny finds. In Pauls' posted photos, only one of the nuggets might not have been found with the 14" coil. However the area has been covered many times with a stock GPZ. but I have not spent enough time with the new coil to make a definitive statement like "more gold" or "deeper Gold" But I believe those statements will come. It is just plain HEAVY. Unless you are built funny, have no common sense or your just plain not to bright (yup, that's me) get your self some kind of suspension system. no gold is worth screwing up an arm or a shoulder. In conclusion I will say that the 19" coil is not magic. if you are not finding gold with a stock 7000 the bigger coil probably won"t help. They are, to me, unreasonably expensive and the history of Minelab dropping the price of the 7000 so soon after it's introduction still doesn't set well with a lot of early buyers so I probably won't tie up winter time beer money on a coil I can' use until next spring.

Field trips. If anyone in AZ wants to know how the 19" works before you buy one then let me know. I am going to be all over the state until the end of the month. If you have a good place to try this new coil out, I may be able to help you. PM me and we can work out the details. % This way you will know if you like it well enough to buy it. It's all about time now for me. I go back to work in about 4 weeks they say, so now is a good time for me. I have a few people already lined up, but I am interested in using it in different areas to get a better all around understanding and feel for it. I am going to be learning, the same as you would be. (Remember, JP says to have realistic expectations. If there has never been any big gold found in the area, chances are there isn't any.)

Just received the beast in the mail today and it's heavy! I'll probably be looking like Popeye after a while swinging that beast. Thought it would be a little lighter than it is.

This question has been touched upon in some other topics, but I still am not clear. The manual says that: a high volume limit will "allow a greater difference between a small and a large target". a low volume limit will "reduce the volume difference between a small and large target" If I want my small gold or large gold signals to stand out, I would think a medium to higher number would give the best volume response to really make a target stand out from ground noise. Just curious on the thoughts and experience of others with this setting.

Ok, I am having a ball with the 19", getting to really like it. I suspect it is a more advanced coil then the 14", or perhaps it is just its size but it is as quiet as (keep settings JP conservative) and powerful. You have probably had those signals "disappear" with the 14" and you`ve had to widen out your hole to get coil in (signals still too deep to pick up on side). Well get ready for the 19" because you are going to get more, especially with the deep smaller bits around 1 gram. These occurrences or digs really push home the message air tests are totally meaningless when in the real world. Now to talk ML into making us say a 11x12 or such that if possible is as quiet as the 19"....................... maybe 60% lighter I never said that............

Rob on Nuggethunting forum says he's get the new 19 inch coil and shipping out now. For you that has been waiting for it the waiting is over. Chuck

Where o where is the GPZ 19 coil for USA, I heard its on its way, I would just like to say to Minelab PLEASE expedite the delivery to your dealers. Show us you are working hard to get us product. We are loyal to the Minelab brand and experts in the use of your product line, at least give us a status. Regards Scott www.bucketdigger.com

I personally find the Zed's LED backlight to be somewhat lacking and was wondering if any of the electronics guru's or even minelab had considered an upgrade? I wouldn't mind shorter battery life and having to change to battery number two at lunchtime if I could see the screen better. What are others thoughts on this and has anyone heard of anything? Steve

Hi Steve and good members I took the 19 in coil out for its maiden swing yesterday, it was supposed to be a 10 day camping trip but my start battery on my car dropped a cell and I had to come back to town to get a replacement. So lucky for you guy's you get to see this 66g specimen with about 50g Au content that I pulled out of a deep rock crack at a measured 890mm. The 14 could not pick it up until about 250mm was removed and the 5k 14 elite could not pick it up until a further 120mm was removed. My pick handle is 1150mm long to give you a reference point and im holding my hand where the top of the ground was before I excavated the hole.

