There’s a quirk of broadcasting in Europe left over from the earliest days of the medium, which our American readers may not have encountered. As well as the familiar AM band, Europeans and Africans ...

Long-wave radio signals spray out from the transmitters in undulations from 200 to 25,000 metres in length. They surge through & around obstacles or up against and down from the ionized ...

If you paid attention to advertising in 1980s Britain, you were never far from Economy 7. It was the magic way to heat your house for less, using storage heaters which would run at night using cheap ...

Radio signal broadcasts have their usefulness, but they eventually end (except, perhaps, for SETI). Every so often, we mark the public end of a once-essential wavelength, such as 3G cellular, analog ...