As a result , he had become the new world record holder of the 50 MHz and it was pressed in the 1984 Guinness Book .
Then he successfully made the radio contact with PY5BAB from Curitiba where 19997.05 km away from Minami - daito Island is .
He had become the new world record holder of the 50 MHz and it was pressed in the 1984 Guinness Book .
Then he successfully made the radio contact with PY5BAB from Curitiba where 19997.05 km away from Minami - daito Island is .