Posts

Ham Radio 2m Backpack Quad Antenna. Post 1987.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=IAiilzV8NpI. In my previous post, we examined the KD5IVP 2 meter Backpack Yagi Antenna--an excellent choice for operating "in the field" or for emergency use at your home station. In this video, we see another great backpack antenna from Dave Tadlock (KG0ZZ).  Dave takes us step-by-step through the design, construction, testing, and tuning of this handy, portable 2 meter quad antenna.  Assembly and disassembly are straightforward both at home and on portable operations. Most of the materials for this antenna can be found at the nearest hardware store or building supply outlet. For the latest amateur/ham radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.blubrry.com/arrlaudionews/ https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarr

2m Backpacking Yagi. Post 1986.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=kPGmad2MMWM. If you need an efficient, simple to build, and totally portable 2 meter antenna, then this design from KD5IVP is what you need. This video shows you how to design, build, test, and use this ideal backpack yagi antenna.  You may want to make one of these antennas for home use in case your regular 2 meter antenna is damaged by some natural event such as a storm or high winds.  Most of the materials for this yagi antenna can be obtained from the home improvement outlets or hardware stores in your area.  This is a great antenna that belongs in your emergency "go-kit." For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.blubrry.com/arrlaudionews/ https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrl

Multiband Center-Fed Vertical. Post 1985.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=9wU6-ymiftM. Here's a simple antenna that will provide coverage from 20 to 10 meters if you lack space to install a horizontal dipole. According to Stan Gibilisco (W1GV), the antenna is "1/2 wavelength on 20m and a full wavelength on 10m...it's designed for low-angle DX radiation and reception from 14 MHz to 28 MHz."  An excellent antenna for restricted spaces. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.blubrry.com/arrlaudionews/ https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. http://www.southgatearc.org. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).

15M EXTENDED DOUBLE ZEPP ANTENNA BUILD.mp4. Post 1984.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=oloLbE968Cg. Would you like to increase the gain and directivity of your 15 meter dipole antenna?  You can, if you make a few modifications to its length and are willing to use a balanced feed line and an antenna transmatch (i.e. "tuner"). This video is based on a design by George Murphy (VE3ERP).  The Extended Double Zepp Antenna is simple, efficient, and exhibits nearly 3 dBi gain over the "classic" 1/2 wavelength horizontal dipole. I've used a variety of extended double zepp antennas during ARRL Field Days and can attest to their outstanding performance.  The major limiting factor of this antenna is the extra space needed for each antenna element--which will be 5/8 wavelength each compared to 1/4 wavelength each for the regular dipole. For the latest Amateur/Ham Radio news and information, please visit these web sites: http:

Coax FeedLine Pass Through. Post1983.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=Tbh-IK7KIcg. In this well-constructed video from Peter Hadley (K6BFA), we see examples of how radio amateurs have passed antenna feed lines from their shacks to their antennas. These examples may give you an idea of what can be done to connect your station to your outdoor antenna.  Suggestions offered in this video may help you tackle this age-old problem. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.blubrry.com/arrlaudionews/ https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. http://www.southgatearc.org. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).