80 Meter Half Square. Post #1170.
If you can't watch this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=2SBGdPMnH-E. You can also insert the post title into your browser search box to bring up the video. If you spend much of your operating time contacting certain sections of the world, you may want to design and build a half square antenna for your favorite band. I've used half square antennas for 20,15, and 10 meters with good results. At these frequencies, construction of this phased, bidirectional vertical antenna is fairly simple and can be aimed in the direction of your choice. A theoretical gain of 3dB is possible, making the half square a worthwhile experiment. In this post, Don Johnson (N4DJ) takes the half square a step further by building and using an 80 meter version of this antenna. In the 80 meter band, this antenna can be quite large, often necessitating extra help in building and aiming the antenna in the preferred direction. If you