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Found 37 results

  1. I just won a Nokta impact and don't know if I should sell it and buy the minelab equinox or not. Any suggestions? Which detector do you think performs better?
  2. Editors Note - this thread was split off from a previously existing topic. I already knew your comments were for your own personal use but if you did not want people to comment on them why post them in the first place? That Aussie guy on youtube also had a sdc 2300 so he was no dunce with Minelabs but it just did not work for him or just had too high expectations.I also respect his right to express his feelings publically as we live in a free society- in Australia anyway. I would quickly have criticised the Impact on any forum if it did not meet my expectations,but there is nothing to criticise except the headphone jack which protrudes too far out from the main housing and can be easily stepped on and the cord is too long.Maybe Minelab could have made the GM 1000 easier to use on goldfields just like my Impact.In my experience there is no smoke without fire.There has not been one post on how the Impact performs on goldfields except mine on any forum and I feel that is a real shame as that is where it excels. I am sure the Impact not only works for me but for plenty of other people too.I found it a little heavy to start with but after a few days with my new arm muscles it seemed light and very well balanced for me anyway and I am getting on, so it would also suit other novices and retirees.There is certainly a lot of resistance towards the Impact in Australia. eg. no Impact tests in the world or Australia in 2 months on goldfields since it came out, but when the GM 1000 came out there were posts about it in goldfields that week.
  3. Sure impact is allrounder but not depper than at max impact does well on hot grounds as well as garret at max operating frequency give nokta high end but on the other hand it fail in dapth test against garret at max but both achine are good in every point of view the biggest point of both machine is nokta runs on three frequncy 7khz 14khz 20 khz so its all rounder but nokta enginear forgot what garret just make an all terrain waterproof metal detector with 13.6 khz submersible upto 10 feet at last my thaught is sure nokta is used for gold prospective but at max with all terrain can be also allrounder i dnt know y nokta made a great product but did a small mistake that is waterproof i am sure in future they also gonna make impact waterproof then the sell of their product will be higher no other detector can compare with it then
  4. Some random notes, and if you don't know what I am talking about as regards some detail of this machine or that I apologize. Well, I finally updated my XP Deus with 11" coil to the version 4 update. Then I hauled it and the Nokta Impact with 11" and Teknetics G2 with 11" out for several hours of cross checking coin type targets. The G2 is a Gold Bug Pro variant running at 19 kHz and I put it up against the Deus at 18 kHz and Impact at 20 kHz. I acquired the G2 new recently to use specifically as a benchmark unit because I am very familiar with it and because in my opinion it does 19 kHz as well as it can be done. I spent hours swapping machines as the hunt machine, then cross checking the undug targets with the other two. Lots of settings tried, with the main goal to try and find some deep fringe type target or target in trash where any machine can get a clear and definable edge. Well good luck with that. All I mainly did was impress myself again with what a little powerhouse the Gold Bug Pro/G2 is for the price. It is fairly mineralized ground but not the worst, 5 bars out of 7 on the G2 Fe3O4 meter, ground balance about 86. The only real "aha" moment was in learning the Impact really likes to upscale shallow small foil when in 5 kHz mode, but shoves the id back down to where it should be at 14 kHz or 20 kHz. All the machines like to upscale deeper aluminum in this ground. All three seemed to get tricked in much the same way on certain targets, like a deep pull tab reading like a dime. For gold hunting purposes I do not mind machines upscaling low conductive targets, and in fact the Impact 5khz mode may have a benefit in nugget detecting because it does want to push light foil (and therefore small gold) higher. But for coin detecting upscaling aluminum is annoying. Pretty much par for the course however for mid to higher single frequency machines. I found running the Impact in VLX1 was nice as I could flip over just one click to the Gen(D) mixed mode program for a dramatically different read and better target definition. Target id numbers in my ground are slightly higher in the "expanded ferrous" modes like VLX1 and VLX2 compared to DI3 and DI4. The Deus V4 Gold Field program does seem to pack some extra punch now, be fun to get it out nugget hunting once the elliptical coil hits the streets. The new Deep mode really seems great while the new Hot mode is, shall I say it, interesting. First time I have used the X-Y screens also. The G2 is what it is, almost no controls but it gets the job done with what it has, and good solid id. Deus and Impact in the other hand have countless options and programs to try, but by and large there is no magic bullet. Three great machines, I can hunt with any of them. It will take a lot more hours to sort it all out. I find when running machines that are all hitting the VLF Wall that it is the "other things" that get my notice. The Impact is obviously the heavier of the three (4 lbs 4.7 oz / 1946 grams), although very well balanced, so I give the feel on my arm award to the G2 (3 lbs 1.5 oz / 1404 grams) and the Deus (2 lbs 4.0 oz / 1020 grams with 11" coil and control box). The G2 and Deus are neck and neck in the comfort department FOR ME* but the G2 feels ever so slightly better to me, I am guessing because the coil is lighter on the G2. The G2 slays both the Impact and Deus for speaker volume if run without headphones, but on the other hand it has no volume control so would be too loud for some situations. Been awhile since I ran a Gold Bug Pro / G2 unit and caught myself when switching from disc mode to all metal when cross checking at one point and forgetting that the "big number" changes from target id in disc mode to ground phase in all metal mode, so I was looking at the ground phase instead of the little speedometer thinking it was target id for a couple goes. That one quirk always had me liking the F75 versus the Bug in all metal. I wish Fisher made a 19 kHz F75! *On arm comfort is a very subjective subject. In particular it has a great deal to do with the size of a persons hands plus length and thickness of their forearm, and their height. You really can't take any one persons word on this subject as it is like buying hiking boots. What fits one person does not fit another. It is not all about detector weight by a long shot. Balance is very important as is the all important hand grip. I am 5' 11" with forearms on the thinner side and smallish hands. For instance, my forearm really bounces around in the large Impact armrest area. The Deus armrest which may be too small for some fits me better. For me personally, the 3.5 lb Teknetics T2 / Fisher F75 is the most comfortable detector I have ever used. It is superbly balanced and something about the hand grip that narrows to the top as it cants forward really makes my hand happy. I can squeeze the armrest shut to fit my arm. So if you find the F75 to be a great fit for you, my comments apply to you. If you hate the T2/F75 setup then what I have to say is less important.
