F19

[Mark-VA]

This might not be appropriate, but here goes.

Are there any adjustment that can be made to the fisher F19?
Just wondering if everything is hard wired rather EPROM only?
Not at all pleased with one main thing.

You never know if the emi is bad while in discrimination mode unless you switch over to AM.
I'd like to increase the threshold in discrimination mode to allow me to hear interference while I hunt.

I'd guess all is internal for sure.

[Skippy]

Increasing the overall sensitivity of the machine may make it more 'sparky' , but as I've never used the F19, I don't appreciate what kind of result you're after.
I posted how to achieve this on a GoldbugPro, in this thread, posts 21,22 are the ones:
http://www.geotech1.com/forums/showt...-help&p=236974

I'm unsure how similar the F19 circuitry is to the G2/GoldBugPro, if you're serious about this, I'm sure some PCB pics would show what's what.

Personally, it's something I would tinker with on MY machine, but I would recommend you use caution, gains will be minimal.