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F70 Test Madden Run

J

JaWi.

Member
Went out to give the 70 a try for a hour. Local trashy park 82 cents and a little can slaw. Set it up -3 threshold sen.70 tried different tones. I can tell this is a different detector than my MX5 or Tesoro for sure. Will take sometime! I did alittle test with the 3 detectors with a nickel, dime and quarter just laying on clean ground with stock coils. Seemed the F70 had alittle more depth. I put the 70 in the sl.mode and tested. Wow! Seemed to have at least 2-3 more inches in depth. Very impressed with that. My question : is this a good mode to hunt coins in? I think it will be a keeper once I learn it. Any help is welcome. Thanks Joe
 
JaWi. said:
Went out to give the 70 a try for a hour. Local trashy park 82 cents and a little can slaw. Set it up -3 threshold sen.70 tried different tones. I can tell this is a different detector than my MX5 or Tesoro for sure. Will take sometime! I did alittle test with the 3 detectors with a nickel, dime and quarter just laying on clean ground with stock coils. Seemed the F70 had alittle more depth. I put the 70 in the sl.mode and tested. Wow! Seemed to have at least 2-3 more inches in depth. Very impressed with that. My question : is this a good mode to hunt coins in? I think it will be a keeper once I learn it. Any help is welcome. Thanks Joe
Click to expand...


Depends on the site conditions and what you were going for and the depth you looking to hit.
I rarely use SL looking for coins at normal depths, but there are exceptions.
I discovered I could use SL and all the other settings blown out to find silver in the site that was absolutely loaded with iron .
This took time in some experimentation but I finally figured out what this thing was telling me with the crazy activity I saw on the screen and heard in my headphones .

You have to understand that there are so many settings possible on this thing and each one can do something for you good or bad .
After hunting with this thing for about a year and a half I truly believe that there are settings that this thing has if you can find them that can handle just about any site out there.
It is up to you to figure out the best settings for your site and your conditions in your area .
We all have our favorites around here and they all seem to work for us when we understand how they actually affect our detectors .

Do a search here about F70, settings...lots will pop up and I am sure a few hunters will pop in on this thread with their opinion and settings.

Here is what I did at that iron site using SL, DE probably would work just as well but I got used to using SL and just got comfortable with it.

http://www.findmall.com/read.php?91,2093783



Then I switched to DE after using SL for awhile and I could really see what the faster processors can do.

http://www.findmall.com/read.php?37,2093086,2093086#msg-2093086


In my opinion faster processing in trash works better most of the time and still gets deep but SL does have it's advantages too.
Get out, swing, experiment and learn.
Eventually it will all come together for you.
 
If you just want to shoot for coins, I found that the default settings work just fine for my soil and I find coins no problem down a good 7" with the stock concentric coil. I'll admit I havent't experimented much with too many settings. I have found that sensitivity will affect depth and at 60% that's about as deep as I feel comfortable digging in my parks. With the Thresh at -3, I find objects as small as a ball bearing. That's small enough for me. There is no gold nuggets where I'm hunting!!

I'm still hoping someone will post a video of this "coil hopping" technique I have read about for ID'ng bottle caps and sure fire ways of ID'ng a soda buried can down ten inches. Once I master that, I'm good :blink:
 
diggindad said:
I'm still hoping someone will post a video of this "coil hopping" technique I have read about for ID'ng bottle caps and sure fire ways of ID'ng a soda buried can down ten inches. Once I master that, I'm good :blink:
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I first heard reference to the coil hopping technique made by Mudpuppy some time back and didn't really see much benefit at the time. I think coil hopping is more of a DD coil thing. I have the 10"elliptical coil on my 70. I picked up another detector a while back in a package deal that has a 8"x10" DD coil and now I know about the bottle cap and DD relationship. DD coils, as you know, ID's caps just under the clad quarter and are easy to recognize once you know the language. Hopping that DD coil on the bottle caps for me helps find that iron grunt and scratchiness on certain clean modern caps that are good at trying to make you think they are quarters. Mud also uses Delta Pitch tones which gives off a louder volume on shallower targets than deep ones. That coupled with the bouncing of the DD coil around the target area until you locate the loudest response, will eliminate having to pinpoint. Sometime on certain targets suspected to be trash, I will bounce the Elliptical coil while rimming the exterior or doing the wiggle as some call it, searching for that iron grunt but with no consistent success. That works better with my coil when you have a broken off beaver tail tip trying to tell you it's a nickel. They will drop to a 28 most of the time. But that is just me. I maybe half crazy, who knows, my mother never had me tested :crazy:
As far as the soda can thingy, usually that 10" deep can will register close to the quarter range at 2" to 4 " depth. All I do is use my pro pointer. At 2" you should be able to get a signal from the surface of the ground over the target. If it is 4" or more I make a slit in the ground with my digger and pry back and fourth creating an opening wide enough to get the pro pointer as deep as I need to. If the coin is not near to where it is suppose to be I move on. Also by raising the coil so target is just within range a buried can will display a wider target than a coin will.
JaWI Don't be afraid to turn your sensitivity down if you get a lot of falsing. I use default speed in my discrimination mode in program 1 and slo in all metal for program 2 with sensitivity set at 99 and threshold set to 0. This is where I ground balance and switch to from program 1 to better ID very deep targets. Hope this helps-----IB
 
Thanks IB, any pointers that help me master my beloved F70, I'll read and try!

I was using the stock 10" coil exclusively until just a couple weekends ago when I added a NEL sharpshooter to my arsenal and at the same time started experimenting with the 5" puck. Both of these coils are DD and I see now how differently they behave when identifying bottlecaps. On the concentric coil, the number will bounce from 80-88 and that's usually a sure sign its a BC, but on the DD coils I get 80-84 which is a dead ringer for a quarter on the concentric.

As for cans, I try to lift the coil off the ground till I can't hear it anymore. If I lift my coil say 12" and it is still sounding off, I know its something bigger than a coin. This is not definite though and I find myself digging these quite often. I also try to judge the size of the target by pinpointing, but that doesn't always work either. This weekend for example the ground I hunted on was so mineralized, it was near impossible to find a clear spot to ground balance, so pinpointing was extra tough. Cans were tricking me left and right :blink:

diggindad
 
diggindad said:
This weekend for example the ground I hunted on was so mineralized, it was near impossible to find a clear spot to ground balance, so pinpointing was extra tough. Cans were tricking me left and right :blink:

Here is a great little trick I picked up from a post Mike Hillis had on for an F5 users. This works well with the F70 also. If you push pin point over a non target area and get a depth and target audio you are out of balance. Out of balance to the positive numbers adds false iron grunts along with your overall signal. I use the iron grunts in my hunt to tell me about false high tones from rusty iron. If we get false iron grunts from mineralization we would have the tendency to overlook a good high tone that is deep and not solid because of its depth. In my area that is where the silver hides many times especially in our sandy soils. The parks and yards where dirt had been hauled in years ago you will find treasure a little shallower-----Hope this helps-----IB
Click to expand...
 
Thanks IB! Another great piece of advice to commit to memory! I can't recall if I ever tried this in the field, but I certainly will try it next time I'm out swinging!

Every time I get out there I get more and more confident in myself and my machine. I love the F70 :drinking:

diggindad
 
I agree with you on the lovin the 70. My big DD unit will get a little deeper than the 70 with the elliptical 10" but as far as tone ID and VID the 70 is always my speedy first choice at a new site or to separate the trash. Battery life is another good reason to swing the 70------------IB
 
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