Posts

Homebrew 2M moxon antenna project. Post #1592.

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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=OEWb_H2m5k4 Thanks to Paul Athersmith for this excellent 2 meter moxon antenna project. As Paul explains, the moxon design is simple, easy to build, light weight, and ideal for portable or field operations.  Paul shows us how to design, build, and use this antenna with a simple, step by step procedure.  You can also design a moxon antenna for the HF band of your choice.  A nice, compact antenna that should belong in your emergency "go-box." 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:/

Ham Radio-My 630 meter magloop. An overview. Post #1591.

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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=Wrfmmb-YNyI. The 630 meter band (473 kHz-470 kHz) is attracting a lot of attention these days, despite severe power restrictions and limited space for efficient antennas. In this video, Kevin Loughin (KB9RLW) designs, builds, and successfully uses a homebrew 630 meter magnetic loop antenna that delivers contacts on this band below the U.S. Standard Broadcast Band.  Build this antenna and discover the amazing amount of signals that can be received with this simple, effective design. 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)

WV7U Tilt-Over Antenna Mast. Post #1590.

WV7U Tilt-Over Antenna Mast. http://www.wv7u.com/mast/mast.html. Author:  Hank (WV7U). Accessed on 20 August 2018, 0320 UTC, Post #1590. Please click link to read the full article. Comment:  Have you ever wanted to have a strong, reliable, and fairly inexpensive antenna mast for your ham shack?  If you don't want to spend a lot of cash for such a project, Hank's (WV7U) Tilt-Over Mast may be what you're looking for. According to Hank, the expenditure of around $300 US for locally available materials should provide all of the components needed for this sturdy mast.  The most important part of the mast is the selection of the pipe needed to support your antenna: "I used two different sizes of standard schedule 40 black iron plumbing pipe: 2" for the base and lower section, and 1-1/2" for the top section. This pipe comes in 21' lengths. Galvanized plumbing pipe of the same size would be OK too, but it was about 50% more expensive, and the zin

W9BVX's Helium Balloon Antennas. Post #1589.

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If you can't view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=kVXJB-k8co0. Ever since he first saw a balloon support an antenna, Bob (W9BVX) has wanted to create his own balloon-supported antenna for portable operations.  In this video, Bob duplicates the experience with his fellow radio amateurs at a Wisconsin field near his home.  A balloon-supported antenna could prove useful at the next ARRL Field Day or for an emergency situation where an antenna mast is not available. 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 j

Extra Class Lesson 9.1, Basics of Antennas, 11th edition. Post #1588.

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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=cNcTVWCEeU0. This is a must see video for those of you preparing for the Extra Class Amateur Radio License in the United States.  The video provides an excellent overview of basic antenna theory, including antenna radiation patterns, gain, bandwidth, and design features.  Dave Cassler (KE0OG) is an excellent teacher who clearly explains how antennas work and what is required to design them properly.  Review this video a few times before your exam...you won't regret it. 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: