Posts

N4LQ 160-10 Multiband Doublet with Auto-Tuner. Post #1545.

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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=0jVVQ8ReQXA. A nicely designed and built 160-10 meter doublet antenna from Steve Ellington (N4LQ).  The key to the antenna's multiband capability is the use of a balanced feed line and an "auto-tuner" (MFJ-998). Steve says "the 60-foot (18.29 meters) of feed line presents an easy to match impedance to the tuner for 160 meters." For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://amateurradionewsinformation.com (Amateur Radio News & Information). https://www.eham.net. http://www.southgatearc.org. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).

Ham Nation 355: All About Fractal Antennas. Post #1544.

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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=1Tca4ZIvoxo. Ham Nation is one of my favorite video podcasts.  Episode 355 was recorded shortly before the 2018 ARRL Field Day and contains a wealth of information for those participating in this annual event.  In addition to the regular program features (Show Us Your Shack and equipment reviews), this episode also includes an excellent discussion of Fractal Antennas, which can be used in some Amateur/Ham Radio situations. Chip Cohen provides a good, basic overview of Fractal Antennas and shows how these devices can be used for both home and portable operations. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.co

Magnetic Loop Antennas. Post #1543.

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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=yYbKrw8l6JU. Apartment dwellers have some difficult antenna challenges if they want to get on the air without violating their deed restrictions or have insufficient space for an outdoor antenna.  In this comprehensive video from Bob Fleck (W4RAX), we see how a simple magnetic loop antenna can get you on the air without having to install an outdoor antenna or violate your housing rules (HOA/CC&Rs).  Magnetic Loop Antennas can also be used for portable operations where there is a lack of antenna supports For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://amateurradionewsinformation.com (Amateur Radi

Antenna for Condo Backyard-Stealth. Post #1542.

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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=MXTYTytR56A. Don't let deed-restricted properties (HOA/CC&R) stop you from enjoying Amateur Radio.  In this video from AC2RJ, we see how some well-placed trees, a camera tripod, a telescoping fiberglass mast, and a "V" antenna can get you on the air without a lot of effort.  Add an antenna "tuner", a sturdy rig, such as the Yaesu FT-817, a microphone/cw key, and a simple grounding system, and you have a fully functional, nearly invisible ham station in your backyard. For the latest Amateur/Ham Radio news and information, please visit these web sites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://amateurradionewsinformation.com (Amateur Radio News &

How to Build a 9:1 Unun for Ham Radio Antenna. Post #1541.

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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=mfnvqQeDLoQ. If you use a long or random length wire for your home or portable antenna, a good ground radial system, an antenna "tuner", and a sturdy 9:1 balun are necessary to keep SWR low and RFI out of your shack. In this video, "Tinker John" (W5CYF) shows us an easy, simple, and inexpensive way to build a 9:1 balun for any random length wire antenna you use.  John takes us step-by-step through the design, construction, and use segments of this handy, "one-evening project."  Make two of these baluns--one for home use and the other for your mobile "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.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://hamradiohawaii.wordp