AT Pro issues?

[bigfish313]

Thanks again for inputs. Spent my last hunt in pro 0. Iron disc set at 35. Dug a lot of trash but think it's somewhat necessary to learn what it's telling me and become comfortable not digging something. Found a King George III half penny at 8 inches with the 8x11.5 coil. Was iffy but got enough high tone hits to go ahead and dig.

I did the exact same thing today except I found a 1942 wheat penny at about 8".
Thanks for starting this thread! I think I'm going to like this detector.

 

Amazon Forum Fav 👍

A Handbook of Civil War Bullets and Cartridges - Grab it through Amazon!

[lookindown]

After four seasons with atpro, believe me, Iron Audio (IA) is the exact opposite of what you want to use if you want to id targets by audio. If you want to id targets by audio, run pro mode, zero iron scrim, notch everything in, IA OFF. That way, you get TRUE audio id on everything. Iron sounds low, gold, lead, foil, aluminum, brass, and the like will sound mid, and copper and silver will sound high pitch. When you turn iron audio ON, ALL TARGETS ABOVE THE IRON SCRIM NUMBER up to 40 WILL SOUND MID TONE. Any iron targets below the iron target will sound like iron with the enhanced audio scratchy sounds. For example, if you have your iron scrim set to forty, and IA ON, it will sorta act normal, but a lot more talky on iron. If you have your iron scrim set to forty, that negates ever even needing IA to begin with. Now, if you have your iron scrim number set to say 20, IA ON, all the iron between 20 and 40 will sound mid tone, which is absurd, it should sound low tone, right? It's iron. If you set iron scrim to zero and IA on, ALL IRON WILL SOUND MID TONE, which is ludicrous, and the machine becomes essentially worthless. That is why Garrett tells us not to use IA in the trash. So I can't understand how IA helps anybody at all. IA is just a gimmicky thing to help newbs id rusty bottle caps, but these are much easier to identify WITHOUT IA once you get weened off it. You should never hunt with IA on all the time. It is designed only to help id certain iron, specifically round iron, which tends to fool vlf machines by popping high pitch. With atpro, nails and rusty can bits and such never pop high and are rock solid low tone all the time, even with sense cranked max 8. If you learn atpro without IA, you will be a much, much better atpro user.

Right on gleaner, people don't understand what iron audio is...I NEVER use iron audio...to i.d. a bottle cap I move the coil back from the target as Im sweeping back and forth...you will get an iron grunt on your last signal if its a bottle cap...Im talking about the old style crown caps, not the aluminum screw caps...the aluminum screw caps sound good no matter what.

 

[lookindown]

I just bought my AT Pro 5 days ago. Had it out about 5 times so far and haven't found much. I did find my first silver ring with it yesterday but the ring was barely below the surface.
I was wondering about how deep this AT Pro would go, so I did some testing. I was in Pro Coin mode with the stock coil the whole time.
Air test: Dime 6" Quarter 7" Silver half 7" and Silver Dollar 7". Yard test: I pounded a 2" diameter PVC pipe 6" deep into the ground and removed the plug. Measured the hole again at 6" with a ruler and dropped in a quarter. My brand new AT Pro could not find it in Pro coin mode or any other mode I tried.

In pro mode zero with 7 of 8 bars sensitivity, my AT air tests a clad quarter at 11 inches and a clad dime at 9...that's with a good repeatable signal with a normal sweep speed...your AT is way off.

 

[lookindown]

Deeper old coins won't give you a solid # or ID, especially if there is iron or other junk in the soil. I have dug many deep pennies that were well over 8", most of them were iffy signals that would bounce around from the 60s to low 80s. Last summer I found a signal that was all over the place, but swinging the coil low and slow in one spot would sometimes get a repeatable high tone with a VDI in the 80s. Iron audio grunted like crazy. I dug it and several inches down was a 35' Washington quarter standing on end but I also found several nails in the same hole.

Use headphones if you already aren't. They help you hear the faint high tones of deeper objects. Sometimes on really deep coins you will get a faint high tone but no VDI numbers.

I typically run mine in Pro: Zero, nothing discriminated out, iron disc at 30, and sensitivity adjusted based on the amount of targets/trash/....

10" is a stretch for a coin with the AT Pro in my experience. It could probably detect a coin that deep, but I doubt it would give a nice sweet high tone or VDI number, the tones and ID would be much lower and broken up.

I agree with everything you said...if I get a high tone mixed with other tones I will try to "fish" out the high tone by circling the target and doing tight wiggles with the coil...sometimes only one little angle will give you a repeatable...even if I cant get a repeatable high tone, sometimes Ill dig anyway and pull out a piece of trash or iron and then rescan and there is my solid high tone...I love pulling coins out of trash.

