hey fellas radio shack has came out with a jammer to jam fishing eletronics.. gps cell phones fish finders... and guess where I have been this morn.. radio shack!! i have sent this on to the pentagon and they are gonna to isnstall me a minature heat sinking missile devise for floats...so when charger & uncle dave switch to floats..look out, and this thing will also jam auto pilot trollin motors.. this is set to my frequency so it wont bother my stuff..