AT Pro question

[mark_painter]

I've had my AT pro now for a couple of weeks and this past Saturday got to spend sometime out in the woods. I was hunting near an old well where local family history tells Civil War deserters/draft dodgers hung out. The first thing I found, in the roots of an old hedge tree was an 1844 braided hair one cent piece.

on a flat level spot, I started getting hits in the 75-80 range, but all that we dug up were large pieces of what used to be a cast iron cooking stove. Some of the pieces were quite large. Anyone know why cast iron would ping that high?

 

[John-Edmonton]

These videos might help you if you have not already seen them:


http://www.garrett.com/hobbysite/hbby_at_pro_basics6_video.aspx
http://www.garrett.com/hobbysite/hbby_at_pro_sizing.aspx

A metal detector is designed to get a fairly accurate discrimination reading based on a coin sized object. That's why when you find a pulltab, it reads where aluminum should, yet a complete size aluminum can will read as a good target. You can get some more useful information by swinging your coil and raising it at the same time. A coin sized object will fade away sooner then a larger object. The iron audio feature on the AT should also work when dealing with large pieces of cast iron. Your detector is working fine.

Congrats on finding that 1844 braided hair one cent. A great find in deed!

Hope this helps

 

[mark_painter]

OK, that makes sense. Thanks for the links!!

Mark