Advice Needed For F75 Small Coil

[RLOH]

I used the small coil for the second time today and I had a terrible time with it. I must have dug a hundred pull tabs and beaver tails. I only dug four coins in 5 hours. Every single pull tab read in the high 80's in the ground and mid to low 50's out of the ground. I started out in de mode, sens at 75, disc at 6, 3h tones. The ground balance seemed to be locked on 90 everywhere I checked it. It never changed and this is suspicious to me. The tabs all high toned when checked from every angle. I tried everything from running the disc up to 65 and notching iron, foil, tabs, and zinc. Everything I tried failed. It was as if everything read coin. I changed over to the stock coil and the GB numbers got back to the normal readings in this park which are between 70 and 85. I don't mind not digging many coins, but 25 pull tabs for every coin is unacceptable. I need some help. I thought the F75 with both coils would be the perfect setup, but after today I am having second thoughts. This is the worst time I have ever had with a small coil and I have had small coils on every detector I have owned. R.L.

 

[gmanlight]

RLOH I am still green with F 75 but love the small coil check for loose connection ,try another site stay in [make sure ] your in de mode you could reboot detector

lower sens 3H pulls nickels in to high tone but wont change ID. Hope the coil is not bad I dig little trash after reading posters i should dig more tweeners

Luck Mike

 

[geodawn]

The small coil for me was erratic at first and I had to send it back to Fisher. They replaced it and the new one seems more stable.

 

[BarnacleBill]

I don't own an F75, but it sounds like the little coil was not tuned/balanced correctly. If your connector was properly seated, sounds like a trip back to Tejas to me.

HH
BarnacleBill

 

[jim tn]

I agee with Barnacle. My small coil reads targets just like the 11", it just gets a little less depth. Hh jim tn

 

[Elton]

Are you sure the connection is pushed in all the way..That will make a big difference in performance and they fit tight..It's easy to not get it all the way in..

 

[bottlebum]

It's easy to not get it all the way in..

Soooo true.....I thought I was going to break my display while trying to push the cable in all the way.

 

[XLT-user]

Thanks Elton for reminding us all about that...

 

[bottlebum]

n/t

 

[Elton]

I am happy with the way everything works on the F75..

 

[D&P-OR]

RLOH-----That 3H (&4H) is going to bring in more pull tabs, aluminum etc. in as high tone. Did you try just 3 (tones)? I had what you are describing happen to me in a pull tab riddled area and it about drove me "bannanas". For the site I was hunting-to keep my sanity- I simply ended up hunting in 3 & 4 tones. Ya gotta love that 75 though---we "ain't never seen nuthin like it".

 

[WTnFred]

Jim,

How much more depth do you think the 11 inch coil gets over the small coil? I am working an 1860 home, inner city, with the small coil and the oldest coin I have found so far is an 1896 V nickle.

thanks,
Fred

 

[Doug[Manila]]

I have a small coil as well and where the 11" reads 88 gb, the small coil reads 92 gb. Haven't used it much yet.