  5. Over on PA a new Impact user is asking for help because they can't get it to go deeper than a few inches and the only thing that I could come up with was to use a concentric coil, because I have not used one out in the field/beach, And a dealer was really trying to sell me one today but not without making ***hole comments about my machine and the CTX when I asked him how it compared to mine, anyways here is that link to PA if anyone has word of wisdom to help out, John. https://www.prospectingaustralia.com.au/forum/viewtopic.php?id=23481
  6. I had somebody ask me to test a couple gold nuggets on my Nokta Impact - preferably a 1 gram nugget and a 2 gram nugget. The person wanted to know the VDI number for each in the DI2 mode and Deep mode. This by accident may be very informative possibly for people who do not know exactly how VDI numbers are generated. The short story is they are a combination of the target conductivity and the size of the target. In other words, silver is more conductive than lead, so two identical items, one made of lead and the other silver, the silver item will have a much higher VDI number. For two items made of silver (or lead, gold, whatever) where one item is larger than the other, the larger item will generally have higher VDI numbers. The Nokta Impact is unique as far as I know in that it has two different target id (VDI) number scales that are used in the various modes. The Impact VDI scale runs from 0 - 99 but as I said there are two different ways the scale is divided. One set of modes uses 0 - 15 as ferrous, all else non-ferrous. The other modes use 0 - 40 as ferrous, all else non-ferrous, expanding the ferrous range. I did not want to sort nuggets all night so came up with a 0.90 gram nugget and a 2.03 gram nugget, both from the same Nevada location, and both of similar shape although one is obviously larger than the other. Here are the results... The 0.90 gram nugget using the DI2 0 - 15 equals ferrous scale has a VDI number of 37. The same nugget in the Deep 0 - 40 equals ferrous scale reads 63. The 2.03 gram nugget using the DI2 0 - 15 equals ferrous scale has a VDI number of 32. The same nugget in the Deep 0 - 40 equals ferrous scale reads 56. Here we have a smaller gold item giving a higher VDI number than a larger gold item. How do we explain these results? Gold nuggets are not pure gold. These nuggets are probably around 85% - 90% gold. The rest is mostly silver. Here is a strange fact. Silver is more conductive than gold. You would think adding silver to gold would raise the VDI number. However, reality is pure metals conduct electricity better than alloys, and so adding silver to gold actually lowers the conductivity and therefore the VDI numbers. In this case the size, shape, and most importantly, alloy composition of the larger nugget is causing it to read lower than the smaller nugget. This is a great example of why if you are looking for gold nuggets you at a minimum dig all non-ferrous targets. And because weak nugget signals (very small nuggets or large nuggets deep) in mineralized ground can read as ferrous, the only truly safe approach is to dig everything. Here is a photo of a large variety of gold nuggets and some coins I tested with the White's DFX, which uses the same -95 to 95 scale as many White's detectors. Again, you can see that size and VDI numbers do not correlate due to shape and purity differences. In general the paler gold has higher silver content. Click on photo for larger version.
