Can any one give me a contact person's name and phone number at fisher. I would like to find out if they think I should send my F-75 back for repairs. I have been detecting for 39 years now using everything from home made detectors to top of the line mine labs, and whites, ran smooth and steady as a rock. None of them were as erratic as this F-75, Even after dropping them several times. None of them has had to be repaired by the factory. I have read so much about the outstanding qualities of the F-75, and I would really like to experience them for myself.