REVIER
Well-known member
I have had some great success hunting an iron infested old farm house site this summer using what I call high power blast trough settings on the F70.
All metal and all settings at max looking for any numbers or blocks of higher than iron numbers showing up at all that don't seem to be false high tones thrown off around the perimeter of rusty iron.
I learned my lessons well and soon enough started to dig more non ferrous targets than iron and avoided most iron trash using several different coils.
Even when I chose to dig iron they usually were pretty good ones like some interesting fixtures and the 6 pocket knives I have found so far.

As well as this was going I always try new things and I wondered if there was an even easier method to hunt iron infested sites.
The answer was yes, Nasa Tom posted about it long ago.
Mono tone, disc at 4 or below, thresh and sense as high as you can get it with as much chatter as you can stand or as little as you feel you need to make it bearable...or non at all if that is what you choose.
I was in 1 tone, DE, 85 on the sense, -2 on the Thresh disc on 1 and no notch and this thing ran pretty darn quiet at this site for me.
The last time I visited this site I used his method and effortlessly plucked out another good one in an area I have scanned over and over but this time with way less jumping and way more stable numbers and tones than that high power method...by a large margin.

Not unhappy I did it that first way for so long, I just figure I now learned and know more than one way to hunt heavy iron infested sites which can't be a bad thing at all.
My club is going to be hunting another old site this month that is usually off limits and there could be a bunch of iron there so for the last few hunts I have been practicing using that one tone method pretty much exclusively and I am happy to say this seems to be one of the most stable, quiet and quality info producing methods I have used on the F70 so far.
Today I was near one end of a park right next to power lines that drove my F2 a little nuts on high power and even my usually stable and quiet Compadre would talk to me a bit in this area, but to my surprise the very powerful F70 stayed quiet, amazingly quiet, actually.
Who knows, this is the kind of thing that might just turn into my usual hunting settings but I have more sites to hit and more experimenting to do.
Anyway, I left the house this morning and I told the wife I was off to find some gold.
Nothing unusual, I always say that, but it has been a few weeks since I found my last gold ring so that gold fever is starting to flare up again.
I hit this park that is pretty old and trashy and even though iron isn't a huge problem here can slaw, foil and tabs of all kinds are, but these settings seem to work well at sites like these, too.
I was walking back to the truck after finding some clad in this short hunt but no gold and came across this signal that was foil all the way...a pretty stable 23-24 on the F70 and the big DD coil.
Trash that jumps more than 2 or 3 numbers, especially if it does that or changes to other numbers when I turn and hit them from another angle I leave in the ground, all targets that don't change and stay within that 2-3 number range I dig every time no matter where they come in.
This one stayed at 2 numbers, never wavered, sounded strong so it had to be dug.
I still expected a small piece of can slaw or some foil, but once again I was surprised as I have been every other time I have dug gold.
About 3" deep I see this small round edge and it ain't no foil and it is gold in color.
Cleaning it off I see 14kp...plumb gold and even higher than 10k so I am happy.
I had that big coil mounted, I was not on low sense and this was surrounded by a bunch of trash so I have high hopes that this 1 tone system might just turn out to be a pretty good one in future hunts.
As always, more experimenting to do but we will see.
1.3 grams of yellow goodness and number 5 for me for the year.
Thanks Tom...I credit this one to you!
All metal and all settings at max looking for any numbers or blocks of higher than iron numbers showing up at all that don't seem to be false high tones thrown off around the perimeter of rusty iron.
I learned my lessons well and soon enough started to dig more non ferrous targets than iron and avoided most iron trash using several different coils.
Even when I chose to dig iron they usually were pretty good ones like some interesting fixtures and the 6 pocket knives I have found so far.

As well as this was going I always try new things and I wondered if there was an even easier method to hunt iron infested sites.
The answer was yes, Nasa Tom posted about it long ago.
Mono tone, disc at 4 or below, thresh and sense as high as you can get it with as much chatter as you can stand or as little as you feel you need to make it bearable...or non at all if that is what you choose.
I was in 1 tone, DE, 85 on the sense, -2 on the Thresh disc on 1 and no notch and this thing ran pretty darn quiet at this site for me.
The last time I visited this site I used his method and effortlessly plucked out another good one in an area I have scanned over and over but this time with way less jumping and way more stable numbers and tones than that high power method...by a large margin.

Not unhappy I did it that first way for so long, I just figure I now learned and know more than one way to hunt heavy iron infested sites which can't be a bad thing at all.
My club is going to be hunting another old site this month that is usually off limits and there could be a bunch of iron there so for the last few hunts I have been practicing using that one tone method pretty much exclusively and I am happy to say this seems to be one of the most stable, quiet and quality info producing methods I have used on the F70 so far.
Today I was near one end of a park right next to power lines that drove my F2 a little nuts on high power and even my usually stable and quiet Compadre would talk to me a bit in this area, but to my surprise the very powerful F70 stayed quiet, amazingly quiet, actually.
Who knows, this is the kind of thing that might just turn into my usual hunting settings but I have more sites to hit and more experimenting to do.
Anyway, I left the house this morning and I told the wife I was off to find some gold.
Nothing unusual, I always say that, but it has been a few weeks since I found my last gold ring so that gold fever is starting to flare up again.
I hit this park that is pretty old and trashy and even though iron isn't a huge problem here can slaw, foil and tabs of all kinds are, but these settings seem to work well at sites like these, too.
I was walking back to the truck after finding some clad in this short hunt but no gold and came across this signal that was foil all the way...a pretty stable 23-24 on the F70 and the big DD coil.
Trash that jumps more than 2 or 3 numbers, especially if it does that or changes to other numbers when I turn and hit them from another angle I leave in the ground, all targets that don't change and stay within that 2-3 number range I dig every time no matter where they come in.
This one stayed at 2 numbers, never wavered, sounded strong so it had to be dug.
I still expected a small piece of can slaw or some foil, but once again I was surprised as I have been every other time I have dug gold.
About 3" deep I see this small round edge and it ain't no foil and it is gold in color.
Cleaning it off I see 14kp...plumb gold and even higher than 10k so I am happy.
I had that big coil mounted, I was not on low sense and this was surrounded by a bunch of trash so I have high hopes that this 1 tone system might just turn out to be a pretty good one in future hunts.
As always, more experimenting to do but we will see.
1.3 grams of yellow goodness and number 5 for me for the year.
Thanks Tom...I credit this one to you!