F75 All metal depth on 1/15 models

[KIPPERMAN32]

Hi

Just last week recieved my f75ltd back from upgrade...I have been holding back after reading of early problems and sent mine off after new year from here in UK.....Anyway, unit came back like new...new head unit, stems, battery box and new coil...No pinpoint bugs ive noticed, tho i do feel its lacking on the all metal (its all ive used in past tbh)..Imo the all metal is slighty less in air tests than say `je mode 99 sens`..In the past ive always found all metal to be way deeper than disc tho im finding it hard to hear targets at any real depth in all metal atm at 12 inches a coin will barely register in all metal, tho the same coin would hit and be a diggable target in disc..boost in all metal seems to make no difference and sensitivity at 50 thru 99 in all metal make no difference as its adjusted (ie depth at 50 is the same all the way thru to 99 with no noticible increase)...Am i possibly imagining it you reckon or expecting too much? I thought the earlier problems had been ironed out and the all metal issue shouldnt be found on a unit dated january 15? Also it cost approx $120 dollars to send it from here in the UK and tbh dont really want to have to spend that amount yet again.

Any input appreciated..Just to add other than the all metal issue im made up with it and would probs use disc anyway now emi is sorted out, Just like to know others opinions and if anyone else with newer units still finding problems?

Thanks

Ste

 

[pvtcook]

I'm experiencing the same. I bought a new one this month. It's a 12/14 model. On 9.0 I could pick up a quarter about 12-12.5". 0 disc 99 sens BP. AM might have been one" deeper. However the Disc tones actually sounded stronger then the AM. I switched over to 9.1 and it really wasn't any better.

 

[togg77]

This is why I'm not sending mine in for a FREE upgrade. I'll just turn the sensitivity down----looks like this is what FT is doing.

 

[cintitomcat]

I emailed and talked to Gene Scullion from Fisher and received a email saying 11'' in am bp sens-99 was pretty good on a nickel. So I take it it's normal. That's why I relisted mine in the classifies. Tom

 

[WV62]

I don't think FT is going to give you a real high number because if they said something like you should get at least 17" on the nickel, and then that got out to all on the forum everybody would be unhappy. So they give you nice low ball number like 11" that they are pretty sure all the F75's will hit easy.

So Tom what are you getting with your detector on the nickel test? I am getting 14" to 15" on a nickel in AM, sensitivity @ 80 and going from BP disc to AM, also had the 11"DD coil on the stick. The upgrade date on mine is 12-14-14 then it come up with a 03-05-LE.

Ron in WV

 

[horikindaguy]

like the old Peggy Lee song, 'Is that all there is?'.....

I think so and the fat lady has sung, so to speak....sounds like for your 'average' MD'er (who only runs disc) most will be fine with the new version but those very experienced folks who run all-metal 'at the edge' might be disappointed....

I think it's time to move on (and Ste I certainly wouldn't send your unit back!)....I really hope this summer/fall will the timeframe for a new Fisher flagship....new 'grist to the mill'....is needed.

 

[digsgti]

Hoped FT had the all metal problem sorted out by now. 11 inches is very poor. Mine is down there now for a second go at the upgrade because of the poor all metal performance. I hope they dont try to tell me something like that.

 

[undrpar]

My 11-14 date was getting 15-16 inches on a nickle in am bp 90 sens..i sent it in for the pipoint issue and they are replacing the whole uinit with a new one..hope my depth is the same..

 

[chuck ky]

you're listing your detector for sale because it will only get 11 inches on a nickle. what machine have you found that will do better. will someone want to buy it if you're complaining that its not deep enough on a nickle. with all the targets that come in the range of nickle I doubt if I would want to dig them over 11 inches.

 

[horikindaguy]

Hoped FT had the all metal problem sorted out by now. 11 inches is very poor. Mine is down there now for a second go at the upgrade because of the poor all metal performance. I hope they dont try to tell me something like that.

