Posted by MI(IA)
on 10/30/2009, 3:26 pm
173.28.79.38
While using my GTA 1000 and CX III,I've came to the conclusion that Garrett uses a preset ground balance that is set a bit negative in the discriminate mode. Here is how I've came to this conclusion. While hunting in the disc mode a signal registered as being a penny. I pressed the Pinpoint touchpad and it indicated that the target was at 5". I dug a horseshoe plug and flipped it over. It was indeed a penny at 5". I re-scanned the hole to see if there was anything else...nothing. I then flipped the plug over and stepped on it to make sure it was secure. I make a habit of swinging around the area of the plug to see if there was a coin spill. While sweeping over the same plug,I got a soft repeatable signal. The cursor jumped around in the iron/foil range. I knew I had that hole and plug thoroughly searched over with my electronic pinpointer and found nothing. Was this signal caused by having the detector's ground balance set negatively? Was it reacting to the penny's residual oxidized halo? I've also noticed while pinpointing into the open hole after digging the plug...that the target would not audibly register correctly or even detect anything at all. Even if the depth wasn't too deep. Many times I would dig just a few inches into the hole and find the target. Is this another sign of a negatively set ground balance? I don't mean to bash Garretts in general,but I'd like to know what's going on. I'm no greenhorn by any means and have been swinging metal detectors since 1987. Using various brands...Tesoro,Whites,Garretts and Fishers. I really like the Garretts,but don't care for what I've described about them. I run the Garrett at preset or higher settings in most applications when I can. Any insight would be appeciated.
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