Radio amateurs are inventive people, and though not all of them choose to follow it there is a healthy culture of buildng radio equipment among them. In particular the field of antennas is where ...

For amateur radio operators, the quest for the perfect antenna never seems to end ... along with ultra-portability. [Ben]’s field test results were most impressive. Not only was he able to ...

The 21-M antenna system became operational in 2006 and is currently engaged in radio astronomy research ... with astronomical objects are produced by raster scanning across the field of view and ...