I mainly run a Minelab Vanquish 540 and search for coins and/or jewelry. So it's a rare occurrence for me to hear it sound off on iron or EMI.
I recently acquired a barely used AT Max and compared to my 540, it sounds like it's nuts, with chatter like crazy. Some of this appears to be EMI. But it also seems to be super sensitivity to faint signals, especially iron.
I used it outside for a bit and I usually needed to set the sensitivity to 2, 3 or 4 (out of eight) to stop the chatter. My understanding is that I have 3 realistic options to reduce chatter.
One, I can adjust the frequency/channel (F1-F4) and see if that helps.
Two, I can reduce the sensitivity while the machine is on. This seems to work, but I'm afraid it's killing my depth (although I don't know by how much).
Three, I can set the sensitivity to 1 and turn off the machine. Then, turn it back on and only then, adjust the sensitivity to as high as I can get away with. The higher the sensitivity is set when turning it off, the more chatter I get when I turn it on.
Are there any of things I can do to get a less fritzy machine?
Any insight or experiences will be appreciated. Most likely I'll sell either this or one my Vanquishes and right now, the AT Max is getting clobbered by the 540. But to be fair, I've used the 540 for probably 50 or so hours and the AT Max for less than 2.
I purchased the new Viper coil for my AT Max and have run it thru my Test garden. I think it will do just what I had hoped; a little deeper than the excellent 5x8 with near matching separation coupled with the ground coverage of the stock 8.5X11. Very stable & sensitive.
I'm starting a new thread (for an obvious reason -- change of topic), triggered by the following post:
My question is specifically about this spinoff/version of the show. It's evolved into two related, semi-cooperative crews dredging McKinley Creek near the Northern end of the Alaska Panhandle. If somebody wants to bring up Todd Hoffman (oops, I just did), etc., well that's not what I'm hoping to read about. But it's a free world.
I'm hoping some experienced dredgers will objectively critique.
By Tom Slick
So last week I'm watching Freddy Dodge's Gold Mining show and he calls his friend, a "nugget detecting Expert" to come check out a claim to see if there is any large gold to be found. She takes out her Garrett Apex and proceeds to find close to a 1/4 oz nugget. That's it, I'm selling all my other detectors and getting an Apex.🤣