Anyone know what depth the target ID becomes inaccurate :confused:

[wvrick]

Anyone know how deep before the ID reads wrong? I was thinking maybe 6-8"

Thanks, HH

 

[jbow]

I didn't know that the CO number became inaccurate at any depth...

J

 

[LabradorBob]

The target id can become inaccurate according to the amount of iron and junk in the soil.
My best advice is to listen for the tones, Mainly high, That would be a good target.
But, You have to learn to not only watch the id,but listen for the good tones also.
The only reason i even look at the id any more is to see if it is iron.
I get a really high pitch for iron,usually it is bits and pieces of old rusty iron,or a nail head.
So,by glancing at the screen,if it is iron,the ferrous side will show 01!
Then i pass it up,If ferrous is higher , Like 10 or more i will dig!
There are a lot of variables in the equation,depending on the settings you are running!
But i have seen target id off,when the coin was four inches in a lot of junk!
There are very few text book hits in parks anymore!
If it is,it is usually clad.
anyway,just listen for the tones more and dig,dig,dig.

LabradorBob

 

[Jason in Enid]

Hmmm, Bob seems to have nailed the answer. I have dug deep coins that were spot on the number, and I have dug shallow coins that were not close. Memorials reading as quarters, quarters reading as zincolns. It all has to do with what trash is there and how close to the coin.

 

[Nick A]

Having just dug a flat oriented silver quarter at 12"+ with a faint signal but solid ID at 12-47... I'd say the target ID is pretty decent at depth, lol. I also find that target ID is very dependent on soil conditions, target orientation and the amount of co-located junk. All that said, the E-Trac is the most accurate ID machine I've ever used. The accuracy of the ID at depth never fails to amaze me. Silver will almost always give you a "dig" signal, even if the ID is not dead on. Shallow targets 1" or less will throw the ID off as well, with the ID number usually being a bit high sometimes.

 

[NebTrac]

I agree with Nick, though I don't remember any coin at 12", but I've had 'em close to 10" and for sure the Co#'s are pretty darn consistant. It always seems to be the shallower (less than 3 inches) that give the most problem. The reason is we always have our sensitivity set up for deeper targets and shallow targets can be goofy sometimes.

NebTrac

 

[dewcon4414]

Greater the sensitivity the larger the coil halo. This has an affect on the amount of targets being processed. The processor has to average, which includes size of the targets, disc and eliminate targets to come up with a reading. Also, if you arent over the target or there are a ton of targets in the ground you get varied readings.

Dew

 

[UtahRich]

My Target ID is NEVER inaccurate. It always gives me the EXACT reading is measures.






Rich

 

[gregliss]

In my experience, in my soil conditions, it's the bottom 1/4 of the detection range (9-12") that the FE component of the ID will move a lot, typically down towards iron. CO numbers usually stay fairly consistant on a smooth coin target.

Depends a lot on soil conditions.

Cheers,
Greg

 

[wvrick]

Thanks Everyone for you post and all the info.

HH Rick

 

[utahshovelhead]

My experiance is pretty much as Dewcon put it. If all targets were in clean ground and apart from each other it would be a nice dream.

 

[D&P-OR]

Rick-----The CO #'s on the Etrac are pretty accurate (at depth)--ground & trash conditions considered.-----But tones ALWAYS comes first so concentrate on becoming a "tone or sound" hunter (to get those DEEEP, difficult targets (coins).----Both the Explorers & the Etracs are just plan murderous deep silver/copper "killers".----For this kind of hunting, there "just ain't nothin like 'em"---there just isn't anything on the market that will touch 'em, PERIOD!-----Mid range conductive, now that's a different story--"a whole nuther ball game"---------JMHO, Del