Waveguide - The Sun: How it controls the invisible Reflector above the Earth - BBC Sounds
Waveguide - The Sun: How it controls the invisible Reflector above the Earth - BBC Sounds
The Sun: How it controls the invisible Reflector above the EarthThe Sun: How it controls the invisible Reflector above the Earth
Released On: 16 Mar 1989
Available for over a year
How short wave radio depends on the ionosphere and the Sun
