Polar Plot or Sizing

[dirtmaster]

Which analyzing do you prefer, Polar plot or the sizing screen?

 

[5900_XL-1]

Polar plot here.

 

[Larry (IL)]

I don't use either, neither of those screens adds any more info than I already know from the search and pinpoint screens.

I'm also a firm believer that WAY too many people over analyze a target and leave some very nice targets in the ground.

 

[wasp]

I have to agree with Larry.

 

[5900_XL-1]

Aren't these features what V3i owners paid the price to get? I asked on Whites site once about possible settings on my V3i to get it to emulate my M6 for a performance sanity check and Fox asked, "Why would anyone want to dumb down a V3i." My point in that post was obviously misconstrued. The point now about the analyze screens is similar. Do we over alalyze with these V3i machines? I surely do at times, more than I like to admit. Yet, when I see any signals in the polar chart pointing the three freqs pointing toward the left side of the chart?, I've never found a single coin. I've gotten great 83 VDI(quarter) signals before AND with yet the polar display pointed to the left. Nary was there a quarter with that display.

 

[DFXDon]

I agree with Larry But I paid good money for Whites V and I like to use Polar plot to confirm all the other reports. I owned the 40th Vision made and two V3i's after that I think Whites made one hell of a good machine and I use all the features that I can in retrieving my treasures

 

[Larry (IL)]

Do we over analyze with these V3i machines?

Some people do and some don't.

I have dug several targets in the time it took others trying to make up his mind if he should dig or not. If someone can only get down to dig so many times before you are done for the day, I understand, but most of us can find a target, dig it and move on the next one in far less time it would take to "analyze" it. Sure, you dig some junk but you also get surprised at times with what you thought was an "iffie" signal.

We metal detect to have fun, it boils down to what you call having fun. IMHO

 

[Rob (IL)]

I also don't use the polar plot or sizing. It is the same information we get without using them, just in a different format. I use two search screens but that is the beauty of the V3i. You can do it so many ways.

 

[daddyflea]

Both Sizing or Camel Humps and Polar Plot give the same information.

Forgive me but I still have no idea how the Camel Humps size anything.

If you look at the colors in the Sizing screen they will tell you which frequencies are responding the strongest. Sizing also lets me know if the coin is on edge.

Pin Point does the same but for me it is quicker to hit the switch and scan over it than to Pin Point. That being said Pin Point does seem to size reliably unless it is multiple signals.

 

[5900_XL-1]

I also don't use the polar plot or sizing. It is the same information we get without using them, just in a different format. I use two search screens but that is the beauty of the V3i. You can do it so many ways.

"I also don't use the polar plot or sizing. It is the same information we get without using them"

Coming from a career in microwave testing, the polar chart is far more informative as far as conductive on one half, and ferrous on the left side of the chart. What "same information" gets you that?

 

[Larry (IL)]

The VDI info Martin. Right of 0, or +VDI or Green VDI bars is conductance and Left of 0 or -VDI or Red VDI bars, is Ferrous. The larger the numbers on either, the higher the intensity. I thought you already knew this

 

[daddyflea]

When using Sizing the Colors tell you which Frequency is hitting harder therefore whether or not it is iron or copper

 

[5900_XL-1]

The VDI info Martin. Right of 0, or +VDI or Green VDI bars is conductance and Left of 0 or -VDI or Red VDI bars, is Ferrous. The larger the numbers on either, the higher the intensity. I thought you already knew this

I do understand the right/left conductance/ferrous hemispheres in polar. Yet, how it easily correlates to the sizing or a bar graph display is my point. A smith chart display would mean more to me, but we're not talking about a Smith chart. I would really have fun with this if I was still working in the industry,,,with the access to high dollar equipment. No brag, justr fact. Imagine testing a metal detector in a millitary spec'd Anechoic chamber, near and far field. The absorber cone size would as big a human being at kHz frequencies, and the whole test setup would definitely be an overkill of resources.

But I degress. When the polar chart displays all of the 3 frquencies grouping in the upper right quadrant is when I zoom in with any interest. Simple left-side as ferrous and right-side as conductive in polar is instantly easy for most any conductive metal detection IMO. Diggit Martin

 

[metalpopper]

I don't use either, neither of those screens adds any more info than I already know from [size=x-large]the search and pinpoint screens[/size].

I'm also a firm believer that WAY too many people over analyze a target and leave some very nice targets in the ground.

***********************************************************

Basically, I agree with Larry's concise statement.....PINPOINT, is the easiest to interpret.

There is one important condition which must accompany that advice.

The user MUST LEARN what is the LIMITED significance of the indications implied by the graphics.

The POLAR PLOT contains MORE visual data than Pin-Point, but requires the viewer to be more technically savvy,

to translate it into relevant factors related to the target.

(I am presently working on the matter, in the hope that a viable solution can be resolved which then

would form part of the menu of tools offered to the detectorist, as an AID to assist in the decision as to

whether one should dig that target.)

.

For those who are not 'technically' minded, and have no interest in

pursuing the simple science of 'cause and effects' involved, then Larry's opinion is sufficient.

One thing is sure, and as Larry advised; DIG IT AND LEARN BY THE EXPERIENCE.

If after doing so, things don't appear to make sense, then if you wish, we will

always be happy to try and explain the reasons why it is not a simply process.....Matt.

P.S.

The fact is, that their are at least, THREE VARIABLES involved; which all interact

to produce a target's graphical profile as seen in the 'pin-pointing' screen.

 

[Rob (IL)]

"The POLAR PLOT contains MORE visual data than Pin-Point, but requires the viewer to be more technically savvy, to translate it into relevant factors related to the target".

Those of us that don't use the anaysis screens start in the Spectragraph screen and then go to the pinpoint. We are saying, there is no need in our opinion to go to the anaylsis screens for more information.

 

[spinman1025]

Can I hunt in single frequency mode (2.5) and pull the trigger to analyze in all 3 frequencies with my v3i ?

 

[Rob (IL)]

No you can't. If you select a single frequency mode, search, pinpoint and analysis will all be single mode.

 

[spinman1025]

Thanks Rob,
I didn't think so but wasn't sure. I guess you can set 2 programs up and switch back and forth.

 

[Rob (IL)]

Not fully, set up two different programs and you will see that some options will be the same in both. Experiment and you will see. For instance if you could have a different gain in both you would have to G/B each time you pulled the trigger. If you set RX to 9 in one program it will set 9 in the other. However, filters could be different in each program.

 

[Rob in (Ca)]

The polar plot is used to ID Iron ......Nothing more.....The V3I has such a incredible discrimination features for Iron .....( stock programs) The polar Plot is kinda waste of time on the V3I.... wish some of The other Detectors out there had a polar plot.