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How To Get Maximum Depth (Repost):detecting:

John-Edmonton

Moderator
Staff member
* With the AT Pro, learn and hunt in Pro mode. It is deeper then standard mode. With the AT Gold, the all metal mode is deeper then Disc 1 or Disc 2.

* Has a place been hunted out? Go back and try again after a good rain soaking. Moist wet soil gives better sensitivity and greater depth readings for targets.

* If you get a nice high audio and a VDI in the 70's or 80's, dig it.

* The larger the coil the deeper it goes. However, too many targets under a large coil can mask a good target. If you get a slight good audio using the large coil, lift it up 2-3 inches and center the coil where the good audio was. Often times the good target will be much clearer.

* Get a coil cover and scrub the ground. Some people scan the ground inches above it...."DON'T" You can gain a couple of inches scrubbing, which is significant.

* Don't swing too fast! Just because it has a very fast "recovery speed"......doesn't mean it can always pick out that one good silver coin amongst several pieces of junk. The electronics still need to process lots of information.

"SWING TOO FAST, YOU WILL COME LAST"

* Swinging too fast can make you a sloppy hunter. You also risk eventually cracking/breaking your coil and elephant ears from the constant banging on trees, playground equipment or concrete.

* If you are getting lots of EMI or increased mineralization which is causing erratic audio, try adjusting your discrimination first, before lowering the sensitivity. This sometimes lets the machine run smoother without losing any depth.

* If you get mixture of audio signals, scan the target from different directions. Sometimes a good target is beside or partially underneath a good target. The AT Series has a unique ability to pick out those good targets amongst the trash. Going at the target from different directions allows the AT Pro to perform even better!

* Ground balance your machine occasionally. Temperature can change, and directly affect the settings. Hunting in shade vs. sun can vary. "a 14 degree difference on a lawn area to a 35 degree difference on a parking lot." But, the mineralization can also change between areas....so again...ground balance periodically.

* To increase the depth/sensitivity to silver targets, lower the ground balanced numbers 10-20 points

* If you are hunting an area that is absolutely covered with nails, try ground balancing out a nail until it is nothing but a small amount of static. Now....all the copper & silver targets will give a loud audio response....BUT the target ID will be off.

* Build a test garden...use good & bad targets at different depths. You will soon discover that deep silver targets beyond depths of 8 or more inches begin to not sound off as a high pitch or that the VDI numbers remain in the 80's. That is very good information to know. My rule of thumb states if it's deep....it's old. Dig it! It costs you nothing.

* Run your battery charges at the top 1/4 fully charged, not the last 1/4 charged battery condition segment. The AT Series will run 100% until the battery runs down to a certain point. Because nobody knows exactly where that point is on their machine, don't try and find out. With the price of cheap alkalines or rechargeable "AA" batteries, you should never reach that unknown power loss point. Bring spares, or top off your recharge ables before the hunt

* Read the manual and watch the videos. Garrett has posted many videos to help with problem areas such as pin-pointing, ground balancing, iron-audio, target id, target sizing. These are just a few. Go to the link for a complete view :

Click below on either for more information.......

AT Pro: http://www.garrett.com/hobbysite/hbby_at_pro_videos.aspx

AT Gold: http://www.garrett.com/hobbysite/hbby_at_gold_library_videos.aspx
 
Great info John!

I will seek areas of high trash/iron once in a while (usually when there are not a lot of good targets in an area,) and usually find some good stuff hidden in all the junk. Your suggested techniques work and am happy that I put them into use a while ago.

In hot weather,the headphones sometimes bother me, so I unhook them and listen to the audio & watch the VDI, I might miss a few of the very faint targets, but the freedom from the headphones is nice sometimes, especially in high trash areas.
 
Good reminders and always worth reading through! Thanks for posting them, John. :thumbup:
 
Great Info John. This is my opinion only, I have tested it and works great for me for almost a year now. I run my Garrett At Pro with the ground balance at 86 ONLY (I don't ever ground balance). I believe this is a neutral number..it's goes deep in all grounds. Very effective on gold and silver rings. 17 gold rings and 19 silver rings should be proof (In 11 months, parks and school only)... Hope this info help others, happy hunting.
 
Thank you very Much John. I am still so New with the AT Pro. I need so Badly to Learn to hunt in the Pro Mode. I have ringing of the ear in my left ear.It never goes away. I have a very hard time in Pro Mode with all the Noise. I did hunt this way for the 1st month of ownership. I went to standard mode.

My question is this one to you and all owners of this great MD. I use all the other methods to hunt. Do you have any suggestions to help me with my ringing of my ear and hunting in the Pro Mode? Beale.
 
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