I just picked up a vintage vhf radio for my boat and I simply cannot find an operator's manual for it on line anywhere. I need a manual for a Sandpiper 2500 radio made by Unimetrics. I went on the search engine above too and found no match. I was on line for hours trying to find the manual and cannot locate one. Can anyone help me out here? I really appreciate any help you can give me on this. Thanks!