Jump to content

Steve Herschbach

  • Content Count

  • Joined

  • Days Won


 Content Type 


Detector Prospector Magazine

Detector Database



Everything posted by Steve Herschbach

  1. Simon, I dare say you found something rarer than any coin these days... a place that for some reason has never been detected for coins! That is quite literally what it used to be like in “the good old days” when any park or sports field gave up handfuls of good coins in short order! Good on you, great finds!!
  2. Some people believe the pre-DST models are hotter. The main issue is that in some urban areas pre-DST units are unusable. You can supposedly disable DST but on the unit I had it seemed to make no difference - the unit stayed the same DST on or off. There is a lot to like about the T2/F75 platform. Not least being that on my arm at least it's the best feeling detector I have ever swung. There are lighter units like the Deus but their nose-heavy nature offsets the lack of weight. The T2/F75 perfect balance has less wrist torque and less arm strain in the long run even though it weighs more. It's near impossible to get proper balance in a detector that weighs less than 3.5 lbs as you have to have the underarm counterweight. You will never see specs like this in any other detector manual: Weight: 3.5 pounds (1.6 kg) with alkaline batteries installed. Static Balance: force in vertical plane normal to elbow 0.47 pounds (0.22 kg). Varies with adjustment and user’s stance and arm/hand physiology. Dynamic Balance: axial moment, 0.29 foot-pounds (0.39 newton-meters). Varies with adjustment and user’s stance and arm/hand physiology. Sweep Effort: lateral moment 5.2 foot-pounds (7.1 newton-meters).
  3. The T2+ was not a new model and as such was deceptive from a marketing standpoint in my opinion. It and the F75+ are the same as the prior Ltd models... the only change is the accessories offered with the units. By changing the name they strongly implied without directly saying so that the “plus” models are new models with “plus” functionality somewhere when in fact all they have is a decal change. Relabeling taken to the extreme. It left a very bad taste in my mouth regarding First Texas marketing practices, from a company that plays high and mighty as regards other companies marketing practices.
  4. The 600 is a great unit and for many the best value by far. I very often just use the presets with a small tweak to sensitivity and therefore am probably going to get a 600 for use as my dedicated saltwater unit plus general backup machine.
  5. Most detectors have simplified control sets that combine several controls into one or leave other controls out entirely. The White’s V3i offers more granular control of the detector at every level possible and so it’s manuals are a lesson in how detectors work. One main reason I own a V3i is because we will never see another detector again with this level of control. From the White’s V3i Advanced User Manual: Sensitivity Once you select a basic program you may need to adjust the sensitivity settings. Most of the V3i programs are set up with nominal sensitivities, but some (notably the ‘Pro’ programs) are set up a little hotter. Most users believe sensitivity should be run as high as possible. In some cases this is true, but if you find the detector is noisy and falses a lot you probably need to turn it down. There are three primary sensitivity settings, plus a boost mode. Rx Gain Rx Gain (sometimes called preamp gain) sets the gain of the receiver’s input amplifier. In most cases, you want to set this as high as possible and still maintain stable operation. Three things can limit the maximum gain setting. The first is external noise, such as electro-magnetic interference (EMI) including 50/ 60Hz mains and RF. EMI typically shows up as erratic operation and noisy audio. Secondly, in highly mineralized ground excessive gain can cause the input amplifier to overload or operate at close to overload due to the large ground signal, limiting the available range for target detection. Finally, the quality of the loop null can also push the input amplifier toward overload. White’s V-compatible loops are designed to minimize null limitations, but third-party loops typically have wide variances in the quality of the null which can require a lower Rx Gain. EMI affects the lower end of the signal range, which more directly impacts target sensitivity. Both ground signal and loop null affect the upper end of the signal response range, which usually results in a quicker overload. Ground signal and loop null affect target sensitivity only so far as the Rx Gain must be reduced to prevent overload. All-Metal Sensitivity All-Metal Sensitivity (sometimes called DC sensitivity) determines the responsiveness of the all-metal channel. Only target signals above the threshold cause an all-metal response, and a higher all-metal sensitivity setting will increase the all-metal audio response rate to targets. This setting affects all-metal modes including pinpoint and mixed-mode, but does not affect normal