on an american site I belong to someone who had a serious EMI problem on the beach came up with the novel idea of covering the control with kitchen foil. It worked!
another contributor said:
"I...
this was answered on 'Detectorprospector' some time ago
so it's easier to just use the reply from there:
Park 1: General / Coins
Park 1 is optimised for modern coins and larger jewellery with a...
in my opinion it's far better to get to know the machine and make adjustments according to the field you are in. All these so called programs are only changes to the original programs from the...