I wrote that if the plot said it wasn't a good target it wasn't. If it says it's bad I can pass it. The plot couldn't tell ME if it was a good target only if it was a bad target. A plot that is circular is definitely bad. A tab will give a good pattern just like a coin. It's not going to find you gold or rings but what will? Rob
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Polar Plot
- Thread starter Rob (IL)
- Start date
mgtmadness
Member
rcasio44 said:
your ring and nickel plot pics looks like it says ring size 7 and nickel right on the screen display.
I was like holy @#$% it can tell what size (7) and if it is a gold ring?? It looks like it says on the screen display Size 7 Gold Ring. OMG how awesome that would be!
The coke can tab looks slightly different.(blue line pointing more towards the .4 in the inch measurement)
The ring and nickel look like the line points more towards the 1. in the inch measurement.
Larry (IL)
Well-known member
That is a welcome "tweak" in the upgrade Dave.
I think this screen is better than the analysis screen, BUT it is just a tool like the analysis screen. It will be affected by depth, ground, and near by targets. It is showing information you are already getting from the VDI, and spectragraph just in a different way. I will be used for trashy shallower targets, I believe. Some people will use it to ID crimped bottle caps. I just got back to Illinois but I don't know if it will get good readings to 6" here. If you analyze you will probably like it, if you don't you won't. If you are a deep hunter???? I'm not trying to sell the plot just showing some examples. Rob
It show's the signal response for the active signal. A bottle cap and some other iron objects will show the non-linear pattern (scrolly pattern). Coins and other targets (pulltabs and foil unfortunately) will still show the linear lines (until ground effects overwhelm the signal).
The Beep Goes On
New member
rcasio44 said:
Hard work
I like the feature. If it can contain and present the garbage as a tangled mass instead of giving you an Analyze of flat lines or some other wierd effect that makes you wonder if it's you, the target or the machine that is having a problem, then I'm for it. This different presentation of the same info might have been chosen since you can give the radius of a polar coordinate a maximum length whereas the wave pattern (Analyze) seemed to be unbounded on the left and right and could present ambiguous results.
Just a follow up question. The V3i still has the analyze screen doesn't it? I just want to make sure this is in addition to the analyze screen from before, and not instead of. I like looking at the referrence to target size and would not want to give that up. thanks in advance.
JamesBondaka
Active member
I would disagree....I can tell the difference most of the time between pull tabs and jewelry...sometimes its a bit tougher on some targets but if you use your 3x3 in sucession....you can pretty much figure out what is what. The analyze screen is the best one for cluing what is junk and what is coins or possible jewelry. I get fooled from time to time but mostly I can tell whats in the ground before I dig it!
Skills vary James yours are just better than mine. Jewelry for me is a surprise. Have you noticed the posts about the analysis screen lately? There aren't many. We had many pictures of various screens posted trying to find an answer for the secret of gold and silver. People gave up. The polar plot is just another representation of the same information. It is just another tool. If you can't tell gold from a tab with the analysis screen you won't find it with polar plot.
if you use your 3x3 in sucession....you can pretty much figure out what is what. Please help us out by explaining what you mean by your 3x3 method. We are always looking for help, that's what the forum is about. I'm not fooling with you, I am interested. Rob
if you use your 3x3 in sucession....you can pretty much figure out what is what. Please help us out by explaining what you mean by your 3x3 method. We are always looking for help, that's what the forum is about. I'm not fooling with you, I am interested. Rob
Mike Hillis
Well-known member
As an inland jewelry hunter I find that the jewelry finds take care of themselves as long as you are hunting in the right locations and recovering the right target ranges. I'm into this for recreational fun. The V3i with the new graphs and features look like they would add more to the fun aspect. Maybe they will be a aid in some situations or maybe not, but for sure will make the guessing game a little more fun. I see some difference in the plots that might could be utilized. I'll have to wait until mine gets here and and use it for myself to know for sure.
Does the plot change when normalization is turned off and the spread can be increased for 22hKz?
Is the plot stuck on the normalized readout?
If using single frequency mode, do I just see one frequency plot?
Does the plot characteristics change based upon the coil being used?
Some of my questions. Have a lot of other questions but I'll wait and answer them myself.
Mike
Does the plot change when normalization is turned off and the spread can be increased for 22hKz?
Is the plot stuck on the normalized readout?
If using single frequency mode, do I just see one frequency plot?
Does the plot characteristics change based upon the coil being used?
Some of my questions. Have a lot of other questions but I'll wait and answer them myself.
Mike
If using single frequency mode, do I just see one frequency plot? Yes
Does the plot characteristics change based upon the coil being used? Not that I could see.
Normalization is only on VDI calculations and as such shows up on the VDI display and the spectragraph which plots VDIs. The polar plot is not plotting VDI, but x and y . X is the horizontal axis, y is the vertical. So there is no normalization on it, other than scaling to make the size (magnitudes) match the expected frequency signal strengths. Short answer, the polar plot is not normalized whether or not normalization is on or off. Just the VDI calculations. Rob
Does the plot characteristics change based upon the coil being used? Not that I could see.
