There are a couple of readings that are important in relation to the type of ground your hunting, when you set up your detector.
1) The initial ground balance reading gives a rough idea of the soil type.
There are 5 groups of soil types in this reading.
0 to 10
5 to 25
26 to 39
40 to 75
75 to 95
Most soils are going to read between 40 and 95.
This is in the F75 manual Page #11
2) FE[size=x-small]3[/size]O[size=x-small]4[/size] BAR GRAPH
This bar graph displays the magnetic mineralization factor of the soil.
This is in the F75 manual on Page #21
Having the Ground Balance number by it's self doesn't necessary relate to bad ground, because of the wide lattatude of the reading. One also needs the Magnetite reading from the FE[size=x-small]3[/size]O[size=x-small]4[/size] bar graph.
1) The initial ground balance reading gives a rough idea of the soil type.
There are 5 groups of soil types in this reading.
0 to 10
5 to 25
26 to 39
40 to 75
75 to 95
Most soils are going to read between 40 and 95.
This is in the F75 manual Page #11
2) FE[size=x-small]3[/size]O[size=x-small]4[/size] BAR GRAPH
This bar graph displays the magnetic mineralization factor of the soil.
This is in the F75 manual on Page #21
Having the Ground Balance number by it's self doesn't necessary relate to bad ground, because of the wide lattatude of the reading. One also needs the Magnetite reading from the FE[size=x-small]3[/size]O[size=x-small]4[/size] bar graph.