 

[Professor of Engineering]

"wecoyote" has very good advice! In my test bed (5 years old) the AT pro hits a 10" quarter, but not very well. When relic hunting, I have no problem hitting nice iron finds at 12" - 14" of course these are larger targets. As a side note, my V3i and Explorer SE had no problem hitting the quarter. On the AT pro I use the larger stock coil and on the AT Gold the smaller stock coil, both machines are my relic hunting first choice.

 

[boss driver]

Took the Pro out today, found a small Tudor button at 9". Rough signal but amazing to find it at that depth. Really starting to like this machine!

 

[doowhat]

1) manual ground balance with as low a GB number possible.

I've never manually ground balanced but I understand the concept ... So how would you set it to the lowest possible number?

 

[bzbadger]

You drop the numbers to the point you get chatter then back up a few numbers

 

[wecoyote]

Yep.

 

[doowhat]

Ok cool thanks that's what I was thinking

 

[gleaner1]

You drop the numbers to the point you get chatter then back up a few numbers

Ok boyz n girlz listen closely atpro will not chatter with gb set to zero or gb 99 or gb a gazzilion or gb -63 or gb what the frik ever. Unless, of course, you are in your house with all that crazy wacky 60 hz crap going on. This is the truth. Your welcome.

 

[boss driver]

Gotta trust it! Found a 1923 farthing and a 1749 King George Penny today with the 5 x 8 coil.

 

[choppadude]

I have no problems hitting dimes at 8" with my AT Pros with stock coil (have 3) and have hit several dimes at 10+" with the NEL Tornado coil

 

[Opie]

Hmmm, so you should expect to hit a US nickel air test at anywhere from 6-10 inches. Most forget batteries, temperature, EMI, cell towers ect, can cause unique situations. Iron audio adds the odd sounding snipet to the beginning tone, to let you know there is a question to the targets identity. Its recommended to not use this in heavy iron, because of cross talk on the signal sounds made from the iron field. Hench the snipet at the beginning of the signal is sounding off on rust, oxidized aluminum, plane oxidization, livestock urin/feces, rotting burnt wood. Iron audio is "not" a added worthless feature it does have its place. Iron audio can help you define an old heavily mineral plated old silver coin, that will not read in the targeted tonal response because of the mineralized plating. Back to your depth question; on one July day last year one buffalo nickel gave me 16 different depths (air test) because of temperature, (cloudy then full sun in the testing area) Batteries, these were changed with several different brands and types and yes there can be differences, and different electrical devices were used near by; IE electric laundry dryer, microwave ect.

 

[gleaner1]

Hmmm, so you should expect to hit a US nickel air test at anywhere from 6-10 inches. Most forget batteries, temperature, EMI, cell towers ect, can cause unique situations. Iron audio adds the odd sounding snipet to the beginning tone, to let you know there is a question to the targets identity. Its recommended to not use this in heavy iron, because of cross talk on the signal sounds made from the iron field. Hench the snipet at the beginning of the signal is sounding off on rust, oxidized aluminum, plane oxidization, livestock urin/feces, rotting burnt wood. Iron audio is "not" a added worthless feature it does have its place. Iron audio can help you define an old heavily mineral plated old silver coin, that will not read in the targeted tonal response because of the mineralized plating. Back to your depth question; on one July day last year one buffalo nickel gave me 16 different depths (air test) because of temperature, (cloudy then full sun in the testing area) Batteries, these were changed with several different brands and types and yes there can be differences, and different electrical devices were used near by; IE electric laundry dryer, microwave ect.

