Steve Herschbach

The discrimination capability is not “built into” the GPZ7000. It’s just that unlike PI there is nothing in the ZVT technology that precludes discrimination from being added. As people who know this industry would say “don’t hold your breath” but someday. Don’t go expecting discrimination via an update either. More like how much do you think a GPZ 8000 with disc would sell for?

Yeah, something seems wrong with that. Though some dealers out of defensiveness may be quoting far out dates just so as to not get caught short. Underpromise and overdeliver....

I think most of us think the same thing which is why I undertook the experiment. That was a few months ago and I don’t remember anything being especially deep. They were probably all 6” or less. The only way to learn really is to experiment. It does not take any guts because it’s pretty risk free. Nothing says you can’t go back and hunt the same place again with different settings so just give it a go and see what happens. The horseshoe button makes it easy to set up a pattern with almost every thing blocked. You can flip back and forth between extreme disc settings and wide open and compare signals on targets found in the field before digging.

Thanks for the kind words! Most targets produce multiple target id numbers. That’s why target id numbers jump around. When you block any part of the signal, and one of those jumpy numbers, you reduce the target signal strength. You might even miss a target completely. We usually get one chance of detecting a target. That one pass. Let’s say you have a nickel that might read 12 or 13 depending on how you sweep it. You have 12 blocked and 13 open. The nickel on the first and only pass reads 12 so you miss it. I normally hunt 50 tones wide open for this reason. However, there is no right and wrong, just different methods depending on the goal. I have also experimented with aggressive discrimination and been happy with the results. If a target hits hard in the region I have left open the depth loss I feel is minimal or non-existent. The weaker/jumpier the target, the more chance it is producing multiple target id numbers or skewed numbers, the more chance it could fall into a region I have rejected and be either weaker or missed. Target id on any detector can vary due to mineralization and nearby trash pulling numbers one way or the other. Again, no right or wrong, just a judgement call on where to draw the line and what works best for you personally. Some like to cherry pick, some hate the thought of missing anything at all. Here is a hunt where I blocked everything but 12 - 13 - 14.

Welcome to the forum! Here is a recent thread on the subject.... plus some videos that might help... https://youtu.be/_Mlu1zwsdpo

So did everyone get their detector? Anyone still waiting, and how long have you been waiting?

We probably went on too long as we wandered off subject. Anything past an hour is really too much, but time flies when yakking about detecting!

I do my absolute best to be an invisible detectorist. Oddball hours, rainy days, and when I see people go the other way or leave. I suppose I might be missing an encounter that has some positive aspect but in general I think it best for the detecting community that we are seen by as few people as possible. Somebody catching me and chatting me up is my clue it’s time to go somewhere else.

The Impact is a great machine but the Multi Kruzer would be more my style I think. Looks like a great all around detector. Thanks for the report Terry!

The photo link was broken and I could not see a way to fix it so needs to be posted again.

My hopes just dropped a notch that this machine would be a machine for both beach and prospecting uses. According to Rick on this Dankowski thread: "Pulse delay and SAT are fully variable - the accept/reject is likewise so - it is a form of GB, but optimized for the beach - not a GB to cope with goldfield minerals." To which I responded: "If this baby can't ground balance then it better get tested in Hawaii. I did ok with the Surf PI in Hawaii but the problem always was false signals bouncing over the bottom or going over basalt cobbles due to the inability to ground balance. A waterproof TDI was my desire from day one, but never happened. The Infinium worked but had issues of its own with false signals in saltwater. The ATX fixed that and is operationally the best PI I have used in Hawaii for ignoring both the saltwater and the intense mineralization. The ATX ergonomics however are the worst ever. 7us and no ground balance except for a limited range to enable ferrous id sounds like the machine may love those Hawaii hot rocks. The pulse delay being variable may help if the range is wide enough but of course low delay times to ignore the hot rocks will send small gold capability out the door also. Still, I sold my ATX in anticipation of this detector and am cautiously optimistic. The market is still wide open for a waterproof PI that performs better than a TDI SL but with ergonomics better than an ATX. Two pretty low bars in my opinion."