  7. On his forum at http://www.dankowskidetectors.com/discussions/read.php?2,121626 This gives a very rare, in fact as far as I know, never before seen inside look at the prototyping process and field test reporting. Thomas Dankowski is a true "engineer nerd" (I say that as a compliment) and so goes to extreme lengths and detail beyond what would normally be seen. His extremely lengthy and copious notes also provide many insights about what to possibly expect from the new Nokta Impact. Keep in mind things changed from the early reports to the final product so things Tom talks about early on change at later dates. Quoting from his thread out of context could cause a lot of misperceptions to arise. The thread well illustrates something I have observed for some time. When it comes to max depth, standard single frequency induction balance detecting technology is tapped out. Look at the struggle to obtain not another inch but even just another 0.1 inch of depth. The main advantages have come as of late in recovery speed and the ability to separate closely spaced targets. Max depth however is at a standstill. Tom's testing just confirms what I have been seeing for years. It is near impossible to discern more than hair splitting differences for max depth between most top of the line VLF detectors these days. And now a Report on the Nokta Impact from Keith Southern And a Report From Ziggy Report from Lawrenzo - Low-Boy/LCPM Report from tnsharpshooter Report from goodmore Report from Sven1
  8. Got delivery of a Nokta Impact detector early June after it was unpacked by Nokta at the shipping point and the latest software version installed and then repacked.Two week delay but worth it.First impression of the unit on the first day of use was one of amazement on how stable it was on our very heavily mineralised ground on our goldfields.I had reservations before that it would be tough going for the Impact but happily these did come to reality.The auto GB was very easy to do and the unit only needed to re balanced every 15 minutes just to make sure.I would recommend this procedure in very heavily mineralised soil. On the second day I was mostly using the GEN mode and on the fourth day I got sick of digging up all the hot rocks and turned up discrimination in GEN mode to its minimum setting of 01.That way I got normal tones when sweeping at normal speed on hot rocks but when checking out the signal and sweeping slowly I got the iron low tone.As a novice user I did not have to change the settings except to increase the frequency to 20 Khz more suited for gold,as the settings are optimized for each mode.Isat setting was left at default of 06 and gain at 70.In the discrimination modes the extreme patches of mineralisation which were 2 feet in diameter gave a target response,but in GEN mode these came up as a broad patch and not a spiked signal so were clearly not genuine targets.It may be possible to eliminate this target response in the disc. modes by altering the settings so I would appreciate getting any feedback from other prospectors on this subject.This VLF detector is clearly marketed by Nokta as a coin and relic hunting detector for use in parks and on beaches but can also be used on goldfields for hunting nuggets.Fitting the larger 16 inch Im40 coil will give more faster coverage of terrain but in heavily mineralised ground it would not necessarily give greater depth although from previous experience adding a 16 inch coil on an old Whites detector turned it into a mean nugget hunter in the days when larger nuggets were still plentiful..Further I would like to point out that higher frequency machines are better for finding sub gram nuggets but in heavily mineralised ground are more unstable.Fitting large coils on these machines may incur penalties such as higher instability in these conditions.I did encounter a huge patch of extreme ground on top of a hill only once in 30 odd hours of detecting but switched the unit to COG mode.Unfortunately I could not continue in COG mode as we spent 2 hours on top of this hill and my wife got cold and wanted to leave.I had found a 1/4 and 1/2 oz. nuggets on top of this small hill previously with an old Whites detector so must investigate this patch further with the COG mode.This hill produced lots of surface nuggets during the goldrush and the west side has been surfaced down to bedrock on the top and to pipeclay on the side of the hill,so basalt lying on top of pipeclay.Further south towards a small town called Dunolly there are numerous shallow gullies which produced lots of large nuggets and also dozens of gold reefs.Even further south just north of a large town called Maryborough there are diggings at Simons where diggers had to penetrate a layer of basalt to get to the numerous nuggets which were lying on top of pipeclay.A large nugget was found near Dunolly 2 months ago by a prospector which was about 4 kilograms in weight.At Maryborough there is a main street full of shops built over the main lead which is estimated to still contain lots of gold.At Wedderburn a town at the northern tip of the Golden Triangle residents ripped up the main street in the 1950,s looking for gold.Such is gold fever.
