Iron Check On ATX Fooled By Large Nuggets?

[ezdave]

Hi Steve, I just got my new ATX today and was wondering if the Iron Check function could be fooled by a large nugget, as I do not have one to check with I thought I would ask your advice. I am going to Alaska where there is potential for a larger nugget and do not want to leave it in the ground if ID says Iron but also do not want to dig a lot of iron if there is a lot. I know nugget hunting is kind of a dig all experience but want to spend most of my precious few hours looking for gold and not just digging trash. Thanks for any advice!
ezdave

[Steve Herschbach]

The iron check only works on shallow stuff so is no help when you need it most - on big deep junk. It appears to be very conservative and more likely to call iron junk good than call a gold nugget iron, as long as yow are getting a strong reading. Do not trust weak signals. I would not worry much about it making a bad call on a shallow large nugget but as always, when in doubt, dig it out!