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PhaseTech

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Posts posted by PhaseTech

  1. If it meets the following criteria, it should be a success here in Oz.

    1. Must be able to handle highly mineralised soils. If it can totally blank out hot rocks like most modern Minelab's do, that will go a long way in becoming a success

    2. Long run time, preferably 10 hrs plus

    3. At least as sensitive as the SDC

    4. Good EMI immunity

    5. A good range of coils - three different sizes at launch is a good target 

    6. Light but also robust. I.e. don't shave too much weight and we're left with a very flimsy toy. 

    7. A manual analog frequency tune pot. 

    8. An adjustable tone - probably should be top of the list! 

     

  2. I like having the choice, and even though I mostly use the GPX in Fixed, there are times I use tracking. I find Slow Tracking is very unlikely to track out a genuine target, especially if you use wide sweeps across the suspected target area, getting the coil across lots of ground as well. At the end of the day, if something's pulled you up, you should have a dig at it. 

    I know a spot where I used to take small groups out for training, where the surface of the ground looks pretty uniform, but the soil underneath is very variable, red clay, to white clay to pink/schisty type stuff all within 3 metres. I had buried a target for demo purposes some months before. Setting the detector to Fixed, ground balancing and then sweeping across the ground to the target I got a signal which was a bit drawn out, and not too exciting sounding. I went back to where I started, put it in Tracking and started swinging towards the target. Whammo, clear, crisp response.

    The thing I learned with Smooth timings especially, was that just because your detector isn't giving you false signals, doesn't mean you're perfectly ground balanced. And even being slightly out of balance will cost you signals. So when running Fixed, I always re-balance as part of my sweep technique - don't wait until your detector is upset, as then it's too late....how much ground have you waked over with a less than optimum ground balance?? If you are lazy, you'd be much better off in Slow Tracking. 

  3. Thanks Lunk. I have dug other cornflake nuggets over the years, even one not too far away with the 5000 and old 18" mono, but with the GPZ they are very common up there. A few have also fallen victim to the 14x9" Evo in more recent years - something about the flat wound elliptical that really sniffs out flat thin pieces. 

    5000 14x9 evo.jpg

  4. I have two or three scoops in the gear bag, but as I usually just put it in the cargo pants leg pocket, I don't bother with lanyards or string with a clip - but it still falls on me to remember to slip it in the pocket in the first place! The thing I always do forget is my mini tripod!! But I very rarely go out with the intention of filming, so have to make do with what's available. I have a couple times managed to successfully tape my camera (i.e. phone) to a conveniently hanging branch which works great as long as it isn't windy! 

  5. In South Australia we are really limited to public accessible fossicking areas. We have two areas open to the public at Echunga: Chapel Hill & Jupiter Creek Diggings, and another area which is the old Gumeracha Goldfields. The area available to the public is now a pine plantation, so access is via a permit available from ForestrySA. 

    So when 90% of the old diggings has had pines planted on top of it, unfortunately a lot of the old gold workings such as shallow diggings, test pits, shafts, wash piles etc are simply no longer visible, so it does present a challenge of knowing where to look, but there are also some positives: 1. Old pines give you nice shade during summer, and 2. When they harvest, the ground gets churned up from all the machinery. With all this extra time I've had on my hands, I've had time to sort through a lot of footage and found many videos from my visits to the forest, with hopefully some valuable info to others. 

    Part 2 will be up later today. 

  6. On 6/4/2019 at 12:26 AM, Steve Herschbach said:

    I really like my Gold Kruzer. It really has not got the attention it deserves. Just way too many good gold VLF nugget detectors came out the last couple years so people are kind of drowning in the options.

    Hey Steve, the Gold Kruzer is doing pretty well down under. In the last 6 months, it is my biggest selling VLF gold beeper by far. In second place would be an equal split between the AU Gold Finder, Gold Monster and Gold Racer. Everyone who has bought one has been impressed with it. And warranty claims are virtually non-existent. I've put a gold middle shaft on mine, off the AU Gold, I think it looks better 😉 First time out with the gold shaft on, I pinged a 0.06 gram in amongst a bunch of partially filled detector holes, so it's staying on. 

    I got off the phone to a customer just before posting this, who pinged a 2.2 gram bit with his Impact and the stock coil, so you are right, there are many good capable options these days.