  9. Details here. http://www.dankowskidetectors.com/discussions/read.php?2,129616 I included release date in title so maybe to help avoid confusion for folks later on
  10. What is the very latest Impact firmware as of 6-23-17? Mine should be here sometime next week and before I get started I will download and install the latest firmware but I'd like to be sure which one it actually is as I have seen that there have been many updates of late ( which is a good thing) but I don't want to start to get used to one way and find out that I'm not up to date. Thanks. gene
  11. The Makro and Nokta 9.5" x 5" DD closed elliptical design has been discontinued in favor of a open style design for the Impact, the IM24. The new design is not bouyant like the old design and so will be popular with water hunters in particular. Part numbers for the new coil are available for other Makro and Nokta models There is also a new 5" round coil for the Nokta Impact. RC24 Black 14 kHz - Racer 1 (Red Racer) and Racer 2 FC24 Black 15 kHz - FORS CoRe FR24 Black 19 kHz - FORS Relic FGP24 White 19 kHz - FORS Gold+
  12. Hello. I'm still considering acquiring my first metal detector. My main target would be gold nuggets in an area where gold has been mined before for millennia and there are plenty quartzite veins in granite rocks and a good number of small winter creeks. However I would like to also use my detector on nearby beaches and finding coins and relics is also a possibility around here, because of a rich historical background. So I guess I would need a solid all-rounder with could operate on a frequency high enough to make it hot for gold nuggets. It should be priced around the 1000-1250 mark and I cannot justify a second, specialized metal detector. I recently looked at the Nokta Impact and got interested. Do you think it would fit the bill? What configuration would be more effective? Or are there other alternatives that you might recommend - like the minelab X-terra 705 (my previous favorite choice)? Thx Ricardo
  13. Hello all...I get emails from customers asking for an update on the optional coils and headphones for the Impact. IM24 Waterproof DD Search Coil 24 x 13 cm (9.5" x 5") and IM40 Waterproof DD Search Coil 40 x 35 cm (15.5'' x 14'') are now in production and have shipped to most of the dealers around the world. Wireless headphones - test samples have been received by the testers and we are waiting for their feedbacks. If no issues are encountered, we will go to production. Will keep you updated. Dilek
  14. I have emailed Dilek the following. It would be nice if Impact was updated giving the user the choice of which frequency to be used to normalize the Vdi of targets. For hunting sites with loads of modern trash, it would be nice to be able to run 20khz, yet have the ID geared to 5khZ. This just one example. Much like the Rutus Alter 71 does.
  15. I have been laying fairly low with the Nokta Impact so far. Part of that is I have been busy on other things. The main reason however is I quickly zeroed in on how I think the Impact will best serve me as a detectorist. In general I think I can speak for most people when I say we all like lighter weight detectors. However, one area where lighter is not better is when you use large coils. Balance is every bit as important as weight as it determines the amount of torque applied to your wrist as you swing the detector. A large coil on a very light detector creates a very nose heavy detector, one that will put more strain on you when you detect than a heavier but better balanced detector. It just so happens that the Impact with the rear mounted battery power/speaker module is a good design for a large coil from an ergonomics standpoint. This is especially true when in my experience Nokta has designed large coils that are quite light for their size. I was probably one of the first people that really zeroed in on the new IM40 15" x 14" DD coil when it was proposed for the Impact by Nokta. I got on an early wait list for the coil, and just received mine. Nokta Impact IM40 15.5" x 13.75" coil with scuff cover The IM40 DD coil measures 15.5" x 13.75" and comes with a fitted skid plate/scuff cover. The coil weighs 1 lb 13.0 oz or 822 grams as pictured with skid plate and cable and weighed on my postal scales. Yes, I had to say that as some people exclude cable weights from coils! For comparison the stock 11" x 7" IMP29 coil weighs 15.7 oz or 446 grams. I like the flat blunted ends on the IM40, which does help the Impact stay upright as the trailing edge of the coil acts as a flat bearing surface when the detector is at rest on the ground. I am not usually a fan of larger coils and in fact tend to lean to smaller coils for a lot of my urban metal detecting. Large coils "see" more area which can work against them in highly mineralized ground or in areas with lots of closely spaced trash. However, large coils even if they do not get more depth in highly mineralized ground can cover more area faster, and often ground coverage is every bit as important if not more so than depth. In medium to lower mineral ground a large coil can also offer that magic thing all detectorists crave - more depth! The Nokta Impact has another trick up its sleeve that favors large coils; the ability to change operating frequency on the fly. High frequencies offer more sensitivity to small items and quicker separation in dense trash as well as extended battery operating time. The main issue with higher frequencies is they also "light up" highly mineralized ground and hot rocks more so than lower frequencies. This can work against machines that are locked into higher frequencies when attempting to employ large coils in highly mineralized ground. Lower frequencies give up some of the high frequency "hots" on small targets but also are less sensitive to ground issues, including salt mineralization. The ability of the Nokta Impact to run at 20 kHz, 14 kHz, or even 5 kHz makes it very well suited for running very large coils. This is accentuated by the plethora of all metal modes available on the Nokta Impact which can deliver extreme performance when coupled with a large coil. The bottom line is I think the Nokta Impact and IM40 coil may be one of the very best options available for a person wanting to run a large coil on a VLF detector, with depths in all metal modes and milder ground that will challenge many PI detectors. For a lot of what I personally do, like gold prospecting or beach detecting, I will first attempt high frequency, high gain operation and then back off as ground or EMI conditions require. One thing it is important to know when running the Impact with large coils