A new Treasure Talk blog by Jonathan Porter. "Following on from my last blog about the GPZ 19 coil, here are some further tips to help you get the best from your GPZ 7000, irrespective of which coil you are using. The GPZ 7000 is not difficult once you come to terms with the way the technology performs over the ground. It is a blend of behaviours which are dictated by ZVT technology, the Super-D coil design and the detector’s ability to tap into the full gamut of target information, thanks to being able to run a very low noise floor without any major trade-offs to audio stability." Read the rest at http://www.minelab.com/usa/go-minelabbing/treasure-talk/better-understanding-zero-voltage-transmission-zvt

As I occassionaly do on my off days I check around YouTube for new stuff on the Zed. Today was a nice suprise. I want to thank Aussie Bloke and Gold chaser for these new vid's. Aussie Bloke has put out one on my favorite noise The Zed Warble :) Something to pay attention to : And Gold Chaser has a series of video's on the gpz 19". Gotta love calcrete . Hopefully all the video's will play in succession otherwise look it up at youtube. :

I have been poking along with my ATX for awhile on a couple of little patches , the gold has been at depth . After much loving to the wife on reading how good the Zed was suppose to be, I finally got my way last month. I went to one patch nothing but pellets, second day second patch , well on my way to second patch , I was about to step over a fallen log and a target though faint it stopped me in my tracks . Repeatable so dig , down about 18" out popes a nice 18 grammar. so then I looked back and thought I was stopped for a resin , started to secrecy back where I had come from about 4mtrs another target 10g . Did a happy dance in the scub as I was alone and I could . 4hrs later was on me way to the pub for lunch with 5.5onces in my pocket! Took pics as they were. Then once cleaned the wife was looking at them and made an Australian 5oncer! I all I got is Zed fever! Reguards Squizz

Minelab just updated the October 26 blog entry at http://www.minelab.com/usa/go-minelabbing/treasure-talk/the-gpz-19-coil-does-it-really-detect-30-deeper to add the following information at the end of the entry. Note that to get good coverage it is the smaller receive windings that matter, not the larger center transmit winding.

Initial run with the 19" coil over two days: 1. The weight is massive. Within the first hour we were already redesigning our harnesses. It is a brute of a thing and needs far better weight distribution through the harness. Tried both the minelab bra and hipstick. The bra worked better for me as the hipstick just pushed straight down into my thigh. The machine is not balanced like it is with the 14" coil. If you plan on using it all day as your standard coil, harness engineering will be a growth industry ...... 2. Coverage is king. Huge leap forward in ground covered at same pace as 14" coil. Big tick. 3. Minelab have to do something about the salt interference especially over here in WA. It is crippling...... Hot rocks are handled better which was expected. 4. Be prepared to dig. Sounds obvious ........ but take everything you've got (mattock, axe, crowbar, long handle shovel, genset (unnamed things used when using a genset...). I had what I thought was a signal right next to a pretty big tree (diff/general). I know that the creek line had big gold come off it (13oz, 7oz, 4oz and a few 2oz plusses so it was in the right area). No sounds around it so I was reasonably confident. Got stuck in and before long it was an archaeological dig site with shit strewn everywhere. Got through 2" roots and down about 1.5 foot. The hole was wide enough to get a small swing of the 19" coil - so it was sizable. Not much change in signal with the 19", maybe slightly louder. Got sdc 2300 as pinpointer - nothing. Chucked the 14" coil on and thought it was like swinging the 2300 it was so light in comparison - no signal at all in diff/general 1.5 foot down. Started crying and it is now known as the mystery hole ...... walked away but it will bug me until I get an excavator. I predict I will not be alone. 5. JP is right - in diff/general you get false signals when it gets knocked around. Far less in other modes. 6. For those who enjoy staples and small pieces of wire, fear not. Your 19" coil will not let you down. Sadly I didn't get any gold with the elephant gun 19" coil. Got 11g with the pea shooter so paid for the trip.... Cheers BB

