Sonar Throwback: Reginald Fessenden and the Fathometer

Reginald Fessenden and the Invention of Sonar

Marine Electronics for Boats, Boating Electronics

Reginald Fessenden: What If Sound Waves Were Continuous Like Ripples on a Lake?

Reginald Fessenden: Father of Modern Radio - Kansas Association of Broadcasters

Reginald Fessenden The Canadian Encyclopedia

Radio -- Fessenden and the Early History of Radio Science

World's first radio voice broadcast from Mass. coast in 1906

Fun Fact Friday! The radio sonar is invented by Reginald Fessenden on this day in 1913.

World's first radio voice broadcast from Mass. coast in 1906