PC board is the same (mostly digital with few adjustments?), SW is the same (as stated by Mike Scott), so maybe a new coil? At this point I just don't see how they'll improve your unit. If they do then there 'really is' something that they can do and if so they should 'come clean' and let you and the rest of us know what it is....

 

[cintitomcat]

I get 15'' in disc, bp sens-99, only selling because i am mainly a coin hunter and like my E-trac better. When in am mode bp carry over sens-99 i'm getting 11''. There's other's here that got the second round fix and get about that in am. Mine is a 1/15 ser # not sure what comes up after that. These are all air-test numbers. Any suggestions, i contacted them directly like they ask us to do. I can't keep sending this back, at some point i should be able to go with what they say. RIGHT. The machine is quiet since getting it back. I'm not trying to rip anybody off selling this machine. I thought it would be a good ideal for me to get the upgrades done before selling.

 

[digsgti]

Hoped FT had the all metal problem sorted out by now. 11 inches is very poor. Mine is down there now for a second go at the upgrade because of the poor all metal performance. I hope they dont try to tell me something like that.

PC board is the same (mostly digital with few adjustments?), SW is the same (as stated by Mike Scott), so maybe a new coil? At this point I just don't see how they'll improve your unit. If they do then there 'really is' something that they can do and if so they should 'come clean' and let you and the rest of us know what it is....

It might have to be a new unit then. Fisher will make it right one way or another. Proper All metal mode is not something I'm willing to sacrifice for a quieter disc mode.

 

[davidtn]

you're listing your detector for sale because it will only get 11 inches on a nickle. what machine have you found that will do better. will someone want to buy it if you're complaining that its not deep enough on a nickle. with all the targets that come in the range of nickle I doubt if I would want to dig them over 11 inches.

Not to throw gas on a fire but I couldn't agree more. I'm selling my Whites V3i because it can't touch the F75 for depth...I'd be ecstatic to hit a nickel at 11".

So what am I missing here?

 

[ddmk6]

Mine is a 1-15 unit as well. Same story with the All Metal.

BP, 0 Disc, 99 sens, 4 tone, GB at 66 (what my soil balances at), Frequency 6. These numbers are with good useable repeatable tones.
Silver dime = 13"
Silver Quarter = 14"
Silver 50 = 15"
Nickle = 16"
Type 1 gold dollar = 12"

Same settings as above with threshold set at +2 in All Metal.

Silver dime = 9.5"
Silver Quarter = 9.5
Silver 50 = 9"
Nickle = 10"

Seems to be "it is what it is"

Kenny

 

[WV62]

Mine is a 1-15 unit as well. Same story with the All Metal.

BP, 0 Disc, 99 sens, 4 tone, GB at 66 (what my soil balances at), Frequency 6. These numbers are with good useable repeatable tones.
Silver dime = 13"
Silver Quarter = 14"
Silver 50 = 15"
Nickle = 16"
Type 1 gold dollar = 12"

Same settings as above with threshold set at +2 in All Metal.

Silver dime = 9.5"
Silver Quarter = 9.5
Silver 50 = 9"
Nickle = 10"

Seems to be "it is what it is"

Kenny

Kenny I have only been testing on clad quarters and the nickel, so I am only looking at your quarter/nickel numbers to compare to mine. Now mine is a 12-14-14 upgrade date.
Bp disc you get 14", I get 11.5"
AM you get 9.5" and I get 15"
AM nickel you get 10" and I get 15"

So if you are interested in a true comparison to my machine, we need them set the same. If you want to retest here is my settings.
11"DD coil
Headphone is a must
Target = clad quarter
Factory reset and select 9.1 DST off and go with all factory settings except listed below
Select BP disc and air test quarter
With BP disc still selected switch over to AM motion and air test quarter and nickel

If anybody else out there wants to compare numbers I would be interested in seeing your numbers.

Ron in WV

 

[cintitomcat]

When I do these tests I factory reset like you but go with sens-99 in am mode and 10-11' on a nickle', and that is a very quiet signal. Tried this 9.0 and 9.1.

