Single Support Directional Wires

摘要

The current sunspot inactivity makes the lower frequency bands very useful for long distance contacts. Rotatable directional antennas both reinforce our transmitted signals and allow us to receive DX in the presence of strong short-skip signals. However, such antennas are often large and expensive. In this article I will describe the method used to design an electrically rotatable 80m antenna, supported by a single 18m mast.