is how the Gain control works. If the Impact is running at Gain levels that are too high, the OVERLOAD message will appear on the screen. Note: You can increase or decrease the overload volume with the on/off button. When the volume of the device is at maximum, the overload volume will be low. As the volume of the device is lowered, the overload volume will increase. The electronic Gain has at least three distinct levels. There are distinct boosts between settings of 39 and 40 plus again between 69 and 70. Setting over 90 are a sort of hyper-Gain region only obtainable in low mineral/low EMI environments. Therefore I may attempt to start out in 20 kHz and a very high Gain. If overloading occurs I will lower the Gain for smooth operation, paying particular attention when I get down to 69. From there on down I need more field time, but at some point it will be better to drop to a lower frequency than to continue to lower the Gain setting. So in theory if at a setting of Gain 39 I still have issues at 20 kHz, it is time to go to 14 khz and run the Gain back up high. If conditions are still not amenable to running at 14 kHz and high Gain settings, I would then drop to 5 kHz and again attempt to run higher Gain levels. Note: people hunting larger, higher conductive items like silver coins and brass relics may very well just start out at 5 kHz. My focus is usually on lower conductive, smaller items i.e. gold. I so far have only done a small amount of detecting in a local park. I first tried Di3 and while it was working well enough the trash density was high and interpreting signals with a large DD coil can be challenging, especially when the coil generates multiple signals on very shallow items. I finally went to the unique GEN(D) mode and it was night and day. The GEN(D) all metal mode combined with the VCO effect makes sizing targets and identifying shallow targets a breeze, even in a trashy park situation. Shallow ferrous is easily identified also using GEN(D). There are several all metal modes a person can employ on the Impact as well as the extended range ground balance available in the COG (COnductive Ground). While the Impact performs ground balance in the range of 20-90 automatically in the other discrimination modes, it ground balances in the range of 0-90 in the COG mode. This enables easier ground balancing on conductive grounds where normally ground balance cannot be performed at all or performed with difficulty, such as salt water beaches. Remember that ground balancing to salt conditions always comes at the cost of reduced sensitivity to small gold items. There is more I could mention about this subject but I really need time to get the hours on the Impact running the large coil to get more into specifics about how to get the best performance out of it. Large coil VLF hunting is not for everyone and is not a magic bullet in any case, but it does offer possibilities for the more adventuresome detectorist. I will close with a picture of my Nokta Impact with new IM40 coil. The detector with this coil is only slightly nose heavy (keep the rod as short as possible) and weighs with batteries 5 lbs 2.0 oz (5.13 lbs) or 2322 grams.
  16. Hello everyone.----Steve, I respect your input & opinions--always have!----Here's a couple of questions I have for you.---Considering detector performance---With the Nokta Impact running at 20 kHz and the G2+/F-19 with their 19 kHz---IYO, which one of these detectors would give the best performance for hunting for (smallish) gold?-----Also, there has been a lot said (hype?) about the Impact with its 5, 14 & 20 kHz frequencies being able to replace other detectors running in that range.---A sort of "one for all" (if you will).-----Do you feel that could truly be the case?-------I said two questions---here's another one! What is your "overall" opinion of the Nokta Impact?-------Thanks--------------Del
  17. Nokta Impact Finds

    Hi All, A while back, I was going to buy the Rutus Alter 71, but, decided to wait for the Nokta Impact to be released. So, I went to an event in New Hampshire called BONE, (Best of the North East). I was hunting in a natural hunt on private property. I had just received my Impact on the April 21, and hunted on the 26th, and 27th. The place was a large farm with plowed fields, large open grass areas, and woods. The first day, I hunted a plower field, and the large grass area. I have to say that the Impact is so easy to use and set up. I started with the stock coil 7x11, DI3, 20khz, sen at 85, iron set a 2, default dis. At the end of the first day, I found the piece of a buckle in the plowed field, and a small button and half of a silver tumble in the grass areas. The Impact would sound off on the iron to let me know it was there, but with this iron volume, it was not annoying. Good targets were loud, but the iron tones soft. This was an excellent feature that I like very much. So on day two, I decided to hunt in the woods where an old cellar hole was. This was a site of an 1745 tavern. I set up in Deep mode, 20khz, stock coil, sen at 70, iron volume on 1, and default dis. As I stated to detect, I could hear iron all over the place, plus there was an electric fence that was causing others with Deus and CTX 3030 trouble. But my Impact ran very smooth. As I made my way around the perimeter, I continued to hear mass iron until I got a solid signal reading at 71 at about 8 inches. I dug down 6 inches and hit a rock, checked the hole again, and could hear the target, but also the iron all around on both sides. I removed the rock and I could see what looked to be a thin coin. To my surprise, it was an King George II 1749 farthing in excellent condition. I continued to hunt and a foot to my right, I got a another strong signal reading 83. At 4 inches down, I recovered a King George II half pence 1787. I couldn't believe it, I checked my hole again, and got another 83 with iron all around the target. I removed a second large copper without a date, but looks to be the same. I also found a large button and round piece of lead used for corks back then. So, everything I found was from the 1700 era. In closing, this is what impressed me about the Impact. It is well balanced, easy to use and set up, and offers lots of features. As an retired Garrett, Teknetics, Makro, Whites, and XP dealer, I have used a lot of detectors, and I have never found any to be able to find targets in the iron like the Impact. I not saying it the best out there, or better then the rest. But, it does a great job in iron and offers great value for its price point. I am not a tester, just an end user, and I am glad that I purchased the Impact. Treasuredude.
