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Showing posts with the label Dipoles

Loops, dipoles, and verticals-cheap wire antennas

If you can't see the video, please go here: This is post 2625 in a continuing series of simple ham radio antennas. Callum McCormick (M0MCX) does an excellent job of describing three types of wire antennas that can be built with minimum cost and maximum performance. Here are some of Callum's comments: I love economical wire antennas and this presentation is my 20 years of experimentation of wire antenna science in a nutshell. This was recorded LIVE for the folks at Bury AMS and Warrington ARC. Sit back and enjoy! Callum. DX Commander. M0MCX. ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

Simple Ham Radio Antennas: Ham Radio General Class Lesson 6.2, Dipoles, Ground-planes, and Random Wires. Post #344

Here is another one of Dave Casler's (KE0OG) excellent, well-paced tutorials on amateur radio antennas. This time, Dave discusses antenna theory and design basic to passing the FCC Amateur Radio General Class License exam. Dave focuses his attention on Ground-Planes, Random Wires, and Dipoles--all of which can deliver plenty of contacts if they are built correctly. While Dave's advice on coaxial cable feedlines is quite good, I feel the use of balanced feeders (450 ohm ladder line or 300 ohm TV ribbon cable), coupled with a balanced antenna transmatch ("tuner"), will deliver comparable performance at less cost. A 135-foot/41.15 meters doublet (dipole) fed with 450 ohm ladder line or 300 ohm TV ribbon cable connected to a balanced tuner will cover all amateur radio bands between 80 and 10 meters. For the latest Amateur Radio news and events, please check out the blog sidebars. These news feeds are updated daily. You can follow our blog community with a free e