discrimination mode. Setting this too high will make the all-metal audio chatter. Discrimination Sensitivity Discrimination Sensitivity (sometimes called AC sensitivity) determines the responsiveness of the discrimination channel. This is a threshold level, so only target signals above the threshold cause a discrimination response. Setting this too high will cause noise and falsing in the discrimination audio. Tx Boost Tx Boost is transmit boost. When enabled, it triples the transmit voltage applied to the loop (from 10V to 30V) and increases the depth. Using this feature has two major drawbacks: it can overload some loops (reduce the Rx Gain), and it quickly drains the battery. There are two common uses for Tx Boost. One is when hunting an unusually “clean” area where most targets have been cleaned out, and only deep targets remain. TX Boost typically gives about a 1” depth increase. The other is when EMI noise is severe. Reducing the Rx Gain reduces EMI but also reduces target signal strength. Applying Tx Boost increases target signal strength but does not increase EMI noise, so Tx Boost can be used to improve signal-to-noise.
  6. Sensitivity controls are almost always simply audio amplification controls on the receiving RX end. TX sensitivity/boost is a separate control. Adding more power can hurt as much as help so it is not a magic solution. However, the main difference I am seeing in modern detector models is they are running at higher transmit power levels out of the box than older models as manufacturers squeeze all the performance possible out of units. Detectors in general now are more powerful but less stable, more noisy than older units.
  7. From a technical perspective a metal detector in perfect tune detecting no targets is in a state of electrical balance and uses no power. These are not antennas transmitting power but more like an alternator circuit creating a magnetic field. A conductive item has current induced into it, causing a power drain. The ground itself is a huge target so simply engaging the coil with the ground uses power, and larger coils “see” more ground. So it is the engagement with a detectable target of some sort that uses the power, not so much the coil by itself. A lot of the battery power actually goes to creating an amplified audio signal which is why headphone use can dramatically save battery power. My first post is more the view from a layman user perspective, the above closer to reality, but I admit to not being a detector designer or tech wizard, so somebody else can probably get closer to the true correct technical aspects. Coil Basics by Carl Moreland
  8. I guess it depends what you mean by use more power. Certainly resistance varies with different coils. In general the detector puts out a regulated amount of power, and a larger coil disperses that power into a larger but weaker detection field. Small coils pump the same power into a more concentrated, more powerful electromagnetic field. This is why small coils react better to small targets, and why it takes larger gold to set large coils off, but at greater depths. Some detectors allow you to change the transmit power via a control, often labeled TX power. Others may vary that setting via programs or “timings”. Or were you simply asking whether different coils can drain the battery faster? Yes. Though most people will never notice the difference. Coil Basics by Carl Moreland
  9. I suspect Busho has more experience with ground tracking that you do Chase and has tried all the options suggested. As he has stated multiple times he is not a newbie. He has offered results and a solution that works for him where he is and that other Oz operators will want to pay attention to. Oz soils in general have a different composition than U.S. soils and so comparing results across continents is somewhat like western U.S. operators comparing recovery speed issues to Florida users results. Apples and oranges and will often confuse more than enlighten. I do know ground balancing multiple frequencies presents different issues than ground balancing a single frequency and this may be the root of the problem, especially as regards Oz soils. The Multi-IQ tracking may be deficient by Oz standards... that’s my take away from Busho’s post. Curious Busho... have you tried tracking in single frequency modes? I am only now starting to realize how many people who view posts on the internet tend to grab onto settings of any sort and apply the knowledge as if it’s global in nature when in fact all detector tuning issues are local and differ with the operator and location. A quandary I will have to ponder before posting personal settings going forward.
  10. No worries, that’s my job, to remember every post made in the last five years Welcome to the forum! If you have not done it yet check out the Minelab Equinox Essential Information pinned at the top of this forum. This subject is one of those listed among many.
  11. Very nice! My wife is from Montana so I had to show that one off to her. Beautiful country around Helena, definitely on my to-do list to get up there one of these days to look for gold and sapphires. Thanks for posting!