Hmmm, so you should expect to hit a US nickel air test at anywhere from 6-10 inches. YES DEPENDING ON COIL SIZE AND TYPE Most forget batteries, temperature, EMI, cell towers ect, can cause unique situations NO. YOU CANNOT TELL WHAT MOST PEOPLE FORGET. PLUS ATPRO IS THE ONE OF THE MOST STABLE MACHINES, EVEN AROUND "EMI" AND CELL TOWERS. Iron audio adds the odd sounding snipet to the beginning tone, to let you know there is a question to the targets identity. WHAT, EXACTLY, IN SIMPLE LANGUAGE, IS A FRIKIN SNIPET? AND HOW CAN A MACHINE LET YOU KNOW THERE IS A QUESTION ON ANYTHING? IA AFFECTS THE AUDIO RESPONSE ON IRON TARGETS, AS THE COIL BOTH APPROACHES AND LEAVES THE TARGET WHILE SWEEPING, THINK LOW-HIGH-LOW. Its recommended to not use this in heavy iron ERRONEOUSLY STATED. GARRETT DOES NOT RECOMMEND USING IA IN HEAVY TRASH PERIOD, NOT JUST IRON. YOU DO NOT UNDERSTAND IA. , because of cross talk on the signal sounds made from the iron field. ABSOLUTE RUBBISH. READ THE OWNERS MANUAL AND WATCH THE GARRETT PUBLISHED VIDEOS DEMONSTRATING THE CHARACTERISTICS OF IA, AND SEE MY POSTS REGARDING THE EXACT CHARACTERISTICS AND APPLICATIONS OF IA WHICH I EXPLAIN IN A DETAILED DIRECT MANNER THAT ANYBODY CAN UNDERSTAND. I DONT HAVE A CLUE WHAT YOU MEAN BY "CROSS TALK" ON THE "IRON FIELD". Hench HENSE, NOT HENCHthe snipet at the beginning of the signal is sounding off on rust, oxidized aluminum, plane oxidization, livestock urin/feces, rotting burnt wood. SNIPET? IA ONLY ENHANCES THE SIGNAL FROM IRON TARGETS, NOT ANY OF THE STUFF YOU LIST OMFG. Iron audio is "not" a added worthless feature it does have its place. YES, BUT YOU DONT UNDERSTAND IT. Iron audio can help you define an old heavily mineral plated old silver coin, that will not read in the targeted tonal response because of the mineralized plating. ABSOLUTE RUBBISH IA ONLY AFFECTS IRON, IF ITS SILVER, YOU WILL KNOW IT, EVEN IF ITS HEAVILY MINERALIZED PLATED, WHATEVER THAT MEANS. Back to your depth question; on one July day last year one buffalo nickel gave me 16 different depths (air test) because of temperature, (cloudy then full sun in the testing area) ARE YOU SERIOUS?? Batteries, these were changed with several different brands and types and yes there can be differences, and different electrical devices were used near by; IE electric laundry dryer, microwave ect. NOBODY METAL DETECTS NEAR LAUNDRY DRYERS AND MICROWAVES. AND YOU CLEARLY DO NOT KNOW WHAT YOU ARE TALKING ABOUT CONCERNING ATPRO OR IA, BUT I TRUST YOU WILL SOMEDAY. BEST REGARDS AND BEST OF LUCK TO YOU OPIE.

 

[MackDog]

The Pro will find a buried coin better than air testing if it's been in the ground, the longer the better. Yesterday dug 3, 8" signals. !930, 1917 wheats and 1899 Indian. These all rang up with loud and clear signals. I use the Nel Storm and Grey Ghost headphones. I hunt mainly parks, they have been hunted by others. You want depth run Pro zero, Iron 32, big coil. Scrub the ground and go SLOW, repeat go Slow and grid search. If your hitting a park start one end and completely search it
Good luck

 

[Opie]

gleaner1, Thank you for your comments, also thanks for pointing out my auto correct. I would like to re-address my spelling as completely wrong, I wanted the word "hence"
I spoke at length with my friends and colleagues at Garrett concerning your comments.
I don't want a mud slinging match, I simply was addressing the AT Pro as a professional detecting tool with features many are not familiar with and the many interferences that can come along with such performance.
Garrett does not recommend IA in heavy Iron. The concept of IA is for heavy trash area's.
The comments of Laundry dryers and microwaves is the location "I" was in using my detector.
A Laundry-mat was less than 75 yards away, and up the hillside is a Microwave Tower. (Not the most prime location) (But an example of how things can happen)
Iron targets can fool a detector do to how they are laying in the ground, their size and shape also add to this. IA is designed around this concept.
Cross talk is the same overly repeated tone from detector target overload. (This can be low or high tones) This also happens when two similar frequencies of machines are used near each other.
There is a definite difference in battery performance between battery types, brands and styles. IE Rechargeable batteries 1.2 V Standard Alkaline 1.5 V temperature can effect the batteries.
Thank you for what you do for our sport. Your helpful video's and posts I'm sure are welcomed by many, and thank you for supporting Garrett.

 

[dirtscratcher]

