Coinmaster GT help

[aWaredetector]

I've been hunting the same field for several weeks as each day is turning out some great finds. I have my sensitivity all the way up, until my last two hunts. As of late I have been getting the "overload" signal and not sure why. Like I said its the same grounds I've been hunting all along and never had the ol signal in the past. Is there a problem with my machine ? Can extreme heat and humidity affect it? Please excuse me if these are dumb questions, still new to the hobby.
Thanks

 

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[happycamper08]

The ground is drying out, you will have to turn it down a little. Either that or you are going over something big.

 

[ilovemycows]

Can you elaborate on the sensitivity setting? I got a Coinmaster GT in April. I don't understand the sensitivity adjustment recommendations. Any advice will be appreciated.

 

[XLTer]

To simplify what's happening , detectors are sensitive to coin sized objects up to 7-8 inches in the ground . When you pass over a flattened soda can or large rusted sized object it will sometimes show Silver Dollar . But when you pinpoint , the object is so large and sends back such a BIG signal , most detectors will say OVERLOAD . My XLT does it on soda cans all the time . I you use a probe , it will help you to detemine these bad objects before digging . Hope this helps .

 

[ilovemycows]

Thank you. I have had that happen before. Would you set your sensitivity high, low or mid range? On my Coinmaster the only thing I have discrimination turned off for are nails/iron.