In 1906 he achieved two-way voice transmission by radio between Scotland and Massachusetts.
a. Guglielmo Marconi
b. Lee De Forest
c. Nathan B. Stubbefield
d. Reginald Fessenden
Answer: D
In 1906 he achieved two-way voice transmission by radio between Scotland and Massachusetts.
a. Guglielmo Marconi
b. Lee De Forest
c. Nathan B. Stubbefield
d. Reginald Fessenden
Answer: D