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Frustrated F75 LTD

Find a clear spot to ground balance. Then manually gb. Run. De mode sense 70. Tones 2f. Disc 10. Best way to run for the first couple weeks before you gb hold the unit about waist height select the channel with the least chatter. Then process to man gb. I hsve never found a site that I had to drop the sense below 65 with the 11 in coil. If you have both the 11 in and 5 in tty the five. Make sure the connector is finger tight on the box as well HH c t. PS. Do the reset first to clear any notch mess
 
Well I had a chance to swing it a little more yesterday evening and I kept getting high repeater ping that would all of a sudden disappear. Tried digging a couple and got nothing from the hole. None were exceptionally high in the sound note like a larger object. Could this be rusty iron? I still need to do the reset and try it out. I was running in DE and Sense about 50, Disc 5 Notch 1 Tone 3H. GB was about 60 I think. With the 11" coil. I'm going to remove the SunRay probe and attach the coil directly to the machine next time. I wonder if something is weird with that connection. Probably not, but something to test out. I do bump the toggle to probe sometimes by accident.
 
Last night I when to a newer type school near home for some fun with the F 75 SE. The school I am guessing is only twenty years old. so little chance of finding silver coins. I had about an 45 minutes before it would get too dark. I went to the rear of the school but too many people hanging around so I went to the from main doors. Sounds like your problem is you are hunting where there are few targets.
Last night I set my
Sensitivity at 20
Discrimination at 23 - to cut out the Foil or aluminum
Notch at 1
Tones at 4H
Process at pB (power Boost)
Ground balance is something you should do and my number would mean nothing to you because every location can be different. You need to find your locations GB.
I used my 5" coil as usual and my Grey Ghost Head Phones. Are you using head phones?
I ignored any signal that that bounced around more than 5 points and concentrated on any sound at the highest tone to inspect the numbers on the display.
I also had to have a repeatable signal testing a where I stood then at 90 degrees. ping, ping ping.
I then pulled the trigger to pin point the object. I moved the coil around until I got the lowest number and highest tone. That marks the spot.
I then pulled out my Garret Pin pointer and tested the spot. 90% of the time I got a signal and zeroed in better then dug in.
I only concentrated on 78- (Copper pennies or Clad Dimes) and 83-84 (Clad Quarters)
I came away with 4 Quarters-3 Dimes- and one Copper Canadian Penny. All were 1" to 5" deep. I could tell this place was never hunted by the age of the coins.

I would suggest you try the above settings, and got to a tot lot with a lot of targets Maybe take a hand full of pennies and scatter them in the tot lot or on your lawn. Hunt them down so you get some quick easy experience.
HH
 
stryker
I advise against BP. I don't understand the fascination with running in Bp when you're attemting to learn the machine--that's like trying to learn to drive with the gas pedal firmly on the floor and controlling it by which gear you're in.
It took about 2 months of using the 75 for it to train me to understand that you aren't going to make it run the way you want. It will tell you how it wants to run and you will either obey or have a frustrating outing. If you want to be frustrated put it in JE with Bp and disc at 4 and go have a ball. :) Read the manual about Bp ---it's for special circumstances and learning isn't one of them--much like the cache mode.
Stay in factory settings with reduced sens. until you are comfortable with the basics and work the sensitivity up until it becomes noisy and then back off until it's comfortable. GB and FeO3 meter will tell you the degree of difficulty you're going to find with your ground. 3 or 4 tone ---Delta pitch is very disappointing. A GB of 60 is good but you could also have very high mineraliztion on the FeO3 meter which you need to watch.
If you hunt a tot lot with a disc of 23 you will leave all the small gold rings and stud ear rings behind along with the stones they hold --they run as low as 17 /18 or less. In a totlot you should dig all the low numbers including the foil. When I find a totlot with nickels and foil , I know someone didn't detect it very well before me.
 
sprchng said:
stryker

It took about 2 months of using the 75 for it to train me to understand that you aren't going to make it run the way you want. It will tell you how it wants to run and you will either obey or have a frustrating outing.