  18. There is a previous thread with a lot of speculation about just what is going on with a couple of the Nokta Impact all metal modes, the Gen(D) and Sta(D) modes. The thought was that they are mixed modes - in other words modes that are running both all metal and disc in parallel. The speculation garnered attention and we have now been provided this explanation directly from Nokta Software Team Leader Alper Tozan regarding these 2 modes: ''I read a lot of comments about Gen (D) and STA (D) modes in some forums and firstly, I want to thank you about all your positive thoughts. On the other hand, I want to clarify one thing. In some forum discussions, these modes are defined as ‘’mix modes’’. These modes are not mix modes as mix modes typically result from at least two different software algorithms or hardware circuits working at the same time for decision making to discriminate and detect metals. These mix modes also show characteristics of two or more different modes at the same time including handicaps of each signal processing. Gen (D) mode, on the other hand, is a true threshold based all metal mode with motion that can discriminate metal without needing any other hardware or higher order software process level. So it always behaves like a classical true threshold based all metal mode but with iron tone and tone break.'' Frankly, for me that raises almost as many questions as it answers. Is an all metal mode that discriminates an all metal mode? Is it not instead a different kind of ferrous/non-ferrous discrimination mode? Whatever it is, it is unique, and that's enough for me! So I will do what I normally do and ignore what is going on under the hood and pay attention to just what it is these modes actually achieve by way of useful results in the field. More on that at a later date. From Nokta Impact Owners Manual, pages 12-13: Static Mode (STA) This is a non-motion mode. In other words, the device will generate an audio response when you hold the coil stationary without swinging over the target. The audio response increases in volume as the coil approaches the target. This mode is recommended for larger and deeper metals. In the STA mode, the device will generate the same audio tone for all metals and it will display the target ID on screen. At the same time, the ID scale will fill up to the right in proportion to the signal strength. Target ID range is 00-99. 00-40 are ferrous and 41-99 are non-ferrous metals. You can discriminate out all IDs below a certain ID by using the Disc. setting and simply avoid these metals in the field. When the device detects a discriminated metal, it will not produce an audio response or an ID. However, the ID scale will fill up to the right in proportion to the signal strength. The threshold in this mode is internal and cannot be adjusted by the user. Changes in the ground and temperature may lead to drifts in the threshold. Threshold drifts will be reflected in the ID scale either in the positive way (right side) or the negative way (left side). The device may emit an audible response in the positive drifts but not in the negative ones. When the threshold drifts, pull the trigger once to retune the detector. Retuning periodically while searching in this mode is recommended. IMPORTANT! For a more stable operation, try keeping the coil consistently at the same height above the ground where you retuned the detector. IMPORTANT! If you retune the detector over a target, the threshold will drift to the negative side and the device will no longer detect the target until the detector is retuned. In addition, the depth of the detector will also decrease. If the drifts are substantial and retuning does not improve the situation, increase the iSAT setting in the Expert Settings to a level where the drifts are eliminated (for detailed information on iSAT please refer to page 24). As the iSAT is increased, the device may detect weaker signals but will not be able to detect the targets anymore if you hold the coil stationary or sweep back and forth over the target. If the drifts still continue frequently, drop the gain to 39, decrease the iSAT and re-ground balance. Static Delta Mode (STA (D)) In principle, it works the same as the static mode. The difference is that the static delta mode will generate the same tone for ferrous and non-ferrous targets at fringe depths but it will discriminate the shallow ferrous targets by emitting a low iron tone. Also, Disc. setting is not available in this mode. Please refer to Table 2 at the end of the manual for different settings used in STA and STA (D) modes. General Search (GEN) Different than the other modes, this mode features a threshold tone which is continuously heard in the background. General Search (GEN) mode is used in 2 different ways in the IMPACT: 1) with the Disc. setting disabled at 0 2) with Disc. enabled (non-zero). When the device is first turned on, Disc. setting will be off. When the Disc. is set at 0, the device does not discriminate targets and detects all targets (metals, mineralized rocks etc.). ID of the detected target is shown on the display (except for negative hot rocks) and the same audio tone is provided for all targets. The audio tone increases in pitch as the coil approaches the target. This is the typical All Metal mode found in most detectors. When using the Disc. Setting in this mode, the device will emit a low ferrous tone for all targets below the Disc. Setting, and a higher tone for all targets above the Disc. setting which changes in pitch as the coil approaches the target. Let's say you set the Disc. to 20. The device will generate a low iron tone for all metals with 0-20 ID and a higher tone for all targets with 21-99 ID. Upon target detection, the threshold will momentarily go silent and only the target audio response will be heard. The duration of the threshold's silence is directly related to the level of the iSAT. Gain, threshold and iSAT settings in this mode are optimized to provide the best performance on different terrains. You can modify these settings based on ground conditions. We recommend using the GEN mode when discrimination is not important and not using it in heavy trash areas or areas containing many hot rocks. Audio Boost in the General Search Mode This feature is not included in the settings on screen. Boosts the sound of weak signals received from small or deep targets making it easier for you to detect those uncertain targets. It is recommended that audio boost should be used on a temporary or as-needed basis because it will not only boost the target signal audio but it will also boost the volume of ground noise and false signals along with the threshold hum. Audio Boost consists of 5 levels (b1-b5). At start up, the Audio Boost level is set to low (b1). To increase the Audio Boost level, pull the trigger and press the minus (-) button simultaneously. Audio Boost will only work in the GEN mode. General Search Delta (GEN (D)) In principle, it works the same as GEN mode. The difference is that the Gen (D) mode will generate the same tone for ferrous and non-ferrous targets at fringe depths but it will discriminate the shallow ferrous targets by emitting a low iron tone.
