Fisher F75 Factory Reset Procedure

[Relicrecoveryspecialist1]

6 hours ago, Steve Herschbach said:

There have been numerous F75 revisions, many undocumented. Manuals do not always keep up and mistakes happen. I’m not saying it is the case here but anything is possible. DST should not make the machine noisier so real world evidence does have to be taken into account. I would not insist on running the machine like the manual says contrary to the evidence of my eyes and ears.

I took it out today, and tried 9.0 and 9.1 with no difference in chatter or EMI. I was also in a rather trashy area. Turned sens down some, and it helped. One thing I do miss about the older F75’s was my last LTD was a little more quiet when it comes to ground minerals. I’ve checked connections at the coil, and box, and their both tight so I think it’s the trash, EMI, and mineralization.