Fisher F75 LTD air test problem?

[Landonthecoincollector]

Hello people of Treasurenet
I recently just bought a fisher f75 with DST and Boost Process and all the other features
I did an air-test and i can get coins up to like 9 inches
I was told these where very deep machines and could hit a quarter at 12 at least
I set it up at 70 sens, 0 disc, 1 notch, and DE process
is there something I'm doing wrong as I'm very new to the machine or even how you guys set yours up?
Thanks

 

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[Icewing]

How big is your coil?
12" is a stretch for any machine.

 

[Landonthecoincollector]

Stock DD

 

[ken135]

My F75LTD will hit a nickel @ 15". tested indoor at my house. Every house will have varying EMI at different times.
99 on SENS, 0 DISC, 1 notch and BP process using the v9.0 setup. One inch less with the v9.1 version setup.

In DE and JE mode, I get 12".

You might try a factory reset. Manual has instructions.