dazza513 said:
Narrawa said:
dazza513 said:
Alot of youtube vids showing v3i users checking a target with a screen that shows individual target strength of the three frequencies, seems like they use this feature along side normal discrimination.
Strength of the closest target only....and a screw cap above a coin...which one is going to be the dominant strength.?
Anyone that owns a v3i can check this for themselves.
Just bury An aluminium screwcap 4" deep and then Do the same for a coin.
Notice 2 different frequencies. The coin on
The v3i should appear as 2.5 khz.
You can bury an array of different rings to....what do you think is going to happen.? Do all aussie coinage respond to only 2.5khz.?
Yes well all forms of discrimination can be fooled by multible targets and rings are all different sizes and metals, minelab fbs has a 2 dimentional discrimination display made possible by looking at a targets responce to different frequencies and then guessing it's ferrous content as well as the more traditional conductivity reading.
The whites v3i does show this information but its upto the operator to work it out.
Tell me how the 2 dimensional disc works in conjunction with ferrous targets larger than the coin it sits above.?? How does the field generated see through one target to ID the target below and give the accuracy spoken about.? Same gos for the v3i which is being misrepresented to the reader, making one think its the ideal detector for an age old problem....screw caps.?
Sorry to disappoint the reader, but its not going to happen....your going to dig screw caps from surface to depth, crushed, disfigured along with just as many good finds. The three colored bars you see when the detectors is used in the pin-point screen...measure signal strength of the target, and the frequency thats dominating it at that depth. If there is little between the frequencies, than the dominant frequency may change as you get closer to the target, or mineralization can have a major effect when at depths being used for relic hunting. Perhaps a small bit of iron off to the side can throw a spanner into the works also.?
In good clean parks/beach, the nice strait lines representing coins, will also represent screw caps, and not always are the frequencies going to be dominant around 2.5khz like suggested in this thread. In the link i put up, it clearly shows that a $2 coin is being reported on 7.5khz....and so to is the screw cap???
When nice strait lines come up out in the gold fields looking for gold, coins and relics.....you never get to excited...trust me. And as for the v3i not being very good at recovery speeds......its fully adjustable, and the speed in which it can report multiple targets in a very small sweep motion can and will cause eyebrow movement. Yet, there are simpler detectors able to do the same job.
The v3i is a top performer, just like the FBS/BBS machines are, i know i had my share of them, but in the end they didnt float my boat....and the v3i is long over due for a makeover, yet its hard to put down as you continue to tweak its tweakables. :lol:
When you look at buying a v3i, you look at your level of patience and ability to learn. This detector will teach you a lot about things that are not discussed in the manuals of other makes and models. From that you can gain a lot of valuable information you may have never heard of or thought you needed to know about detecting. Dont buy one thinking its going to ID all the nasty's that have plagued us for years, your going to be disappointed. In saying that, it can give you better guidance than many other makes and models.
