I have for sale the original (not a copy) Kenwood external control instruction manual for the TS450/690. It gives instructions on computer control of the 450/690. I am asking $10 shipped for it. 73s John AA5JG (ex: W5TD, NE0P, N0EEN, KA0IFG) Confirmed 6M addict: 6M WAS #1275, 6m VUCC #1260