S9SS on São Tomé

I just contacted Charles Lewis S9SS on São Tomé (an island off the west coast of Africa) using HF radio on the 20m band, 14.245 MHz Upper Sideband (USB).

Link to further information about São Tomé on Wikipedia.

Charles is a very skilled operator and he does a great job keeping the DX Pile-Up (hundreds of hams calling him at once) reasonably organized and well behaved.