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Bench Tested The New :garrett: AT Max.......Very Very Impressive. Check It Out:thumbup:
Posted by: John-Edmonton
Date: August 01, 2017 11:32PM
Spent the last couple of days doing bench tests with the new AT Max. I was was using the 8.5" x 11" DD coil which came with the unit. The true all metal mode, as expected got excellent depth over the zero discriminate. The true all metal mode pulled out an extra 4" depth on the large gold 14K ring compared to the zero discriminate mode. Even the tiny flake of gold showed it's presence on the big coil. Very impressive. This machine is tweaked to love gold! Excellent improvement....thanks Garrett!

Even in discriminate mode, this machine is getting fantastic air depth! 9" on a Mercury dime, 9.5" smaller musket ball and again, a mighty 13" on that 14K gold ring.
This air test shows the maximum depth potential of the new AT Max. The actual depth you get where you hunt, will vary, depending on the soil conditions, the coil you use, how you set up the detector. I actually got more depth, air testing the detector in 8/8 bars sensitivity, however, the machine was getting unstable at times, so I opted to test with 7/8 bars, a more stable unit.

I used the minimal amount of threshold, in that there was no slight background noise. It you are looking for those real deep signals, turn up the threshold to a mild background audio, and dig any changes you hear with the audio. That's how to squeeze even more depth out of this detector.

I still have to do some more testing in the field. The detector has the ability to ground balance even better the the other AT Models, so I am looking forward to trying it out in some challenging alkaline lakes where I live.

Can't wait to doing some serious relic hunting along with pulling out some gold rings in some of my favorite hunting spots.:thumbup:



Here is a summary of my bench testing. I was conservative with the distances. I could still hear audio beyond the shown distances, however, I chose to use the point at which the signal just started to lose it's proper audio.



Here is a histogram doing a visual comparison on the AT Max showing the differences in depth between zero discriminate mode and true all metal mode. Keep in mind that when hunting in the deep true all metal mode, VDI numbers still indicate the target's conductivity. Silver coins will still show a VDI in the 80's, but you wont get that high tone like hunting in the other modes.

I am looking forward to seeing how that 5" x 8" coil works on this new machine. I am guessing it will be hot on gold nuggies! And those meteorites......I bet the true all metal mode will be just the ticket!




Re: Bench Tested The New :garrett: AT Max.......Very Very Impressive. Check It Out:thumbup:
Posted by: Buddy_TX
Date: August 02, 2017 11:26AM
John I also was impressed with the air test depth on the Max when i was at the factory. I think its going to be a Killer unit..be a lot of pros up for sale soon LOL

The threshold was something that really surprised and pleased me as to how well and easy it is to set. For us old Folks it will help a lot, with 80% loss of hearing it makes a lot of difference as to what I can hear with it.

Buddy_ TX



AT MAX
AT PRO
Detector Pro Wader, 8" and 10"
Detector Pro Pirate Pro
Tesoro Stingray
Fisher 1280x
Whites Amphibian and Surfmaster TR
Tesoro Silver saber
Tesoro Golden Saber II
Garrett S-1, S-2, S-3 TRs
Compass Q.
Silver Turtle
TR Turtle
VLF Turtle
and a few odd balls in the back of the closet



Edited 1 time(s). Last edit at 08/02/2017 05:07PM by John-Edmonton.

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Re: Bench Tested The New :garrett: AT Max.......Very Very Impressive. Check It Out:thumbup:
Posted by: John-Edmonton
Date: August 02, 2017 05:05PM
I am going to do a test with the AT Max "MAXED" out with sensitivity and using the threshold option, measuring the depths of faint signals. This test should validate what you have just stated.:thumbup:



Edited 1 time(s). Last edit at 08/02/2017 05:08PM by John-Edmonton.




Re: Bench Tested The New :Garrett: AT Max.......Very Very Impressive. Check It Out:thumbup:
Posted by: Buddy_TX
Date: August 02, 2017 08:38PM
DO two other things when you do that test John. You stated you tried the threshold at 00. test in at 00 first, then switch it 03, then switch it to -02.
Think you may be surprised..
Let us know what you think

PS it works at max sens or lowered sens. just try it!!

Buddy_ TX



AT MAX
AT PRO
Detector Pro Wader, 8" and 10"
Detector Pro Pirate Pro
Tesoro Stingray
Fisher 1280x
Whites Amphibian and Surfmaster TR
Tesoro Silver saber
Tesoro Golden Saber II
Garrett S-1, S-2, S-3 TRs
Compass Q.
Silver Turtle
TR Turtle
VLF Turtle
and a few odd balls in the back of the closet

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