Listen to "Steve Herschbeck" on Spreaker. but it is Steve Herschbach

Can’t do it on a single swing. Identifying a square tab takes multiple swings rotating around it to get an audio handle on the fact you are dealing with a square edged rectangular object versus a round object. Best done at higher recovery speeds in 50 tones. Even then some will trick you.

I keep reading comments by people who think the ergonomics of the Equinox are just horrible. Coming from my 7 lb harnessed GPZ 7000 the commentary is interesting. People do know the Equinox is a waterproof detector, right? My challenge? Please list all the waterproof metal detectors you think have better ergonomics out of the box than an Equinox. Current waterproof detectors from major manufacturers listed by weight. Click for larger version...

I can’t say I have used my Gold Racer much the last year but I won’t let it go. It was a unique machine at the time and the 56khz design with discrimination options appeals to me. One thing I am curious about in this day and age of the Deus high frequency coils is how the Gold Racer compares to a Deus HF coil for sniffing non-ferrous relics, especially when running the concentric coil on the Gold Racer. Great post Lanny, thanks!

Nice mini coin collection right there!

Great post! This are just comments not rules. If you dig solid 13 readings you will get nickels plus some trash. That does not mean all nickels read solid 13. Newer ones tend to, older ones tend to 12, and outliers can read higher and lower. Mixed iron tones can be a clue, that’s all. And solid repeatable tones from 90 degrees is a cherry picking tip - many items only read good one way. Metal detecting is a game of true nuance when making dig or no dig decisions, and anytime an item is left in the ground you will never know if you passed on trash - or left a good item behind. Even digging all non-ferrous misses non-ferrous items that are reading as ferrous, and that happens a lot. Ultimately we each have to learn our detectors and our ground / targets and do the best we can. The tips and tricks help but only when applied with experience and judgement, not as hard and fast rules. Anyway GB_Amateur thanks for your detailed and thoughtful posts. Much appreciated!

You guys do know AMD processors and a host of other types of high tech products are made in Malaysia, right? They are not working in mud huts. U.S. owned Plexus facility in Malaysia where many Minelab products are made.

GOLD AND SILVER IN OREGON by Howard C. Brooks and Len Ramp 1968 Bulletin 61 STATE OF OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES Mining in Idaho 1985 Idaho State Historical Society Gold Camps & Silver Cities by Merle W. Wells 1983 Bulletin 22 Idaho Department of Lands Bureau of Mines and Geology I would operate under the assumption that all mining areas are mineralized soil areas.

Crawfords Metal Detectors posted April 19 Do you want to get the best from your Equinox? Then join our masterclass! The Day: Join us for a day of tutorial and hands on learning with the experts. The venue: We have secured a small undetected field in North Lincolnshire in an area renowned for Roman and medieval finds, including one famous medieval artefact! The Date: Saturday 26th May Who can attend: Anyone with an Equinox can attend. Places are limited to 50 so tickets will be sold on a first come first served basis. The cost is £10 per person (as the landowner has requested a donation to the local church). Refreshments etc will be provided. Tickets will be available now. Call 01724 845608 or on our website

I am not going to do anything to protect mine. The line below “Constructed from special abrasion resistant materials (won’t wear through like other pinpointers)” is good enough for me!

Political commentary deleted - please resist the urge. Thank you for your cooperation!

How cool is that! The ring I wear these days is one I found on Kauai years ago. Just a plain 14K band but it fits well!

You can definitely find rings in the nickel range. The reality is the nickel range is a weak spot for rings with most women’s rings falling in the foil area below where a nickel reads. Conversely, most men’s rings show up in the pull tab area above where nickels read. Anyone who wants rings has to purposefully focus on the two most trash laden areas of the target id scale! Ring Target ID Numbers

The rule is simple for all metal detecting - dig everything. Except time and physical limitations do not always allow this. Getting to know your detector and what targets are likely to produce certain target id numbers can be very beneficial in trashy areas. Even then, when in doubt, dig it out! More Target ID Information Including Jewelry