This is like one of the greatest statements I have ever read since I picked up my F70.
Now stop putting stuff like this down in public forums or people will actually start to keep them longer and actually try to learn them instead of getting frustrated quickly and selling them to us at fire sale prices just to get rid of them.
I hate paying retail.
 
sprchng said:
If you want to be frustrated put it in JE with Bp and disc at 4 and go have a ball. :).

This statement is confusing, especially to a new user.
You cannot use JE and BP at the same time. One must choose one or the other. Maybe it is a typo on your part.

My suggestion of using BP process at a Sensitivity level of 20 is very tame and easy for a new user. It seems the new user has not found a coin yet.and needs practice.
Try the settings I suggest and report back your experience.. Thanks
HH
 
It took about 2 months of using the 75 for it to train me to understand that you aren't going to make it run the way you want. It will tell you how it wants to run and you will either obey or have a frustrating outing.

I prefer to be the one to tell my detector how it will run that is why me and the F series never got along I'll bet.
 
Southwind said:
It took about 2 months of using the 75 for it to train me to understand that you aren't going to make it run the way you want. It will tell you how it wants to run and you will either obey or have a frustrating outing.

I prefer to be the one to tell my detector how it will run that is why me and the F series never got along I'll bet.

I replaced the 75 with a Deus :)
 
I guess just getting rid of the F75 is one way to go and I understand how confusing the F75 can be. When I got my first Ltd I was having some of the same problems that have been talked about above. I sent Dave J a PM and ask what I could do and he suggested I run one tone or 1F for a while. I wish I would have keep his reply just for times like this. But I did run one tone and it helped. But after a while I went back to 3 tones and kind of understand now that the machine is trying to tell me by way of tones what all it is seeing in the ground.

Now I am pretty much a coin hunter so I am listening for a little bit of high tone. So lets say I take a swing and get some low, medium, and some high tone. Well that gives me is a clue that the machine may have got a glimpse of a coin. So I repeat several swings to see if I can clean it up a little bit. Now I start watching the meter and if I can get a high tone I watch for good coin number and a few bars on the confidence meter. So if you can get a hint from all three you can be pretty sure you got a coin hiding down there.

So if you are trying to run 2, 3, or 4 tones keep in mind that the machine is trying to break up all the targets it sees in the ground into one response, which makes for some pretty bad music.

Now for me I kind of think of each mode of operation a different way to hunt, not a better way.

I don't hunt in all modes so I am not going to try and explain what all could be used for.

DE mode, all know that the processor is very fast in this mode and the swing speed will mess with the depth. So for high speed hunting I this is the way to go, med sweep speed will get you down at least 3 or 4 inches ball park, a little faster sweep speed should get down a couple more inches.

BP mode, sweep speed doesn't do much for you here except in the trash you need to go slow. For me you will get really good depth and can kind of move at your own pace. I run this mode a lot.

JE mode, I don't run this mode a lot but I have played with it just to see what it does on some small gold target. One thing I noticed is that you can detect smaller items at higher disc settings than other modes.

CL mode, the word here is slow and real deep. I haven't used it that much but I keep it in the back of my mind.

Just some of what I have found out about the different modes, just test them and see what they will do and then think of some way you can make it work for you. Keep in mind that you may have features on the F75Ltd that you will never need or use.

I am not trying to come across as a expert, but I have using the 75 for 3 plus year and I am pretty comfortable with the machine.

Ron in WV
 
I ran the 75ltd for nearly two years and really didn't like parting with it but felt the speed of the Deus and it's versatility made it a better choice in my area. The 75 never liked my dirt with all the fragmentary iron and magnetic soil. It is a tot lot killer however that found me alot of jewelry there and I never used JE because even the tot lot sand and chips ran above 85 GB and if you dropped a magnet in the sand it returned a fuzzy black ball.

The 75 is the detector I loved to hate but hands down , it's the nicest to swing. All sorts of technical physics of momentuum went into the design and balance of it and it shows. The Deus is almost half the weight but doesn't swing as well. The 11" elliptical coil can push right up to metallic structures and search around them with a slight drop in sens. which other machines can't do as well---and still see small targets. You can cover alot of ground with it if that's your thing.