  19. Impact Software Update

    Dear Valued Members,This is to inform you that we just released an update for the IMPACT based on a few feedbacks which is now available for download at the IMPACT product page below:http://noktadetectors.com/onlineupdate_impact-metal-detector.aspR1_V1.13_V1.11 (System Software V1.13 / LCD Software V1.11)Updates Made : Individual frequency shift values have been assigned for each frequency (5kHz/14kHz/20kHz) and the frequency shift feature has been improved overall.Regards,Dilek
  20. Just posted April 26 - regular users are getting their hands on the Impact now. Some nice finds plus some lessons in what not to do....
  21. Dear Valued Members: We are proud to announce the new IMPACT, that has been tested in 5 continents by more than 30 engineers, experts and users! IMPACT is a 3-frequency device (5kHz/14kHz/20kHz) combining multiple detectors and enabling a unique yet easy-to-use detector experience for new to experienced detectorists. Impact Features: 12 Search Modes (2 non-motion, 2 all metal, 8 discrimination modes) Advanced Discrimination & Unmasking Ability Online Firmware Updates Optional 2.4 GHz Wireless Headphones Vibration LED Flashlight Operating Frequency: 5kHz - 14kHz - 20kHz Warranty: 2 years Weight: 1.8 kg (4 lbs.) including search coil and batteries 12 Search Modes: 2 Non-motion Modes (with audio discrimination) 2 All Metal Modes (with audio discrimination) 8 Discrimination Modes - 2 Tone / 3 Tone / 4 Tones / 99 Tones / Deep / Conductive Ground / VLX1 and VLX Ground Balance with 3 Options: Automatic, Manual, Tracking Notch Filter: Discriminates single or multiple Target IDs of unwanted metals by silencing them or giving an iron tone. Tone Break: Adjusts the break points of the target response tones on the Target ID range. Iron Audio (Fe Vol): Turns off or adjusts the volume of the low iron tone Audio Tone: Changes the frequency of target and threshold tones (150Hz - 700Hz). iSAT: Allows for a stable operation of the device by eliminating false signals caused by high mineralization and hot rocks in the all metal and discrimination modes as well as eliminating threshold drifts caused by ground and temperature changes in the static modes. Magnetic Mineralization Indicator: Shows mineralization intensity of the ground. Extra features at the push of a button: Audio Boost, ID Normalization, Target ID Depth Level. Backlight (Bright) FD / Save: Easily saves your settings or restores factory defaults. PRICING AND AVAILABILITY 11000701 IMPACT STANDARD PACKAGE MSRP: $849 USD Includes: Waterproof IM28 - DD Search Coil 28 cm x 18 cm (11'' x 7''), Headphones, 4 x AA Alkaline Batteries, USB Cable 11000702 IMPACT PRO PACKAGE MSRP: $999 USD Includes: Waterproof IM28 - DD Search Coil 28 cm x 18 cm (11'' x 7''), Waterproof IM19 - DD Search Coil 19 cm x 10 cm (7.5'' x 4''), Headphones, Carrying Bag, Protective Covers, Stand, Extra Lower Shaft, AC & Car Charger, 4 x AA Rechargeable Batteries, USB Cable Optional Search Coils: Waterproof IM40 - DD Search Coil 40 cm x 35 cm (15.5'' x 14'') Waterproof IM24 - DD Search Coil 24cm x 13cm (9.5'' x 5") Owners Manual http://noktadetectors.com/downloads/impact-user-manual.pdf We are now taking the pre-orders from dealers and product will start shipping to dealers the 3rd week of March. We will ship the orders to dealers in the order they are received. Should you have any questions regarding the product, please do not hesitate to contact me. Regards, Dilek
  22. Impact On Gold

    Hi all, While up in the goldfields earlier this week I tried the Impact on a trashy spot. I used the stock 11x7" coil in the All-metal Gen mode and 20 kHz. I was very impressed at how well it ran. I was in "warmish" mineralisation. Mild sandy wash, but with various sized hot rocks. It was where a forest track cuts across a creek/gully. This particular junction has quite a bit of trash, so I just detected along ignoring any very low numbers. Most targets dug were non-ferrous. I got fooled on one large bit of wire that was sitting upright. I dug about 4 hot rocks that were a very faint but good sounding signal, but not strong enough to register any ID on the screen. The most impressive dig was a nice clear hit ID of 35, and I dug down and it was a small round seal off a juice bottle, which was sitting on it's edge. No gold, but Zed's have cleaned up all the fainter signals in this spot so no surprises there. My settings were Sens 66-72 and iSat on 6. I wasn't using Tracking, so was re-ground balancing using the trigger. I've done some tests using the smaller 7.5" elliptical in 20 kHz, against the Fors Gold+ (19 kHz) with the 5" coil, and there really isn't much in it. The Gold+ has a little bit more aggressive sound to it, but the Impact is smoother, sounds pretty much like an older wiser Gold Racer The threshold and tone adjustments steps in the Impact are spot on - two features I rate very highly for a unit to be taken seriously as a gold machine. It's really looking to be an excellent all-rounder.
