Efforts to revitalize the AM radio industry run the gamut from large to small and include modifications as specific as those surrounding the licensing/modification of AM directional antenna arrays.

There is no way to cover all the important concepts of directional antennas in a single column. There have been many voluminous tomes written about this subject. This month we will look at some of the ...

SPRINGFIELD, VA.—Ever hear of an “Antennalyzer?” No, I’m not referring to the popular little boxes used by ham operators to check antenna characteristics and impedance matching, but rather to an early ...