Monday, March 28, 2016

Simple Ham Radio Antennas--100 watt 7 MHz magnetic loop for units and apartments

If you're having trouble viewing this video, please enter this title link into your browser search box:  In this well-produced video, Peter Parker (VK3YE) shows us how to design, build, and use a 100 watt 7 MHz magnetic loop antenna for restricted places such as apartments or in areas where HOAs and CC&Rs are present.  Peter says there are no hard to get parts or complex workshop skills needed to build this portable antenna.  Instead of an expensive vacuum variable capacitor, Peter uses a length of RG-213 coaxial cable (approximately 1.85 meters long and 3mm circumference loop for 7 MHz). The sliding capacitor dimensions are approximately 6 cm x 8 cm.  Since this loop carries a lot of potentially dangerous voltage, please use this antenna away from your shack.  If you've got the time and need a highly portable antenna for restricted areas or for portable use, try Peter's magnetic loop antenna. 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).  This is post #730 of a continuing series.