Ground balance number questions

[petew]

On my f75ltd 2,most ground balance for me is in the 60 to 63.one spot it ground balanced at 71,but 99 percent of the time it's low 60s.
Here's my question, I was thinking about a 10 inch conentric coil,is my ground highly mineral considering my g.b. numbers?
I heard the concentric are better for parks,and bottle caps

 

[Elton]

On my F75's the GB #'s was close to yours.10" concentric GB'd really nice, and had great depth and bottle cap elimination.. Worked well on my F70 to..

I liked it better than the 11" DD on the F-75..........

One thing to remember.............. Make certain you GB in clean ground.If you can't just leave GB at Pre-set.. You will do better rather than have a completely bad GB from some item in the ground.....Why I don't know. Unless the pre-set is
mid set some way in factory settings.. It can account for several inches more in depth with either coil having a good GB.

 

[petew]

How do you get a preset ground balance on a f75ltd?
And when you manually ground balance do you do it in all metal,then switch to disc?

 

[jim tn]

The ground balance number actually tells the type of mineralization. The FeO bar graph tell the amount of mineralization. HH jim tn

 

[Elton]

reset to factory specs..Then do not GB machine..Turn on and hunt..

 

[petew]

I thanks elton,and everyone

 

[WV62]

To manually ground balance that must be done from the all metal side, it is a menu item down close to the bottom. When you scroll down to the ground balance it will give you the preset number if you have done a factory rest as Elton suggested. You will find the preset is a pretty high number and if you hunt like that you may have some problems when you go to pinpoint. You may get some ground feed back.

I have had a F75 for 5 years now and I have never seen the need to do a manual ground balance, always been able to fine a clean spot and do the ground grab, ground balance.

Ron in WV