Thursday, June 9, 2016

Simple Ham Radio Antennas--Doublet aerial for HF amateur ham radio short wave bands

If you're having trouble viewing this video, please enter this title link into your browser search box:  Excellent video from Ray of the "Radio Workshop" on how to design, build, and use a basic doublet/dipole antenna for the HF amateur radio bands.  The doublet is one of my favorite antennas, because it's inexpensive, easy to build, and performs well for both single band and multiband use with balanced feedline and a balun/antenna transmatch (i.e. "tuner") combination. A dipole fed with 300 ohm television twin lead, 450 ohm ladder line, and "homebrewed" 600 ohm line can work work all amateur radio HF bands between 160 and 6 meters, depending on which frequencies you select as your lowest band.  If you design the doublet for 80 meters, it can be used on any amateur radio band between 80 meters and 6 meters if you use a balanced feed line and the appropriate balun/tuner combination.  Ray does an excellent job of explaining how to build one of these simple and inexpensive HF antennas, which can be used to monitor shortwave broadcasts as well as transmitting on amateur radio frequencies.  You can use the doublet in a variety of configurations, including flat top horizontal, inverted vee, and sloper.  Experiment and have some fun.  For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks for joining us today!  Aloha es 73 de Russ (KH6JRM).