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F75 upgrade

GroundScanner

GroundScanner

Active member
So I am going to do it. I just called Fisher and going to send my F75se out. I think all the bugs may be cleared up by now. I have a 4 year warranty on it and going to purchase the additional 3 year transferable warranty. So if it's going to have any issues it will be covered. I hope this is going to better the machine. ( i.e. EMI ) I have read a lot from you guys that had upgraded , some are happy , some not. But I look at it this way. With seven years warranty ( between those years ) they will make it right. Now the wait. If this upgrade works like I think it will , I am hoping I won't have to get another machine for a while. GS
 
The EMI is all the world "better" in the upgrade. It truly becomes silent search. Whether it's as active at catching the faint/deep targets I won't know until the ground thaws. Looks like maybe August at this rate (4°F outside right now).

I was kind of used to picking the good from the bad in the "detector talk" of my original F-75.
 
i agree they made a good machine a whole lot better, the fa mode and more tone options are cool and its like strangly quiet, a few times i thought it was turned off. i guess were lucky here on the west coast in the mid 60s today hh
 
Well it's sent out this morning. Turn around will be about 10 days I was told. I am hoping the all metal will be the same or better. Fingers crossed. I will bring it back to some spots I have got a 1850 Canada token, 3 cent nickel, 178? Trade token and the Conn. 1787 copper. But I will have plenty of air testing because of all this snow. I have a old house with square nails thru out the floors. GS
 
Well my F75LTD is done and getting shipped back to me today , I should have it in 4 days. I can't wait to test it out. GS
 
GS I sent mine that I bought new in Jan back because it lacked depth in AM. Got it back Tues. It's hitting a nickel/quarter at about 14-15" in AM. 13" in Disc. It was dead even in Disc and AM before I sent it back. So it's a bit better in AM now. It's still not up to par w my camo SE that I sold. I'll live w it because it is a better machine. Super quite now. Good luck on yours.
 
I as well sent mine in January for the upgrade. If I known then what I know now about all metal mode being severely handicapped. I'd kept what I had. Hopefully I can find someone that likes to hunt in discriminate mode to sell to.
 
According to FT there is "no" depth loss in AM.I was told this last week by a guy from FT whose name is mentioned often on this forum. Must be "operator error". LOL
 
No am depth loss if working correctly, mine went back for the 4th trip. Talked to the tech that worked on mine and was told the coil was replaced to see if that would take care of my problem, not because the coil was bad. They said they checked the machine and it was working right so why change coil? Now that the rush on upgrades are over it's going to the engineers to look at. Good luck to all those with am depth issues, this whole process has SUCKED to say the least. :surrender:
 
GroundScanner said:
Well my F75LTD is done and getting shipped back to me today , I should have it in 4 days. I can't wait to test it out. GS
Click to expand...

Second send and return for repairs from upgrade:
Good luck on that 4 days, mine shipped back to me on 1/3/15 and it is still in Texas today 3/6/15. My estimated delivery date is now 3/10/15. I don't know maybe you can't get from Texas to WV, but I can see it has been all over Texas.
EL Paso TX 3/3
EL Paso TX 3/4
Sweetwater TX 3/4
Eastland TX 3/5
Fort Worth TX 3/6

Its not like I need the detector with a foot of snow on the ground, but I would sure feel better if it was in my closet and not in the back of a truck.

First send and return for upgrade:
The trip back went okay all the way to Southpoint Ohio which is within 20 miles of my house and the detector was out for delivery for 4 days. No delivery attempt was made I was home waiting for it.

Still waiting, Ron in WV
 
Reading all this is making me depressed. Lol. I have a tracking # so I will track it. I hope it will be here in 4 days. And I hope AM will be the same if not better. I started using AM before the winter last year and started liking the depth I was getting in my soil with id. If all is good then great. If not back to fisher. I do have a detector in mind that is looking good with good depth and Id . So I can wait till fisher gets it right. GS
 
Sent mine to Fisher on Tuesday 2/24. Fisher sent it back to me on Tues. 3/3 and it arrived here in Mesa, Az today. Total turnaround = 10 days. I figure FedX had it for 6 days and Fisher had it for four (but two were weekend days). Sometimes you just get lucky.
 
So Tom Slick, how did the machine work before the upgrade and after? I am curious. I bought one in Nov of 14, and as I was new to the F75 and Fisher, I thought 5" deep was ok, but after seeing another later sn 75 operate I found mine was pretty substandard. Sent it back to Fisher and got it back to me 3-5. I took it to the exact same workbench I did air tests on pre repair and turned it on. VERY chirpy, and about a 2" drop in air test range. I ran it thru all the options, the 9.0 and 9.1 and found it was basically the same on EVERY mode or option, about a 5" detection on a dime in an air test. So, I took it out to a lot, hunted an grid area with my CTX and detected several coin targets at 6 to 8" indicated. Took the F75 and ran the same targets and never ever got any indication of anything in the ground. Ran it on de, fa, bp, everything and all at 80 sense, 4h, and disc at about 15. Tried it on am and it was basically the same.

With the F75 I dug a penny signal at about 3" and it was a wheat. I then dug the hole deeper and put the wheat penny flat in the hole at about 8", the depth of the Garrett pointer at the base of the battery cap. Scanned the hole with no dirt, nothing, then reburied it and packed the dirt down. Nothing, then dug it and reburied it 3 more times, 6" and 5" and it got nothing at 6, a tiny weak single chirp and numbers all over the screen at 5". Put it at 4", about a half inch below the light on the pointer, and it had a good tone but numbers everywhere. At 3.5 inches or thereabouts it was consistent. Obviously these are not exact measurements but they are pretty close and they

So, whatever was done made it more noisy but less sensitive. If anyone has a reliable set of settings that should produce fairly reliable air and in-ground numbers I would appreciate getting them before I whine to Fisher again.
 
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