Experimental technologies offer elegant, inexpensive solutions. Researchers are studying applications and materials for creating radio antennas that are sprayed onto a surface. Made from commercially ...

The Family Radio Service, or FRS, is a system allowing short-range communications between friends and/or family. The system uses frequency modulation, or FM, signals, improving on the older citizen's ...

Written by Joseph Darlington, P.E. When building any radio system, the scarcest and most precious system component is not the radios, the antennas nor the towers, but available “clean” radio channels ...

For the amateur radio operator with that on-the-go lifestyle, nothing is more important than having your gear as light and packable as possible. If you’re lugging even a modest setup out into the ...

The basic design of the radio antenna hasn’t changed in a century. The antenna is usually a set of metal rods roughly half the size of the wavelength they are designed to receive. The electric field ...