It's a frustrating machine , mainly because of it's extreme sensitivity more than EMI, and it begs to be let out to run---unfortunately there just aren't many places here that allow that.
 
Thanks for the additional input. I know I'm still learning on it. I've got to get used to the way it wants set up. I do get a lot of EMI usually at the sites we hit. I know there are deeper targets in those old yards. I've already found a couple. I took the Sunray Probe off in case that was causing any issues with the throughput. Figure I have 2 Garrett Pro Pointers so why put the sunray into the equation. As for the fire sale as mentioned above, I got mine for around $550 if you take into account the brand new probe it came with. So I guess someone decided it wasn't for them. I'll learn it in time, just figured there were users out there that could give advice.
 
Just a thought it may be worth sending it back to FT for a check up, could be that you got such a good deal it could be that it has problems. I got ripped off on a 1270 like that and had to pay $130 or so for repairs. Didn't like that but mine did need repair and I felt better about the detector when I got it back.

Ron in WV
 
Have to agree with WV62, he's giving you some sound advice, but you might consider using 1F tone till you get used to the F-75, I'm not crazy about how noisey it can by ,but in time you'll be able over come that, I do mostly old buildings and foundations and I only use 1F & 4 tones because if there is not a lot of trash you can pretty much understanding the tone with the ID #, you should be digging anything over a #20 cause 1F is going to give a low tone on Iron and I use 4 F because at upper 50's I get a medium tone and its Indian Head pennies, also I don't use BP at foundations unless it's pretty clean and you have to slow down,JE mode works great for me. WM62 might be right about sending her in to Fisher 35 SEN. all the time to me is not right, I'm rarely lower then 85 in NJ.It can be a unstable machine.
 
There no bad setting, pretty safe, I'd bring the SEN up till she seems noisey then back her down till stable.
 
Again your advice is dead on Ron.I play the same game with awesome results.
 
WV62 said:
Just a thought it may be worth sending it back to FT for a check up, could be that you got such a good deal it could be that it has problems. I got ripped off on a 1270 like that and had to pay $130 or so for repairs. Didn't like that but mine did need repair and I felt better about the detector when I got it back.

Ron in WV

This is a good idea that I agree with--there were lots of stories about units returned and the most recently promised model from Fisher is a new design of the 75ltd with less EMI issues. I returned the first unruly one I had and received a much more refined one from the factory. It would be nice to compare yours with another but there are so many variables , a true comparison is very difficult not to mention finding another to in your area. Call Fisher and talk to their techs---they're very helpful.

Unfortunately repairs could be costly. The biggest chink in Fisher's armor is their non transferrable warranty---I think they're the only major manufacturer that takes that position
 
Well I'm not thinking it's in need of repairs. Seemed almost unused when I received it. I think it's just the noise. I've found items with it and they sounded good. It's much like my AT Pro with jumpy numbers. Something might sound good but ends up iron. Just going to give it some time and see how it pans out. I just shelled out lots of money and can't really take another "repair" bill. Let's face it, if it goes in, they're going to find something to fix.
 
Give Felix a call and explain all the noise and your frustration with your machine. He is a good guy and wants satisfied customers and a call will not cost you anything .
 
F75 has been being refined, and tested around the world for over a year. They have added some iron volume control along with a new faster process and [size=large]DST= digital shielding technology[/size] written into the software to help fight EMI enabling it to be run hotter and quieter.

Will also allow the tone pitch to be carried over from the am mode. I hope ms will remain the same and this will be a rolling change.

They will offer upgrades to existing units ( Some for sure) but do not have all the details ironed out yet on this program and how it will work with [size=large]warranteed and non warranteed units[/size]. They may only offer upgrade on units still under warranty..... Either way will be attractive to current F75 owners if under warranty in my opinion. :bouncy: I am looking forward to the new release ..Thought I would share what I have learned.

As far as I know a price has not been set for the up grade on current F-75's... If I know Fisher it will be affordable...
 
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