Balcony Antenna for 7, 10, 14 MHz (http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=31441). (http://www.cqham.ru). Accessed on 18 November 2016, 04:45 hrs, UTC . Author: Valerei Prodenov (UR5WCA). Please click the title link or insert the title URL into your browser search box to read the full article. Comment: Here's another great idea for an antenna suitable for a crowded urban area or in places where HOAs and CC&Rs limit the type of ham radio antennas available. Valerei does an excellent job of describing his vertical helix antenna which covers the 7, 10, and 14 MHz amateur radio bands. He includes a list of materials and some helpful construction hints. I still use a vertical helix for 80 meter operations. I feed my vertical helix with 450 ohm ladder line which terminates in a 4:1 balun/manual "tuner" arrangement. Over the past few months, I've managed to lay approximately 25 quarter wave ground radials to improve the low efficiency of the a
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Dave Turlock (KG0ZZ) continues his tutorial on how to build a 10, 15, and 20 meter Trap Vertical Antenna. In part 3, Dave shows us how to build a 15 meter trap for the antenna. You can use a trap calculator to figure out the measurements. In part 4, Dave makes traps for 20 meters and 40 meters and finishes the final touches on this 3-band HF antenna. For the latest Amateur Radio news and events, be sure to check out the blog sidebars. These news feeds are updated daily. You can follow our blog community with a free e-mail subscription or by tapping into the blog RSS feed. Thanks for joining us! Aloha es 73 de Russ (KH6JRM). Note: If you have difficulty viewing this video, please insert this URL into your browser: https://youtu.be/1Ff4_4T9RiI.