Hi, Im trying to decide between the two detectors. The eureka has 3 different frequencies and as far as I can work out the lower the frequency the further down it detects is that right and the higher frequency of 60 will detect very small amounts of gold. And it has a lot of manual knobs and switches compared to the AT Gold is this something that will be hard to learn to use and set up being a beginner. Im going to be using the machine in northern nsw if that makes a difference or not. Which one would you choose all the info you can provide will be helpful.