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Showing posts with the label $20 HF Portable Antenna Project.

$20 HF Portable Antenna Project. Post #1065.

If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=leriedzr1Es. Here's a simple, inexpensive HF Portable Antenna that covers  20 meters (14.300 MHz), 12 meters (24.95 MHz), 11 meters (27.205 MHz), and 10 meters (28.400 MHz)...all with a SWR lower than 1.2 to 1.  The antenna is based on a design from Frank W. King (KM4IE).  Although there is no voice description of the antenna project, the photos, parts list, and operational details are clear enough. This antenna can be used in portable/emergency situations, as well as in areas where antennas are restricted. For the latest Amateur Radio news and information, please visit these sites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.wordpress.com. http://www.kh6jrm.info (breaking news for radio amateurs). Other sites of interest: http://hawaiisciencedigest.com (science and technology news for radio amateu

Simple Ham Radio Antennas--$20 HF Portable Antenna Project. Post #796

If you're having difficulty viewing this video, please insert this title link into your browser search box: https://youtu.be/leriedrz1Es. Here's another of those "wordless" tutorials that is pleasant to watch and fairly easy to follow.  Well-produced video on how to make a $20 HF Portable Antenna that covers 20 meters, 12 meters, 11 meters (CB), and 10 meters.  This antenna from "mrhighlander2003" is based on a design from Frank W. King (KM4IE). Basically, this is a base-loaded vertical helix with "stinger" wire on top.  I've built a few of these for single band use (usually 20-meters), and they have worked well with a decent ground plane or radial system.  According to "mrhighlander2003", here are the SWR readings for the bands he covers with this antenna: 20 meters (14.300 MHz)--1.11 to 1. 12 meters (24.95 MHz)--1.23 to 1. 11 meters (27.205 MHz)--1.01 to 1. 10 meters (28.400 MHz)--1.00 to 1. You may want to build one of these

Simple Ham Radio Antennas--$20 HF Portable Antenna Project. Post #695.

If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/leriedzr1Es.  Here's an easily made and versatile portable HF amateur radio antenna that covers the 20 meter, 12 meter, 10 meter, and 11 meter (CB) bands.  This antenna is based on a design by Frank W. King (KM4IE). Most of the antenna materials can be found at a hardware store or building supply outlet.  Initial SWR data indicate that tuning this antenna shouldn't be major issue:  20 meters (14.300 mHz--1.11:1); 12 meters (24.95 mHz--1.23:1); 11 meters (28.4 mHz--1.01:1); and 10 meters (28.4 mHz--1.0:1). Results are pending for 15 meters and 17 meters.  If you use this antenna, be sure to attach a counterpoise wire or a ground radial system. You can get detailed plans for this portable HF Antenna by visiting this website: http://www.arrl.org/files/Technology/tis/info/pdf/00043033.pdf.  For the latest Amateur Radio news and events, please check out th