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Re: An interesting video display of ????

March 06, 2019 02:20PM
Quote
Monte
Targets that large and spaced so closely do make an interesting video. I did notice a couple of things, such as the audio tone after the coil passed to the left of the string of coins. Was that back-reading or ???? I also noticed that the coil was worked very close to the coins as well.
not sure what u were hearing on the audio. I might of been running it a hair to hot for inside the house. Like 25ft away from my monster wifi router lol. Also i am swinging 1" or 2" off the coins.


Quote
Monte
I have the 7 nickel-size brass Trade Tokens spaced along a 12" wooden ruler (paint stick but the same thing) and my Nokta CoRe and Relic, plus the Teknetics T2+, are the fastest response-and-recovery models I have in my Outfit. Using the 'OOR' on the CoRe and 5" DD's on the Relic and T2+, they can all produce 7 hits on the 7 tokens, but the T2+ does have the edge and can be swept faster and still respond well.
how did those machines fair on this test? I bet it was tuff even with the sniper coils, especially ones that overload to easily.


Quote
Monte
However, all of that occurs with the smaller coils when they are swept from side-to-side with the coil at a very close position, similar to what you swept those bigger coils at. The DD coils do have a bit of an advantage in this type of 'test' or 'demonstration' due to their overlapped Tx & Rx configuration which can, at times, be an advantage. But due to the overall shape of the EMF, it can actually be a fooler because the outer portion of the Transmit and Receive windings are still active and the entire EMF can be influenced by ground mineralization or any nearby metal object, even if/or it has been Discriminated.

Two other things to consider in these types of demonstrations is the particular detector's design functions, such as 'Overload.' Some models don't have much of an 'Overload' function and others are a little more reactive. Two examples are the Nokta CoRe and relic. Same manufacturer, but the CoRe has a stronger or more susceptible 'Overload' and can't be worked as close to targets as the Relic. Therefore, I can work my Relic closer to that sort of a series of closely-spaced sample coins w/o Overload and that gives the Relic an 'edge' in hitting on closely-spaced targets over the CoRe..
grinning smileyThose machines that overload to easily, quickly get sold. For the ghost town type sites i have found them to be completly worthless in the ghost town junk. Get to close to a bullet casing a 1" deep and they overload. At 4-5" off the ground to compensate for the erratic overload u lose all your separation ability and depth. Its just my opinion those type machines should be sent back to manufacturer. When i found my gold coin a few years back it was about 4 or 5 inches away from a large peice of cast iron. If i was using a machine that overloaded easy i never would've found the gold coin.


Quote
Monte
I haven't used the XP Deus enough to know what, if any, Overload function it has. That's just one of the reasons the T2+ hits on close-targets quicker because it doesn't have as sensitive an Overload effect as some other makes and models.
Xp actually has an adjustable over load feature, can set up how u like. I usually run mine at minimum setting, i want to be the one to decide if i dig or dont dig.


Quote
Monte
Back to DD coils. Even though I can sweep down the 7 Trade Tokens with the small 'OOR' or 5" DD's on my CoRe and Relic, that doesn't mean they have the only capability to do that, because both models also produce 7-out-of-7 hits using their 5X9½ DD mid-sized coils as well.

Different models and coils can provide different effects that can fool us at times, too. Such as using the 4" Concentric and 7" Concentric coils on my Teknetics Omega 8000. I used 6 or 7 US Quarters and placed them apart about ½ to ⅔ the width of my index finger. Again, working the search coil close to the targets, I can sweep those search coils back-and-forth as briskly as you were with that 9" coil or maybe even faster, and you'll hear quick, repetitive responses. Very impressive sounding.

But some sounds we hear can fool us. In this case, due to the coil size and configuration, the detector's design and close proximity of the coil, you'll hear a lot of repetitive sounds, but they are not all target response. It's mostly made up of the what you might call an 'echoing effect' of the Overload Audio, maybe even mixed with a bit of target response as well. If I did an audio/video, that performance could have folks lining up at the discontinued model sales store to try and buy their own Omega 8000 and Concentric coil. grinning smiley

So when we see videos like the one you did, we have to note the coil-to-target proximity. We also have to wonder about other settings used, factor in the search coil size and 'type,' and keep in mind detector designs can give us strengths and weaknesses and that might be a strong point of your XP Deus. Sometimes we don't know if the model has a n Overload function, and if so, if it is influencing the audio report.

Finally, we also have to remember that this is only a 'Test' of some performance capability. If that search coil was angled at maybe a 45° when swept over that same series of targets, the reactive portion of the EMF might not see anything but one single targets.

And a final consideration is 'practicality.' Your video is a good demonstration of potential performance with that model and that coil size and type, and with the coil swept directly down the line and very close to the targets. Not all the targets we find are on the surface and so closely positions in a row. Instead, they are typically 2" to 5" deep and out of sight, and if the coil was worked at a height of maybe 1" off the ground, which is should be, you're not going to see that type of response-and-recovery from coins at typical lost-coin depths.

All that said, it also points out one other result from YOUR indoor experiment and video. It ended up causing ME to wonder about things and I spent about 2½-3 hours last night checking out all my detectors and most often used coils on similar performance comparisons. Watching you video maybe four times, and doing more of my own testing.

Always learning, .. always learning ... and that makes this great hobby/sport so fun.thumbs up
well glad i could return the favor of getting u thinking out of the box like u always seem to make me do ha ha ha



Edited 2 time(s). Last edit at 03/06/2019 03:45PM by Monte.
Subject Author Views Posted

U Gotta SEE this!! XP 9" HF coil eye popping smiley speed test

Kickindirt 79 March 05, 2019 09:02PM

An interesting video display of ????

Monte 46 March 06, 2019 09:51AM

Re: An interesting video display of ????

Kickindirt 48 March 06, 2019 02:20PM

Back to you, Kickindirt.

Monte 51 March 06, 2019 05:27PM

Re: Back to you, Kickindirt.

Kickindirt 41 March 06, 2019 09:48PM



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