F-75 Standard question

[88junior]

Can any of you guys that have used this machine tell me how it does in mineralized soil? I'm thinking about buying one but was worried it wouldn't handle my red Georgia clay soil.

 

[88junior]

I guess not many on here probably still use these machines due to them not having boost and cache modes. If anyone on here still uses one tell me the low down on them like what's the deepest you've dug a coin or relic. I'm just overly interested in this machine and it's performance.

 

[Charlie P. (NY)]

Have used one since 2007 but my soil isn't very heavily mineralized. Some slightly ferric areas (red clay) in the 65 to 80 range and it does fine there.

 

[Elton]

BUT...Never in the Georgia red clay..... A very deep machine..some emi issues in certain places..... sense set at 40 has found Wheat cents at 7" deep..Maxed out depth has found coins in the 9 to 10" range.

This was in De mode. I have never hunted in all metal... I feel the lower sens settings would have found the coins I found at 9 and 10" deep. Mostly quarters at that depth. 60 sens works great for most coins I hit in my area.. Seems coins are around 7 to 8" deep where I hunted.

I never found many nickles or rings with the F-75..Sure a few nickles and a couple of silver rings but that was it in the areas I detected.. It's a great coin machine..and I would buy another one even though the newer models have more options.......

I liked that I could turn up the discrimination and not dig lower grade conductors.Yet not lose depth with the higher discrimination. That said no matter what I set disc at I still hit early pull tabs ( Early 60 era) tabs and they all hit as a high coin reading.. Some were down to the 6" and 7" level..

PF mode (Plowed Fields) worked in any place I ever hunted that the dirt had been turned...found many, many old coins in a farmers field that had a school on the property in the 1890's... I also dug some iron that hit as a good target in those fields.....

Hope this helps you with basic operation capabilities.... sorry I have no experience in Red Clay dirt to tell you how it worked.

 

[detectingMO]

personally i preferred the ATP over the f75ltd2 and t2se Ive had. Sure they are 1-2" deeper in disc bP and super deep in AM but the ID is pretty crappy. Thats with good dirt. The F19 is better than them all but wish it had more tones.

 

[Coin Rescue Inc]

I never had the standard unit. I think it should be added that....
The audio tones and the VID numbers are separate processes.
When you hunt deep the ID number accuracy falls off and ID numbers might disappear. At that point one needs to rely on the multiple tones.
Also it the desired target (say silver) is all alone the ID numbers are spot on and repeatable from all angles.
If the desired target is next to say an Iron nail the ID numbers fall into lower ranges. Sort of averaging the read out number. In these cases the higher tone can still be heard much of the time.
So putting more emphasis on sound is important too.
I am thinking mineralized soil would require reduced sensitivity to avoid falsing. With all the available adjustments you would think something would work. The F75 is very versatile with many possible settings.

 

[chuck ky]

if the i.d. numbers disappear because of the depth wouldn't the i.d. tone also disappear leaving only one tone for all targets

 

[Coin Rescue Inc]

if the i.d. numbers disappear because of the depth wouldn't the i.d. tone also disappear leaving only one tone for all targets

See below- Explanation From the manual. I don't know why but on fringe depth the ID numbers would waiver and disappear first.
If the high tone changes to low one would not dig or know what thy pass up.
I tested my unit with exposed targets. Set a coin and a nail side by side and test different set ups, Change settings- height of coil and distance between targets and see what you get.
Then apply what you discover to your field trips

Manual

WHAT YOU SEE VS. WHAT YOU HEAR
The visual Target-ID displayed on the LCD is based entirely on sampled processing; the
number displayed represents a snapshot of the target’s identification as the searchcoil passes
over the object. When using these different processes, or methods, the detector’s audible
response may differ from the visual. When using the different processes, there is not a 100%
correspondence between what you see and what you hear, especially on buried targets where
ground minerals influence Target-ID and audible response. By making the audio and visual
systems independent, the F75 allows each system to do what it does best. The audio is
optimized for quick response and target feel, whereas the visual system provides the best
numeric resolution of Target-ID.

