Hi Eric,
Information was recently posted on another forum from a GS 5 owner who used the high tone switch setting to look for small gold in a junk infested area. As he pointed out not all ferrous junk is eliminated in that tone mode. Unfortunately, there is a percentage of thin metal trash such as parts of old rusty tin cans that will cause a high tone signal right along with the low conductor objects such as small gold. Fortunately, most of this ferrous trash stays close to the surface and as a result will generate a very strong signal when the coil is close to it. Generally, the tone change is much greater on the ferrous trash than on a desirable object.
What I found is I can reverse the tone so normally small high tone gold will now create a low tone. I then lower the gain and search slowly. Generally, the small ferrous junk that responds like a small piece of gold will create a much lower stuttering signal response if the coil is close to it, while small gold has a much smoother signal with less of a tone change. This takes a little practice to find the best settings but it can help with separating small gold from the tin can type junk.
Reg
Information was recently posted on another forum from a GS 5 owner who used the high tone switch setting to look for small gold in a junk infested area. As he pointed out not all ferrous junk is eliminated in that tone mode. Unfortunately, there is a percentage of thin metal trash such as parts of old rusty tin cans that will cause a high tone signal right along with the low conductor objects such as small gold. Fortunately, most of this ferrous trash stays close to the surface and as a result will generate a very strong signal when the coil is close to it. Generally, the tone change is much greater on the ferrous trash than on a desirable object.
What I found is I can reverse the tone so normally small high tone gold will now create a low tone. I then lower the gain and search slowly. Generally, the small ferrous junk that responds like a small piece of gold will create a much lower stuttering signal response if the coil is close to it, while small gold has a much smoother signal with less of a tone change. This takes a little practice to find the best settings but it can help with separating small gold from the tin can type junk.
Reg