Hello forum lurkers, its been a while since I posted here but I make no apology because its been a while since I had time to do much of anything outside of the day to day running of a retail business. The reason I'm posting today is because I was forced to defend myself on an Aussie forum after posting up material on our The Outback Prospector FB page OBP FB page so now feel this forum deserves some of the information because I would prefer to spend my online time here than anywhere else. The GPZ19 coil is the subject of scrutiny at the moment and for good reason, namely that it offers the full depth potential of a very powerful metal detector. I know this is not an ideal scenario for a lot of detectorists who work in very hilly scrubby terrain but for a lot of people its announcement and pending release is definitely raising the pulse levels. I've been exposed to large coils on the GPZ tech for a long time now, with the first coils I used being hand built heavy monsters. I was also very fortunate to have been involved in a major alluvial gold discovery around the same time so benefited from regular deep gold discoveries with these coils on a regular basis, this then fast tracked my understanding of SuperD and ZVT when exposed to deep targets outside the range of other tech. At this stage I've been asked to write up some material on my experiences with the large coils so will hold off on going into too much detail here but keep an eye out once these go mainstream, also please bear in mind I now own a retail business that relies on my personal information being exclusive to its success so need to focus on whats good for my business. The main advice I can give for successful large coil use with the GPZ 7000 with GPZ19 is, The deeper the gold the larger the range of controlled coil sweep required to assist a suspect target signal to be recognizable from ground signal Conservative Sensitivity and Volume settings Careful coil control Comfort when swinging the coil Quality clean audio Targeting the right places to detect I'll post more to this thread when I have time over coming days. Jonathan Porter

It seems as if the initial results from Australia are not promising at the moment, still early though. http://golddetecting.4umer.net/t24407-gpz-19-inch-depth-increase-i-don-t-think-so http://golddetecting.4umer.net/t24439-our-air-tests-z14-z19 They really need a US tester going into the future, the prices are too high to buy based only on marketing brochures for some of us now (like me). Problem for me is many reports in Australia are generally from places you must run in Difficult whereas the SW here in the US is almost the opposite and we run our machines close to full bore in Normal. Well, best of luck to those who bought one, looking forward to seeing your results. I'm just going to watch from the sidelines for this one, was considering buying a used GPZ for a quick trip to the desert to use this coil but doesn't look like it's worth the risk from the AUS results.

From http://www.minelab.com/eur/customer-care/product-notices?article=280330 Minelab is pleased to announce that our new GPZ 19 accessory coil will soon be available. The GPZ 19 Super-D coil has been designed to maximize the performance of your GPZ 7000 and give a significant depth increase over the standard GPZ 14 coil. Uncover more gold - and faster! Main Features: Deeper detection (average 30%*) More ground coverage Less ground noise Waterproof (to 1m/3ft^) Super-D coil technology The GPZ 19 coil is expected to be available in Australia mid-year, and overseas soon afterwards. Further product details will be released across the next few weeks, so check back at www.minelab.com for the latest information. *When compared to the average performance of the GPZ 7000 detector with the GPZ 14 coil in typical environments. Actual performance depends upon prevailing conditions. ^GPZ 7000 detector is weatherproof only.

Product - GPZ 19 Application - Gold Prospecting (Waterproof coil to 1m/3ft) Technology - ZVT, Super-D (1 × Tx and 2 × Rx windings) Length - 19" × 18" (480mm × 457mm) Weight - 1.83 kg (4.03 lb) Warranty - 3 years Product Information Page http://www.minelab.com/usa/accessories-1/gpz-19-1 “The GPZ 19 is deceptively stable and quiet... I recovered a 15 ounce nugget, really deep!” “Working my way back up a creek, I found many ounces of weighty gold at incredible depths that had been totally ignored by a GPX with a 20 inch monoloop. I also missed these using the GPZ 14 coil – they were just too deep. The GPZ 19 is deceptively stable and quiet… I recovered a 15 ounce nugget, really deep!" Jonathan Porter - Professional Gold Prospector, Australia “ I just couldn’t believe how smooth it was running for such a big coil!" “When using Normal Ground Type (in milder soils) I’ve actually been able to run a higher Sensitivity setting. I just couldn’t believe how smooth it was running for such a big coil, and I blooded the coil with its first piece after a short time, a very small flat piece of about 0.1g which proved that the big coil hasn’t given up much sensitivity." Nenad Lonic - Phase Technical Metal Detection & Technical Services, Australia (Click on photos below for larger versions) Does It Really Detect 30% Deeper? - http://www.minelab.com/usa/go-minelabbing/treasure-talk/the-gpz-19-coil-does-it-really-detect-30-deeper *When compared to the average performance of the GPZ 7000 detector with the GPZ 14 coil in typical environments. Actual performance depends upon prevailing conditions. Brochure PDF File http://www.minelab.com/__files/f/289337/4907-0843-1 Brochure, GPZ 19 Letter EN_WEB.pdf