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Help with F75 LTD settings

soky72

Member
I was curious what setting you relic hunters use for optimum depth. I will be hunting in good soil, little trash, so I will be digging every target. Do you use fast grab to GB or do you do it manually? Do you use boost process or all metal mode? What tones do you prefer???
 
To start out I would suggest using 4h tones,DE mode, find the quietest frequency and then manually ground balancing it. Once you get that mastered then try using the boost mode. If your trying to push the machine before you understand what is going on you will actually lose depth.

Hope That helps!
 
optimum performance would be monotone....or 2f, not multi tones.....especially for relic hunting. BP will trump DE pretty much every time, unless your hunting in salty soil. It will not matter if you fast grab or manual Gb...as it will end up the same. The only time you'll really need to manually GB is at saltwater beaches..............or if you want to bias your Gb settings. A few guys bias GB a bit positive......and while it does make the machine a tad quieter......it will not improve performance. If you have previous F75 experience......leap right into Bp mode and dont look back. If not..........spend a bit of time first in De to get the feel of things.
There is no real performance advantage to using all metal over Disc modes.....unless you hunting in Fe rich soils. Disc is just as deep as All metal.........but with better resolution!
 
All metal, of course, is good, but I still like the boost mode, high as possible sen. with 0 disc and 2 F tones. 2 F tones will still let you hear everything in the ground and you can make the determination on digging the low iron tone. I personally use fast grab just about everywhere but in the wet sand. HH jim tn
 
jim tn said:
All metal, of course, is good, but I still like the boost mode, high as possible sen. with 0 disc and 2 F tones. 2 F tones will still let you hear everything in the ground and you can make the determination on digging the low iron tone. I personally use fast grab just about everywhere but in the wet sand. HH jim tn

When you say "all metal is good, but I still like the boost mode" are you saying the bp process is not active in all metal mode? I am new to the F75 LTD myself. I am relic hunting in moderate to bad ground in Northwest Ga. Been using bp, all metal, 1 tone, 92 sens.. Have to ground balance often. I have used a bunch of machines over the last 30+ yrs and always seem to migrate back to Fisher, (started in 1978 with VLF 441). Any suggestions will be appreciated.

Barry
 
These guys are right about 2F. Prolly the best for relic hunting. I use 4h because i mainly coin hunt. Great bunch of guys here to learn from!
 
Motion all metal is a mode of its own, is very sensitive and the deepest for relics and coin size targets. I like the disc. side of the menu as I can select tones and the B P mode is very deep. Many relic, and coin hunters for that matter, run in all metal. HH jim tn
 
Jim tn it sounds like your saying all metal mode is the deepest just without the discrimination. I'm digging everything at these sites so I want the deepest. I've read some relic guys say they hunt in all metal mode at the DIV's but I figured it had something to do with their poor soils. Maybe its just the deepest?
 
if you switch from one of the boost processes to All metal...............then All Metal wil be in Boost too. Switch from one of the other processes to AM and it will be regular AM. Short answer.....................yes........you do have boost in AM of you choose AM from a Boost process.............
 
All metal is used primarily at DIV's due to the nature of the soil. VERY hot......... (FE rich) All metal (with any VLF in hot soil) will nearly always trump disc mode, although you will find places there where disc "may" be the mode of choice. I find that All metal is not any deeper than disc mode in good soils......and as I said above..................there is a fair amount better resolution in disc (read separation)
All metal will provide better depth in difficult soils, but in most soils.......you may actually get better depth in disc IF its set up right.




bg64vw said:
Jim tn it sounds like your saying all metal mode is the deepest just without the discrimination. I'm digging everything at these sites so I want the deepest. I've read some relic guys say they hunt in all metal mode at the DIV's but I figured it had something to do with their poor soils. Maybe its just the deepest?
 
I sounds like you hunt pretty much like I do. When I hunt very old colonial fields....where targets may be very very deep....................I hunt in 2F too, but dont just dig everything that high tones. You will find that good targets on the extreme edge of detection will initially sound like iron (low grunt).....BUT, if you center over the target, and reswing............you'll hear a little sweet spot in that grunt. 99% of those targets are GOOD ones..........."just" on the edge of detection. I've dug coppers at 15-16 inches doing this.
 
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