  12. It was covered in detail here some time ago. Bottom line as phrunt said you are just fine.
  13. I had a Vaquero with a Cleansweep coil at one point. Nice little detector, and I even found some gold nuggets with it. Good luck with yours!
  14. Yes, many people here including myself have used it. One of the owner/operators, Clay Diggings (Barry) is a very helpful poster in these forums. Here are his recent posts.
  15. until
    From https://nuggetshooter.ipbhost.com/topic/34198-fall-outing-2019/: “Hi All, We will be doing the fall outing in the weekend of November 15-17 at Little San Domingo. There will be some cool things going on and Minelab will also be there with some cool stuff to let you all test drive. More details as they come in.” See the thread above for the latest details and more information.
  16. For those who skipped the first post this is an Equinox with the 6x10 coil from the Gold Monster. No, it won’t function, but a coil like this would help take the Equinox up a notch as far as gold nugget detecting. Others have noted a desire for an open spoke type style as preferable. I’m fine with either. I just wanted to revive this thread to say I’m still hoping and dreaming......
  17. The Excalibur will almost never identify ferrous as non-ferrous, but the extreme bias against ferrous comes at a cost. It will null over ferrous and since it is a slow machine masking is its main Achilles heel. That is not to say you can’t hunt ferrous with it and make good finds. The key is to hunt with Disc 1 very slow and from multiple directions. The Excalibur is basically a Minelab Sovereign in an underwater box so tips for the Sov generally apply to the Excalibur also. Excalibur Relic Hunting Tips
  18. Finds are nothing without a great story... and that’s a great story and photos!
  19. One with an on/off button that only finds good stuff would suit me
  20. Previous thread with links to even more previous threads... Best Methods For Cleaning Unrecognizable Coins
  21. Your post hit the nail on the head Lackey. The “more depth” hook has been a red herring for ages. Single frequency detectors get no more depth now than my old Compass Gold Scanner Pro did back in the 80s and that’s a fact. I’ve seen a lot of neat features and ease of use added since then, but more depth in single frequency VLF... not really. People who genuinely need real depth do not use VLF detectors, they use a high power PI or a GPZ. Single frequency VLF is old, mature tech and any company with even minor engineering chops can make a good one. The ONLY thing that can be offered in single frequency VLF now is VALUE in the form of better packaging and lower prices. The high end future belongs to multifrequency/hybrid detectors now. And with that I really am getting off my soapbox!
  22. I would change that to target id may be wrong. One of the most potent weapons in the Equinox tool box is the target id, versus the many VLF nugget detectors and all PI detectors that have no such tool available. Digging everything sounds great until you get into old campsites, hydraulic pits, and miles of old tailing piles full of junk. The fact is the target id numbers are accurate more often than not on “normal” size targets. Certainly, the weaker the gold signal and the more mineralized the ground, the less reliable the target id number. It’s not a size thing, it’s a signal strength thing. A deep larger nugget that is barely reading in bad ground is every bit as likely to return a ferrous result as a tiny nugget near surface in the same ground. If you can dig everything, by all means do it. Especially when chasing the tiniest gold bits. But if you have two hours in an old campsite littered with trash sitting in the middle of gold bearing ground, you had better learn to use and trust the target id system. With use you can tell when it’s a good reading or not; it basically boils down to how strong the signal is and repeatability. When in doubt, dig it out! In some areas particular pesky hot rocks with give a consistent target id number that can be used playing the odds. You can detect nuggets in a location littered with .22 shell casings. There are many locations where the reality of limited time and massive numbers of unwanted signals where target id is your friend and secret weapon against those swinging a machine with no such capability. Will using target id increase the risk of a missed nugget? Yes. Using target id in parks and beaches will also result in good targets being missed. The feature for time limited individuals or people whose backs are not made of spring steel can be invaluable however. Rather than avoid it I recommend becoming expert in its use. That’s best done in a dig it all scenario by observing the target id before every dig and predicting the target each time to develop your skill for the time when you really need to rely on it. Thread added to Equinox Essentials as More Equinox Gold Prospecting Tips
  • Create New...