Modern ham radio operators often face restrictions on antennas. This has made small antennas more popular, despite some limitations. [Tech Minds] reviews the GA-450 indoor active HF loop antenna and ...

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Dipoles are a classic builder’s antenna, after all they are usually little more than two pieces of wire and a feedline. But as [Rob] shows us in the video below, there are a few things to consider.

NASA and Georgia Tech are looking to replace large expensive ground link dishes with arrays of cheap antennas backed by signal processing. Information from satellites, such as Earth Observing-1 (EO-1) ...