Observations and experiences of DF6QV Dowload full pdf below: 4-Square Antenna in theory and practice_03_04_15 A couple of years ago I became interested in 4-Square-antennas. It is an antenna system which, as the name suggests, consists of 4 radiators, a coupler, phasinglines, as well as a radial or ground system. The coupler is the core […]