 

[detectingMO]

turn your threshold up a bit and you should get close to 16" on quarter and 18" on a nickel

 

[detectingMO]

I sold my 12/14 replace ment but here is what I got.

99 sens BP 0 disc
9.0

quarter 14.5"
nickel 16"

9.1 (noticeable drop off before faint signal, like this is dst mode)

quarter 13.5"
nickel 15"

99 sens BP AM thresh 1+

9.0

Quarter 15"
Nickel 18"

9.1

Quarter 16"
Nickel 19"

9.0 was slightly hotter in disc and 9.1 was slightly hotter in AM

 

[ddmk6]

Kenny I have only been testing on clad quarters and the nickel, so I am only looking at your quarter/nickel numbers to compare to mine. Now mine is a 12-14-14 upgrade date.
Bp disc you get 14", I get 11.5"
AM you get 9.5" and I get 15"
AM nickel you get 10" and I get 15"

So if you are interested in a true comparison to my machine, we need them set the same. If you want to retest here is my settings.
11"DD coil
Headphone is a must
Target = clad quarter
Factory reset and select 9.1 DST off and go with all factory settings except listed below
Select BP disc and air test quarter
With BP disc still selected switch over to AM motion and air test quarter and nickel

If anybody else out there wants to compare numbers I would be interested in seeing your numbers.

Ron in WV

If I get time today I will try and match up settings closer to your and see what shakes out. I'm getting ready to head out of town for a few weeks so I may not be able to squeeze it in. Thanks for the info Ron.

Kenny

 

[ddmk6]

Kenny I have only been testing on clad quarters and the nickel, so I am only looking at your quarter/nickel numbers to compare to mine. Now mine is a 12-14-14 upgrade date.
Bp disc you get 14", I get 11.5"
AM you get 9.5" and I get 15"
AM nickel you get 10" and I get 15"

So if you are interested in a true comparison to my machine, we need them set the same. If you want to retest here is my settings.
11"DD coil
Headphone is a must
Target = clad quarter
Factory reset and select 9.1 DST off and go with all factory settings except listed below
Select BP disc and air test quarter
With BP disc still selected switch over to AM motion and air test quarter and nickel

If anybody else out there wants to compare numbers I would be interested in seeing your numbers.

Ron in WV

If I get time today I will try and match up settings closer to your and see what shakes out. I'm getting ready to head out of town for a few weeks so I may not be able to squeeze it in. Thanks for the info Ron.

Kenny

OK Ron,

I checked in both 9.0 and 9.1 using clad quarter, nickel and dime. 9.0 and 9.1 are pretty similar, only about an inch difference with 9.0 being the winner. And I used headphones with 11" coil.

My numbers were close enough to be exactly like my numbers using silver, no change using clad for a target.

BP, 0 Disc, 99 sens, 4 tone, GB at 66 (what my soil balances at), Frequency 6. These numbers are with good useable repeatable tones.
Silver and clad dime = 13"
Silver and clad Quarter = 14"
Silver 50 = 15"
Nickle = 16"
Type 1 gold dollar = 12"

All Metal was the same as well. As I said in All Metal I'm going off of a solid tone not just a waiver in the threshold. Even if I went with a waiver I can't come close to the numbers you are seeing in AM. This was switched over from BP mode as well.

Silver and clad dime = 9.5"
Silver and clad Quarter = 9.5
Silver 50 = 9"
Nickle = 10"

Something interesting I checked was my AT Gold had the exact same numbers in AM mode as the F75 and the AT's discrim 1 was the same as AM.

I aslo dug up and reburied some silver dimes. a 50 cent and a gold Type 1 dollar. Now I know these are freshly buried but I did it so I would know exactly how deep they were. Bear in mind this is in 3 to 4 bar Fe dirt.

10" dime.....Nada
6" dime hits one way but not both ways
5" dime barely there
7" 50 cent barely there but repeats

Hope this helps.

Kenny
4" gold dollar good one way but I think I could actually hear it deeper, I could raise the coil up an inch or so and still hear it.