  23. Hi Steve & All Im UK based and detect for coins, relics, well just about anything really, I may even have found some info of a river that may produce gold, Im not sure how many of you guys can help, Im in the market for a new detector and I have been pondering the XP Deus for some time but have held fire on my purchase because of the release of the Nokta Impact, I am always on this site looking at the reviews etc and wanted to hear any experiences of the Nokta Impact, I know its early days yet and reviews are thin on the ground, but experts like yourselves will have an initial feeling about new gear and instantly know if you like it or not, in the UK the Deus will be around £300-£350 more expencive than the Impact, so my question is to those who may have both, Which do you prefer, why, which would be your go to machine, does the Impact compare to the Deus, which do you think maybe the best all rounder, is the Deus worth the extra $ Any help is greatfully received, Thanks in Advance, Shanan
  24. Nokta Impact Gold Coin Target ID Responses* in GEN, GEN (D), STA, STA (D), DEEP, VLX1 and VLX2 modes (0-40 ferrous, 41-99 non-ferrous) Seen notes below on alternate target ID scales. .................. NORMALIZED....... 5-Khz.....14-Khz...20-Khz $1.00 Gold Coin....... 51............ 47...........52..........54 $2.50 Gold Coin....... 62............ 51...........62..........70 $5.00 Gold Coin....... 72............ 55...........72..........80 $10.00 Gold Coin...... 82............ 65...........82..........83 $20.00 Gold Coin...... 84............ 75...........84..........85 The normalized setting equalizes responses in all frequencies to be the same as the 14 kHz response. At start up, the Nokta Impact will utilize the ''Normalized'' ID scale and not the Standard ID scale. In other words, the IDs will not change upon frequency change and the device will generate the 14kHz IDs in each frequency. However, based on ground conditions IDs may vary for certain metals. If you prefer to see the different IDs produced by each frequency, you need use the ''Standard'' ID scale. To switch to the standard IDs, pull the trigger and push the (+) button at the same time. Letters ''Sd'' will appear on the screen. If you wish to revert back to the normalized IDs, repeat the same process and letters ''no'' will appear on the screen. In General, low frequencies spread out coin responses but compress low conductive responses. High frequencies spread out low conductive responses but move coin responses closer together. See the target table below for reference. Therefore, running in in the 5 kHz "Standard" or un-normalized mode will provide better target ID separation while coin detecting. Running in 20 kHz Standard mode will provide more definition between U.S. nickels, gold jewelry, and various aluminum items. However, target ID number changes between modes may be confusing for some people and make the Impact harder to learn. In need this case using the Normalized setting is recommended. The Nokta Impact is somewhat unique in that depending on the mode there are two possible target ID scales in use. In DI2, DI3, DI4, DI99 and COG "coin and jewelry" modes, the ferrous range is 00-15 at factory defaults. This provides the most target definition in the non-ferrous range for people only interested in non-ferrous targets. In GEN, GEN (D), STA, STA (D), DEEP, VLX1 and VLX2 "gold and relic" modes, the ferrous range is 00-40. This provides the most target definition in the ferrous to non-ferrous range for people who hunt for items where these ranges overlap. It may then be seen that by picking a combination of both the mode used and a Standard operating frequency the Nokta Impact can customize target ID responses to a degree quite rare in metal detectors offered today. For instance, most coin hunters may want to use the DI2, DI3, DI4, DI99 modes in Standard 5 kHz frequency mode for the best target definition on silver coin range targets. *The gold coin responses are from the Tom Dankowski post at this location.
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