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F75 setting for relics
- Thread starter NYRaider
- Start date
I've used the F75 pretty much the entirety of my relic hunting career. I've tried other machines, but somehow always find my way back to it.
I hunt CW relics in VA also, but mostly around Richmond where the soil is mild. There are major differences between my soil and yours, but I'm happy to give you some tips on how I use mine...
I run it hotter than Mila Kunis.....
BP Disc mode mostly always
Disc 5
Sens 85-99 depending on emi
Notch on 1
2 tones
Fast grab ground balance then switch to all metal side and add 3
Threshold (all metal side) 2+, this is the only setting that carries back over to disc mode from all-metal (per tech at Fisher)
Start with that in good ground. Culpepper has some nasty soil. Many F75 users in that area run in all-metal with max sensitivity and dig every repeatable signal. Due to the mineralization, good targets, at depth, will sound like iron. Pretty much anything deeper than 6" or so, sometimes shallower, will give a low reading in hot soil. Get used to digging ever target, at least the top couple inches. After you open up the hole, and peel back the top layer, the targets should sound better.
Hope this helps. Happy Hunting! -Wolf
I hunt CW relics in VA also, but mostly around Richmond where the soil is mild. There are major differences between my soil and yours, but I'm happy to give you some tips on how I use mine...
I run it hotter than Mila Kunis.....
BP Disc mode mostly always
Disc 5
Sens 85-99 depending on emi
Notch on 1
2 tones
Fast grab ground balance then switch to all metal side and add 3
Threshold (all metal side) 2+, this is the only setting that carries back over to disc mode from all-metal (per tech at Fisher)
Start with that in good ground. Culpepper has some nasty soil. Many F75 users in that area run in all-metal with max sensitivity and dig every repeatable signal. Due to the mineralization, good targets, at depth, will sound like iron. Pretty much anything deeper than 6" or so, sometimes shallower, will give a low reading in hot soil. Get used to digging ever target, at least the top couple inches. After you open up the hole, and peel back the top layer, the targets should sound better.
Hope this helps. Happy Hunting! -Wolf
WV62
Well-known member
The Wolf said:
I am not a relic hunter but Wolf you made a interesting comment, on the threshold carrying over to the disc side. I hunt pretty much in disc for coins and always looking for something that may improve on my finds.
I am wondering if threshold setting is actually working in the disc mode or maybe just in the pinpoint all metal mode?
If you have any more details, I would love to hear what you have to say.
Thanks,
Ron in WV
going field hunting. what would you set it for? I am going to use the Tornado coil on my f75. The tornado coil (On etrac) has pulled my best finds ever this year. An 1822 half and a 14K gold ring 10 grams. Also found a 18884 dog tax tag and sold it on ebay for 50.00. That tornado has paid for itself twice over this year. Found a 1901 Indian in a yard that has been pounded over and over. Think the F75 will be better for field hunting than the e-trac.
NYRaider said:
In hot soil you can forget about BP process---coil will be shut down. 5 bar soil ore higher....
Better to use JE or DE processes.
And you had better overlap your sweeps a great deal. Reason: Coil hot spot is real small.
Even hunting in milder 4 bar ground and using BP process with stock coil----coil hot spot on medium to higher depth targets-------about the size of a golf ball. In 4 bar soil switching to JE or DE process the coil's hot spot is bigger but with those 2 processes in 4 bar ground you will lose some depth.
Coil swing speed is also more sensitive. Even in 4 bar ground running BP process--many times on a too fast a sweep you may get a questionable tone---resweep and the tone will be better.
In the hot stuff---it goes without saying AM is where you will get your best depth.
In 5 bar soil---a 3 ringer bullet may only be recognizable tonal wise as a nonferrous to around 6".