Re: Re: Deep? airtest vs. in the dirt

air testing works good to show detectors and to see how they are working - not accurate. as some machine air test better than others. But if you are going to true ground test I think you need to leave coin in the soil with moisture so it gets a halo. Some of them I have been watching they dig a trench and stick them in the side, but they are in plastic and on stick so soil is doing nothing might as well just air test. Sorry I didn't get to watch the video you had on there mark