2nd hunt with Nokta Impact.. TID's making me crazy..lol..

[martygene]

I can't figure what is coming in on TID with this machine. I used DI4, 14K, disc 3, lowered gain to 60, tracking on, and dimes were coming in at around 78. Then to check I switched to deep, 14K, disc 10, I could keep gain at 70 just to check and dimes would come in at 86 or so. why the disparity I wonder? wouldn't 14K TID's be the same? I did dig a lot of junk just to see what was what but I still don't have much of an idea what is what with the TID's of this machine. I did get a few keepers, luckily. Any ideas on how to figure this out? anyone else have this problem?
thanks.

 

[iskirkra]

martygene,
The impact uses 2 different scales for id's. One scale is for modes (gen, gend, sta, stad, deep, vlx1 and vlx2), these modes have an expanded iron range. The other scale is for modes (Di2, Di3, Di4, Di99 and COG). A dime using Di4 will be around 78 and a dime using deep will be around 85. I have attached a cheat sheet that I use, it might be helpful.

Good Luck, Randy

 

[squirrel1]

Also see this link of manual.
Page 11 dealing with ID setting.

http://noktadetectors.com/downloads/Impact_User_Manual_KKIM240417EN.PDF

 

[martygene]

Thanks Randy this chart is what I need. It explains a lot. I think now that I see it it is in the back of the Impact manual. I looked at it and I forgot that it was there so thanks for the heads up.

martygene,
The impact uses 2 different scales for id's. One scale is for modes (gen, gend, sta, stad, deep, vlx1 and vlx2), these modes have an expanded iron range. The other scale is for modes (Di2, Di3, Di4, Di99 and COG). A dime using Di4 will be around 78 and a dime using deep will be around 85. I have attached a cheat sheet that I use, it might be helpful.

Good Luck, Randy

 

[iskirkra]

No problem, I printed one out and keep it in my pocket, as forgetful as I am, I need all the help I can get

 

[D&P-OR]

Man---how's a guy gonna remember all those #'s for the same target??----Doesn't that detector have a "normalization" feature on it?------Knowing me, I would forget where I put that printed out list Randy! ----------Del

No problem, I printed one out and keep it in my pocket, as forgetful as I am, I need all the help I can get

 

[squirrel1]

Man---how's a guy gonna remember all those #'s for the same target??----Doesn't that detector have a "normalization" feature on it?------Knowing me, I would forget where I put that printed out list Randy! ----------Del

No problem, I printed one out and keep it in my pocket, as forgetful as I am, I need all the help I can get

It sure does.
But you will still have multiple groups of reported ID depending on which mode(s) are selected.

 

[iskirkra]

If you have normalization turned on, you only have to remember 2 sets of numbers (the 14khz list). It not to bad really, quarters and half dollars are about the same, the difference is with pennies, nickels and dimes. Good to hear from you Del, My wife thinks I have a really bad memory but you can use that to your advantage, like when she says, "I thought you were going to be home 2 hours ago"

 

[martygene]

i'll be printing one out too .. l'll need it for quite a while..lol... my buddy has one of those quarter back arm note holder thingies so he has all the tid's right there on his wrist. i might just have to do that too.

No problem, I printed one out and keep it in my pocket, as forgetful as I am, I need all the help I can get

 

[shelton7522]

Try to use headphones only and first to listen second, look on TID.... in opposite direction this doesn't work at all

 

[Mega]

Audio is far more reliable and stable than what any 'TID' is,i certainly would never make a dig or no dig decision on what solely a screen tells me.Although i do own a fair few machines that do have TID screen i very rarely use them,even run my Deus with the controller in my pocket.Audio is king and always will be especially at depth,screens can get very un-reliable the deeper you go but audio still gives a decent reliable signal especially when using decent headphones,then of course the very last indicator of a very deep target is the threshold audio.

On deep pasture or after deep ploughing its the deep feint whispers that can and will produce those highly desirable targets that you will miss if just relying on what a screen tells you.

 

[Des D]

"That IS the BIG problem when working with selectable frequency machines!
I've been dealing with the same issue working the 'Rutus Alter 71, and that's got 71 selectable frequencies!
But it has [Real ID] or Normalisation to help. Otherwise, 'it calculates' TID's in either 6 or 12kHz
So targets can register 89 in one frequency or 111 in another for the same target! Then, set it to Real ID and you might get either 89 or 111
But, which would you rather have? A spread of TID's to 120 which it can do and tell the difference between both copper and silver coins (and other targets) or compress to 99?
I like the ability to have a greater spread but then one day you might select a program/mode that has all of that Preset and you get confused?
That is why the Minelab E Trac with 'true multi frequency' that you, the User cannot change is, much easier to work with because there's little disparity between TID's hence less confusion"

 

[Mudwhale]

Between DI99, DI3 and DI4 and all the GEN modes, the ID'S are the same just different tones. I stick with DI99 because of the different tones. I love this mode....

 

[Tom Slick]

Mudwhale - DI99, DI3,DI4 and the GEN modes don't all have the same VDI numbers for like coins. Check again.

 

[Mudwhale]

Mudwhale - DI99, DI3,DI4 and the GEN modes don't all have the same VDI numbers for like coins. Check again.

I stand corrected! I wasn't paying attention to the VDI's when I played with the GEN modes but just the audio for target verification only.