I have a question.

[dave5710]

If I use my Vision or V3 in coin and jewerly for example which allows VDI#s from 0 to 95. And I decide to block out #56 (zinc cents and screw caps). What percentage of depth lost should I expect?

And if I blocked out common pulltab numbers like 15 and 25 also, would that be chopping up my acceptable range too much and cause a huge drop in performance?

Thanks in advance.

Dave

 

[njgreg]

Why would you want to do that? Just don't dig those signals. Now you won't have to worry about it.

 

[Low-Boy/LCPM]

IT IS BEST TO JUST NOT DIG WHAT YOU DON'T WANT TO DIG BUT LET THE MACHINE DO ITS THING. MORE POWER LESS DISC. I FOUND ON MY XLT THAT THE MORE I DISC THE MORE THE TONE BREAKS UP. IF YOU ARE RELIC HUNTING YOU ALMOST DIG IT ALL AND JUST DISC OUT SOME NAILS. TO EACH HIS/HER OWN

 

[tab-nabit]

In most cases when I use the coin & jewelery program, I'll open up the -20 to 0 so running -20 to 95 I hear all in that range (I hope).
If I hit a target lets say a tab, I still want to hear it and then determine if I want to dig it or not depending on how the spot has been going. When I hit an area and get overwhelmed by tabs and tired of digging them, then I may not dig those hits, but still want to hear what I can under the coil.
Let the ears & eyeballs determine what to dig and not dig instead of null targets I guess. So I listen to all the tabs, bottle caps and screw caps etc. Dig what I want or go on to the next.
Maybe I got more used to using all metal in past years the most and hearing all I can within a range.

 

[dave5710]

Thanks guys, I appreciate your taking the time to answer.

Dave

 

[Larry (IL)]

Something else you might want to try Dave is to not discriminate, but assign a low tone, (iron) to the VDI's you want to ignore. That way you won't lose any depth at all and you will still hear the VDI's right above and below the ones you re-assigned a new tone. Your Zincolyns and tabs should sound broken up by the low tone and higher tones, yet gold rings and Indians should sound fairly true that might be right next to the ones you wanted to ignore. Sounds good in theory and I'm going to try that myself one of these days.

 

[TheMarshall]

If I use my Vision or V3 in coin and jewerly for example which allows VDI#s from 0 to 95. And I decide to block out #56 (zinc cents and screw caps). What percentage of depth lost should I expect?

And if I blocked out common pulltab numbers like 15 and 25 also, would that be chopping up my acceptable range too much and cause a huge drop in performance?

Thanks in advance.

Dave

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hi there Dave.

Depth loss?...................Depth loss on what?????

There is no depth loss due to rejecting the hearing / seeing of # 56.

Discrimination is about you choosing [size=medium]to not allow[/size] your V3 to inform you that it has detected a target with that value.

Second point, surely the items you've mentioned don't just have one singular VDI like 56? In the soil and surrounding matrix of many other 'things' the 'in-air' VDI is affected to the extent that it occupies a broader spectrum of numerical values.

Hope that helps to answer your query.............TheMarshall

 

[dave5710]

Thank you Larry, I have been resisting the urge to play with the expect menu until I really get a feel for this beast. I had thought about that. It was actually a big selling point for me. Never heard of the back to back ground

balance trick. So I guess I wasted a year using my DFX. No wonder 2008 was such a bad year for me.

Marshall, I've always heard that when you reject a VDI number or numbers you lose depth. The more you discriminate the more depth you lose.

I'm thinking that my machine might need to go back to the factory. I have tried Coins, Coins and Jewelry, and Deep Silver, none are programmed to allow negative VDI's yet I'm constantly getting low tones and negative numbers.

You make it sound like when I reject a VDI number it will no longer appear on my screen. That is not the case. I've read posts of people getting 15" in an air-test with a quarter. I can't get eight. Maybe I have highly mineralised air? It's getting very frustrating two months with this machine and it is not coming together.

Thanks anyway guys, I do appreciate it.

Dave

 

[Larry (IL)]

I'll take a look at it Dave if you are going to be around.