Anyone beleive that recovery is faster running 2tone on the f70?

[gates21]

I have been working the fields with the F70 and like it much more than the Explorer. Don't get me wrong, I LOVE my Explorer, but when your digging everything that is non-ferrous, having a lighter, faster detector makes a big difference. I have been hunting in all metal, 2 tone with the sens. anywhere from 60-85. My question is, do you beleive that I will find more non ferrous targets that are located close together if I run 2 tone instead of 3 or 4 tone? My thought was the detector would process signals faster if it only assigns 1 tone to iron and 1 to non ferrous....maybe i'm crazy

I also have been getting what I would consider to be rock solid signals, I dig or flip the dirt and they totally disappear. I have been detecting long enough to know what most iron-falses sound like, but the F70 has been tricking me, any thoughts?

Thanks
Aaron

 

[tony (Orlando FL)]

Hi Aaron,

I am not sure about the tones, I use em all except the one that assigns a tone to each ID. I kinda settle into the one tone setup and then jump over to 4t for a while.

About the disappearing targets, can you pinpoint them before digging? Is the ID the same on all of the ones that disappear? How about the sound, is it weak, yet still fully audible? Kinda like an empty sound?

Have you switched to the AT mode to see if you can locate the target ?

When you lose it, perhaps dig one or more additional scoops of dirt out of the hole, it may still be down there and the 'halo' may have been disturbed now not allowing the item to be heard.

Sometimes, iron as dumb as that metal is, will play that game with me if I have the F70 maxed out on sens and threshold.

Hope you figure it out

 

[Steve from Ohio]

I have tried running two tones and have been doing some testing in that regard. So far, running two tones, at least from what I have found, is not any faster than running any of the other tones.

The F-70 is really fast no matter what the tones and while it MAY be faster, I cannot sense any difference at all. Maybe it is, but it is so slight that I cannot notice it.

I have noticed that in the SL speed, the machine does slow down quite a bit. I guess that is to be expected. I can really go deep when in the SL mode but I must slow down my swing into the same swing speed as for my Explorer which is a great machine, just a whole lot slower and quite a bit heavier.

As far as the phantom signals, not sure about that. I have noticed that zinc pennies leave quite a halo and it may be possible that the pennies have dissolved and left a halo of zinc and copper. I have noticed quite a few zinc pennies that are almost gone and hit my detector really hard. It is almost that you could not recognize what it was when you dig them. When I dig up those, I have noticed that they are strong at first, but after disturbing the dirt, the halo ends up being broken apart and no longer can be detected as strong and sometimes not at all. Am I saying that is what you are finding? No. But it could be.

 

[jimmyk]

I've seen with other detectors (MXT) where a good signal would disappear when you dig the plug. I usually take out some more dirt, check with my probe, and more often than not, the item is deep in the hole, and is usually good. This has only happened with lead bullets while relic hunting. Something about disturbing the soil seems to make that happen on smaller bullets.

keep on diggin'

jimmyk in Missouri

 

[dahut]

I'd agree with these xperts- either you've disturbed the soil and a highly corroded item along with it, or the item has fallen deeper into the hole.

One of the nice things about relic hunting is you dont have to be real careful about the diggin'. It's more like an earth assault than a dig.
When the dirt goes to flying, your target can end up anywhere. Sometimes the target falls deeper back in, and occasionally it even lands a few feet away if youre really enthusiastic. I see that when one of those entrenching tools are used in the half open position.

But I would suspect that iron is the main culprit. It has corroded out and left its halo in the ground which you then break up with digging. If I suspect iron, I usually go into the AM mode to see if the target gets broad and round. Non-ferrous items tend to remain narrow and sharp in their AM response, while iron appears to get bigger.