After reading a post from Revier related to DP tone for the Fisher F70, I tried it today on the Patriot. It will take several more hunts to learn the different pitch using this setting but today was good. Found 3 quarters, 6 dimes, 3 nickels and 9 pennies all clad plus an old pocket knife. Also a few pull tags but not as many as I normally dig. I suggest anybody using the Patriot to search the forum related to Fisher F70, DP tone posted by Revier offer's a lot of good information.