 

[c t]

For the most part similar preformance. Almost. The original 75 will loose target id numbers in you're soil maybe 5-6 ins. Tones will be there. But honestly there may be better choices in you're neck of the woods you would be better with an 75se in bp am. That would give you a better shot at hitting 3ringers at 10-11 ins if you can get it at a great price and you were to send it to fisher for an upgrade!!! Otherwise I think you're at machine would do better honestly. OK my friend. Hope you guys aren't freezing down there. HH c t if you're buying local give it a shot in a spot you know test bed etc...

 

[Coin Rescue Inc]

if the i.d. numbers disappear because of the depth wouldn't the i.d. tone also disappear leaving only one tone for all targets

See below- Explanation From the manual. I don't know why but on fringe depth the ID numbers would waiver and disappear first.
If the high tone changes to low one would not dig or know what thy pass up.
I tested my unit with exposed targets. Set a coin and a nail side by side and test different set ups, Change settings- height of coil and distance between targets and see what you get.
Then apply what you discover to your field trips

Manual

WHAT YOU SEE VS. WHAT YOU HEAR
The visual Target-ID displayed on the LCD is based entirely on sampled processing; the
number displayed represents a snapshot of the target’s identification as the searchcoil passes
over the object. When using these different processes, or methods, the detector’s audible
response may differ from the visual. When using the different processes, there is not a 100%
correspondence between what you see and what you hear, especially on buried targets where
ground minerals influence Target-ID and audible response. By making the audio and visual
systems independent, the F75 allows each system to do what it does best. The audio is
optimized for quick response and target feel, whereas the visual system provides the best
numeric resolution of Target-ID.

Here is a video showing how Iron nails next to a coin will lower the overall ID number using 2 tone 2L.
2L is added from the upgrades F75 LTD bur 2F would be the same on the standard F75.
The point here is the tones are more important then the ID number.
3 tone is also a better check on coins.

http://youtu.be/6O4caq07BmE

 

[88junior]

For the most part similar preformance. Almost. The original 75 will loose target id numbers in you're soil maybe 5-6 ins. Tones will be there. But honestly there may be better choices in you're neck of the woods you would be better with an 75se in bp am. That would give you a better shot at hitting 3ringers at 10-11 ins if you can get it at a great price and you were to send it to fisher for an upgrade!!! Otherwise I think you're at machine would do better honestly. OK my friend. Hope you guys aren't freezing down there. HH c t if you're buying local give it a shot in a spot you know test bed etc...

Hey Tom the T2SE I traded you I didn't take the time to learn it. I may have hunted twice with it. I had just switched from a CZ-5 to the T2 and that was like me going to a whole new country that don't speak English. So I traded you for the Minelab you had which is a machine that was easier on the ears and less confusing to learn especially with the help you provided me to learn it. Now I'm using a AT-Gold which is a excellent machine but I'm wanting to try something different after two years with the AT-Gold I know it like the back of my hand and am curious to see how other machines stack up to it. I hunt some thick iron spots with a lot of aluminum foil and can slaw mixed in and the coins that are in these areas are either masked or fairly deep.

 

[chuck ky]

what did you find different from the cz-5 to the t-2. I did the same thing but I thought that the basic set-up was generally the same on both detectors.

 

[88junior]

The audio nuances and I wasn't used to visual target id the T2 was a lot more talkative and chatty.

 

[WV62]

Junior,

I can't say how the F75 will do in your soil, but these 75's kind of get in your blood. After I retired in 2010 I thought I had to have a F75Ltd, and I got one and used it for 3 years and thought I wanted something else and I sold it. I went through a few machines and then by chance I got a deal on std F75 and bought it, and after one hunt I knew I had to have another Ltd. I ordered my second new F75Ltd March of last year. Now you have hear this before, I will never part with my F75.LOL

I feel like you are pretty serious about your detection, if you could swing the deal I would hold out for a Ltd with the boost processor. The extra depth is worth holding out for. The main thing is if you get one don't give up on it to quick, you can get help here and work through the chatter. When I am hunting deep I am in the boost processor.

I will say I think the std F75 will do as good or better than your AT Gold and the Ltd with boost will for sure do better.

Good luck,

Ron