Normalization is only on VDI calculations and as such shows up on the VDI display and the spectragraph which plots VDIs. The polar plot is not plotting VDI, but x and y . X is the horizontal axis, y is the vertical. So there is no normalization on it, other than scaling to make the size (magnitudes) match the expected frequency signal strengths. Short answer, the polar plot is not normalized whether or not normalization is on or off. Just the VDI calculations. Rob
JamesBondaka
Active member
Rob,
I have just been back in the metal detecting realm 6-7 months since having a detector 30 years ago when I was a kid. I have learned a lot and have a lot more to learn. I have read a lot on here,which is very helpful. I have just got my v3i update. I don't know all the aspects of the update nor do I know all the items of the standard v3. Rest assured, I will try to know this detector inside and out, as I think it has great potential.
I am thinking there is something different with our locations and/or setting etc. For me the v3(i) works very well, most of the time. I thought it was just a good detector but nothing outstanding...then I figured out the analyze screen. It was enlightening to know what was in the ground, again most of the time. That is the single most important feature that makes the v3(i) outstanding to me. I have sold most of my other detectors because of it. I have another posting labeled, 'amazing v3". It will give you more info.
The 3x3 in succession, I make not have spoken the correct terminology....is what I use,,,most of the time. You start in normal detect mode....when you get 3 green bars(most of the time)it looks promising. Second, I switch to pinpoint screen....it naturally tells depth and highest metal content....which is a clue. Third, I switch to analyze screen.....if the other 2 screens tell me what I want to hear(see) .and the analyze screen has good or close to good info(humps)then I can pretty much figure out what it is or conversely...what it is not. The analyze screen is not exact because of different scenarios, values, ground conditions and other variables associated with the target. If there's other metal close to the desired target it can be off. Their are other factors that could be involved also. As has been said many times, by many people....know your detector! Because the wave is analyzing the area and not necessarily one particular item, the wave can be altered because of other items in the ground and the key is to recognize that. It is not a "crystal ball", but to me is the best thing I have seen out there for the price.
I would tend to agree with you about the "plot", at this time...I do think its probably the same info, just another way of displaying it. I hope it will have a different "degree', of information to further analyze targets. I will post any additional info I come up with about that.
I have just been back in the metal detecting realm 6-7 months since having a detector 30 years ago when I was a kid. I have learned a lot and have a lot more to learn. I have read a lot on here,which is very helpful. I have just got my v3i update. I don't know all the aspects of the update nor do I know all the items of the standard v3. Rest assured, I will try to know this detector inside and out, as I think it has great potential.
I am thinking there is something different with our locations and/or setting etc. For me the v3(i) works very well, most of the time. I thought it was just a good detector but nothing outstanding...then I figured out the analyze screen. It was enlightening to know what was in the ground, again most of the time. That is the single most important feature that makes the v3(i) outstanding to me. I have sold most of my other detectors because of it. I have another posting labeled, 'amazing v3". It will give you more info.
The 3x3 in succession, I make not have spoken the correct terminology....is what I use,,,most of the time. You start in normal detect mode....when you get 3 green bars(most of the time)it looks promising. Second, I switch to pinpoint screen....it naturally tells depth and highest metal content....which is a clue. Third, I switch to analyze screen.....if the other 2 screens tell me what I want to hear(see) .and the analyze screen has good or close to good info(humps)then I can pretty much figure out what it is or conversely...what it is not. The analyze screen is not exact because of different scenarios, values, ground conditions and other variables associated with the target. If there's other metal close to the desired target it can be off. Their are other factors that could be involved also. As has been said many times, by many people....know your detector! Because the wave is analyzing the area and not necessarily one particular item, the wave can be altered because of other items in the ground and the key is to recognize that. It is not a "crystal ball", but to me is the best thing I have seen out there for the price.
I would tend to agree with you about the "plot", at this time...I do think its probably the same info, just another way of displaying it. I hope it will have a different "degree', of information to further analyze targets. I will post any additional info I come up with about that.
I think that still... the most promising way to better ID targets is switching to non-normalized VDI for whatever range applies to the target in question. I have not progressed to this yet but I see the potential for enhanced target ID. I really wish I could search in 3 frequency normalized, then set analize and pinpoint to non-normalized single frequency. I would set pinpoint to either 2.5 or 22.5 and analize to the other... both non-normalized. Imagine the added information that could be had with the push or pull of the trigger. I know I can get there with a few clicks and I plan to progress to that (i'm still learning the basics)... it sure would be a cool feature for the next upgrage... IMO.
My next step is tomorrow... ordering a 6x8 SEF. I borrowed one Thursday and it is really, really good. Deep and stable. I dug a small piece of lead at 7" and it was in no way "iffy".
J
My next step is tomorrow... ordering a 6x8 SEF. I borrowed one Thursday and it is really, really good. Deep and stable. I dug a small piece of lead at 7" and it was in no way "iffy".
J