Measuring the performance of antennas in absolute terms that can involve a lot of expensive equipment and specialized facilities. For practical applications, especially when building antennas, ...

The 320-ton rotating curtain antenna in Moosbrunn, Austria, was dismantled this week as part of the decommissioning of the historic shortwave radio site, according to reporting from the Austrian ...

The circuit presented here illustrates the fact that in spite of all kinds of new component and technology, it is still possible to design useful, and interesting, circuits. The circuit is based on ...

The author is sales and business development manager for Ampegon Power Electronics AG. My first car, a 1984 vintage, had a shortwave radio receiver, but I didn’t bother using it. I was young while it ...

MIAMI (CBSMiami) - A massive shortwave radio antenna sits in a cow pasture north of Lake Okeechobee in Central Florida. "We have 14, 100,000-watt transmitters and 23 antennas beaming to all parts of ...

Building antennas is a time-honored ham radio tradition. Shortwave antennas tend to be bulky but at VHF frequencies the antenna sizes are pretty manageable. [Fjkaan’s] 2 meter quadrifilar helicoidal ...