Hmmm, so you should expect to hit a US nickel air test at anywhere from 6-10 inches. YES DEPENDING ON COIL SIZE AND TYPE Most forget batteries, temperature, EMI, cell towers ect, can cause unique situations NO. YOU CANNOT TELL WHAT MOST PEOPLE FORGET. PLUS ATPRO IS THE ONE OF THE MOST STABLE MACHINES, EVEN AROUND "EMI" AND CELL TOWERS. Iron audio adds the odd sounding snipet to the beginning tone, to let you know there is a question to the targets identity. WHAT, EXACTLY, IN SIMPLE LANGUAGE, IS A FRIKIN SNIPET? AND HOW CAN A MACHINE LET YOU KNOW THERE IS A QUESTION ON ANYTHING? IA AFFECTS THE AUDIO RESPONSE ON IRON TARGETS, AS THE COIL BOTH APPROACHES AND LEAVES THE TARGET WHILE SWEEPING, THINK LOW-HIGH-LOW. Its recommended to not use this in heavy iron ERRONEOUSLY STATED. GARRETT DOES NOT RECOMMEND USING IA IN HEAVY TRASH PERIOD, NOT JUST IRON. YOU DO NOT UNDERSTAND IA. , because of cross talk on the signal sounds made from the iron field. ABSOLUTE RUBBISH. READ THE OWNERS MANUAL AND WATCH THE GARRETT PUBLISHED VIDEOS DEMONSTRATING THE CHARACTERISTICS OF IA, AND SEE MY POSTS REGARDING THE EXACT CHARACTERISTICS AND APPLICATIONS OF IA WHICH I EXPLAIN IN A DETAILED DIRECT MANNER THAT ANYBODY CAN UNDERSTAND. I DONT HAVE A CLUE WHAT YOU MEAN BY "CROSS TALK" ON THE "IRON FIELD". Hench HENSE, NOT HENCHthe snipet at the beginning of the signal is sounding off on rust, oxidized aluminum, plane oxidization, livestock urin/feces, rotting burnt wood. SNIPET? IA ONLY ENHANCES THE SIGNAL FROM IRON TARGETS, NOT ANY OF THE STUFF YOU LIST OMFG. Iron audio is "not" a added worthless feature it does have its place. YES, BUT YOU DONT UNDERSTAND IT. Iron audio can help you define an old heavily mineral plated old silver coin, that will not read in the targeted tonal response because of the mineralized plating. ABSOLUTE RUBBISH IA ONLY AFFECTS IRON, IF ITS SILVER, YOU WILL KNOW IT, EVEN IF ITS HEAVILY MINERALIZED PLATED, WHATEVER THAT MEANS. Back to your depth question; on one July day last year one buffalo nickel gave me 16 different depths (air test) because of temperature, (cloudy then full sun in the testing area) ARE YOU SERIOUS?? Batteries, these were changed with several different brands and types and yes there can be differences, and different electrical devices were used near by; IE electric laundry dryer, microwave ect. NOBODY METAL DETECTS NEAR LAUNDRY DRYERS AND MICROWAVES. AND YOU CLEARLY DO NOT KNOW WHAT YOU ARE TALKING ABOUT CONCERNING ATPRO OR IA, BUT I TRUST YOU WILL SOMEDAY. BEST REGARDS AND BEST OF LUCK TO YOU OPIE.

You need a snickers.

 

[gleaner1]

gleaner1, Thank you for your comments, also thanks for pointing out my auto correct. I would like to re-address my spelling as completely wrong, I wanted the word "hence"
I spoke at length with my friends and colleagues at Garrett concerning your comments.
I don't want a mud slinging match, I simply was addressing the AT Pro as a professional detecting tool with features many are not familiar with and the many interferences that can come along with such performance.
Garrett does not recommend IA in heavy Iron. The concept of IA is for heavy trash area's.
The comments of Laundry dryers and microwaves is the location "I" was in using my detector.
A Laundry-mat was less than 75 yards away, and up the hillside is a Microwave Tower. (Not the most prime location) (But an example of how things can happen)
Iron targets can fool a detector do to how they are laying in the ground, their size and shape also add to this. IA is designed around this concept.
Cross talk is the same overly repeated tone from detector target overload. (This can be low or high tones) This also happens when two similar frequencies of machines are used near each other.
There is a definite difference in battery performance between battery types, brands and styles. IE Rechargeable batteries 1.2 V Standard Alkaline 1.5 V temperature can effect the batteries.
Thank you for what you do for our sport. Your helpful video's and posts I'm sure are welcomed by many, and thank you for supporting Garrett.

You are correct, the manual states not to use IA in heavy iron trash. I am sure that everyone will agree that atpro is extraordinarily stable as far as cell towers and laundry driers are concerned, including your friends and colleagues at garrett. I get a little chatter under power lines but its manageable with sensible sense settings. My atpro hates my cz as far as cross talk. It is undeniable that most good seasoned atpro users never use IA, its a little gimmicky thing designed for newbies to help them figure out round rusty washers and bottle caps, which will fool most any good tecter, but they dont fool us. IA is not needed to tell if you are over nails or horseshoes, because nails never pop high pitch, and big rust is, well big rust, you can tell its big, its not a coin. IA puts you at a deficit if you sniping coins out of Trash Park. And once again, feel free to read my posts about the functions of IA and how it affects the machine audio on targets that come in from zero to forty. It's kinda complicated, but I am sure you will soon understand it. As far as the op is concerned, we have answered his concerns, that is the atpro hates freshly buried clad crap. Its kinda strange actually. I love my pro.

 

[gleaner1]

OMG dirtscratcher, how can possibly comment on my comment? You are off topic, and off brand. I dont eat sugary crap like snickers and donuts. LMAO