My Par End-Fedz Antenna

I use a Par End-Fedz antenna at my QTH, in particular, the EF-20. Par Electronics calls these antennas ‘dipoles’.  They are nothing of the sort. Just because an antenna is a half-wavelength long, does not make it a dipole.  Here’s what they say- “The Par End-Fedz are a full length half wave dipoles, but with … Read more

Web-based software-defined radios explained

WEBSDR

With tens of thousands of radio stations streaming their content on the web, the world is your oyster. Whether you’re into Cuban salsa or small-town American music, you’ll find no shortage of stations that cater to your tastes. This might suggest that all you’ll ever need is an Internet radio portal, such as www.reciva.com, but … Read more

What is shortwave radio?

From a purely technical point of view, shortwave radio refers to those frequencies between 3 and 30 MHz.  Their main characteristic is their ability to “propagate” for long distances, making possible such worldwide communications as international broadcasting and coordination of long-distance shipping. From a social point of view, shortwave radio is a method of facilitating … Read more