  7. Yeah I'd think like the 12x8" Evo, the 9" Elite may be too much for a GP machine, they are just too sensitive! Be dynamite in very mild soils though... 

    My remote GB switch was literally a relocation of the control panel switch. I removed the switch and put a DC plug in it's place, so didn't have to drill the control panel. Then with a bit of boring on the handle, mounted the switch up there. It was forward for tracking, back for fixed. Worked great. 

  8. On 3/12/2020 at 12:28 PM, Sven1 said:

    Handle angle was designed so your wrist is in a natural position with out having to add stress from needing upward or downward wrist pressure to keep the detector in a balanced position. And many won't notice how good the handle is unless they currently have a bad wrist. When a smaller coil is attached to the Simplex, should balance about perfect.............

    The menu dwell time could be a second longer. By the time you decide on the changes you want to make, it returns to the main screen.

     

    Agree and agree. I find the handle excellent, and I like that there is the extra bit of "meat" under the control box to accommodate larger hands. I quite like holding it here in a sort of pistol grip. I find it very comfortable. 

    For a unit designed for beginners, it is making a lot of experienced hunters quite happy as well. 

  9. 23 hours ago, phrunt said:

    I must say I love the factory coil options Nokta give.   If they made this in higher frequency it could almost be a Nokta Gold Monster 🙂

     

    Yes, that was my thought when Nokta first advised about this unit. Even at 14 kHz though, with the 5" or 7" elliptical I bet it would still be pretty hot on small gold, same as the Kruzers and Anfibio. Most Nokta Makro machines have a pretty raw/unfiltered audio in the all-metal modes, which gives them very good sensitivity. I know I tested the Impact in 20 kHz with the 10x5" coil, vs the Gold Kruzer with 7x4" coil, and the Impact was only slightly behind down to quite small gold. Also the Fors Gold+ with the 5" coil behaved a lot more like a 30-40 kHz machine than what you'd expect from a 19 kHz unit. 

  10. On 3/9/2020 at 6:27 AM, Jonathan Porter said:

    I should point out here that there are some differences between what we call the “Smooth class of timings” and “Normal” type timings, inherently the Smooth type timings (difficult modes on the GPZ, Fine Gold, Enhance and Sens Xtra on the GPX machines) have increased Gain built into the timings,

    JP

    Sorry for being the typo police, but I think you meant Sensitive Smooth, not Sensitive Extra. 

  11. Hey Ash, 

    Glad to hear that. 12" round or 12x7" in the advantage? 

    Yes the level adjust was always a tricky one. I used to use Fixed in milder soils, and in variable ground when using Tracking, I found the Level Adjust on about 10 o'clock worked well. Later when I installed a tracking switch on the handle, I never (very rarely) used Tracking, as it was so much easier to control the machine. 

    In very mild ground, running mono coils on Normal/DD position was deadly. 

    One thing I could never really work out. On my GP extreme when using a Coiltek 14" Pro DD, it seemed to run better with my home made battery regulator set to 6.9 V. When I used the same system on the 3500 I seemed to get a more stable threshold running a stock 6V gel cell. Couldn't work that one out..... I later switched to the 15x12" Commander DD, running my regulator on 6.7V (unloaded) and that combo worked great. Medium tracking, Mono and Sens Extra could handle most of the soils here and got some good results.  

  12. Something else I've pondered recently relating to early PI's is that during the SD & GP series days there was good development in DD coils. Coiltek had the terracotta series and then PRO series. Minelab went from super goldsearch to the black GPextreme coils and then to GP series, and Nugget Finder had their Fiberglass DD's. The 16" DD was a ripper on the GP series machines. As soon as the GPX4000 came out and the birth of the Smooth timings (later adding Enhance and Fine Gold to the mix) development on DD coils sort of died. I may be wrong but the only new DD coils to hit the market were the Commander 15x12" DD, Coiltek changed their 14" Pro to a tan coloured DD Pro Elite, and then more recently Detech released the 15" DD Ultimate, and last year saw the Nugget Finder 25" DD X-Search. Anyway, my thought was if Minelab/Bruce Candy hadn't come out with the Smooth timings, I wonder what sort of DD/Coil advances may have been developed?? I guess we'll never know. 

    Actually, the other non-Monoloop coil development that happened was Detech's SEF coils. 

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