Posts

KC9OLF ARRL Field Day Antenna Build. Post #1478.

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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=KswsesN79e8. This video from "campindave1" show the step-by-step process of designing, building, and operating a multi-band HF dipole for the 2013 ARRL Field Day.  Members of the Owatonna Steel County Amateur Radio Club take you from the basic materials to the finished product in a few short minutes.  Simple, easy-to-build HF dipole antennas can perform very well if they are at least 1/2 wavelength above ground.  This video does a good job of showing the actual building process. For the latest Amateur/Ham Radio news and information, please visit these sites: 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). http://www.southgatea...

Simple Multi-Band Vertical Dipole. Post #1477.

Simple Multi-Band Vertical Dipole. http://qrznow.com/simple-multi-band-vertical-dipole-by-dj0ip/ Author:  DJ0IP. Accessed on 30 April 2018, 0005 UTC, Post #1477. Please click link or insert title URL into your browser search box. Comment: If you have a limited area to erect a multi-band HF Dipole Antenna, you may want to consider this vertical HF dipole antenna from DJ0IP. The illustration provided by DJ0IP provides all of the information you need to design, build, and operate this simple, elegant design. Here's the list of  basic materials for this antenna: A telescoping fiberglass antenna mast 12 meters/39.36 ft long.  DJ0IP uses a Spider Beam fiberglass pole to support the antenna. 6 meters/19.68 ft of wire for each antenna element for a total of 12 meters/39.36 feet. A homemade antenna center insulator.  Each antenna element is wrapped in a loose spiral for each half of the fiberglass pole. A convenient length of 450 ohm open wire feed l...

N9SAB Half Square Antenna-Field Test. Post #1476.

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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=_JR9v0YeI. Excellently presented test of N9SAB's 20 meter Half Square Antenna by "Outdoors On The Air."  While the half square antenna is a bit more complex than a simple random wire or dipole, it does show some gain (around 3dB) broadside over a dipole antenna.  In this video, "Outdoors On The Air" assembles, erects, and uses a half square antenna built by N9SAB, and shows the DX capability of this phased vertical array despite being only 20 feet/6.097 meters above ground. While the antenna can be erected by yourself, you may need some help to make sure the antenna elements are properly supported and aligned.  Although the half square can be used in portable operations, it may be best suited for a permanent installation. Over the past several years, the Big Island Amateur Radio Club (Hawaii Island) has used half square antennas fo...

Ask Dave #92-Exploring the Yagi, Log Periodic, and Phases Array. Post #1475.

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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=1AElxCzujIY. An exceptionally well-done, clear, and simple tutorial covering the theory, design, construction, and use of three popular gain-type antennas--the Yagi, the Log Periodic, and the Phased Array.  Dave Casler (KE0OG) supplements his presentation with easy-to-follow illustrations and valuable construction suggestions for radio amateurs interested in attaining better antenna performance. For the latest Amateur/Ham Radio news and information, please visit these web sites: 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) http://www.southgatearc.org. https://www.eham.net. Be sure to check the blog sidebars for more antenna and pro...

Super Antenna MP1 Horizontal Dipole For Portable Ham. Post #1474.

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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=QbbMPID2ItA. Here's another great antenna for portable or emergency HF operations, including the upcoming ARRL Field Day on 23-24 June 2018.  In this video, Julian (OH8STN) does an exceptionally fine job of showing us how to assemble, configure, and use the "Super Antenna MP1DXMAX."  This rotatable horizontal dipole offers excellent directivity, something that will prove useful during contests and portable operations such as field days, camping trips, and SOTA (Summits On The Air) events. For the latest Amateur/Ham Radio news and information, please visit these websites: 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://www.eham.net. https://amateurradionewsinformation.com (Amateur Radio News ...

Field Day 2016-Yaesu FT-817 QRP HF Portable. Post #1473.

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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=YwH8HUCjBDE. If you can't join a local Amateur Radio club for the upcoming ARRL Field Day (23-24 June 2018), why not operate solo from your backyard or the nearest public park?  Over the past several years, I've done just that because of employment conflicts or family matters. In this video from "Outdoors On The Air", we see what can be done with a simple, portable antenna, some good camping gear, and a small QRP rig such as the Yaesu FT-817 ND.  You can opt for the antenna described in this video or you can bring along a pre-made dipole or inverted vee antenna for your station.  You don't need much to get on the air and enjoy this annual Amateur/Ham Radio event.  Of course, there's not much you can do about hot, sticky summer weather or the persistent problem of biting insects.  Bring some insect repellant, some extra food, and p...

Portable HF Antenna For Field Day. Post #1472.

Portable HF Antenna For Field Day. Post 1472. https://www.dxzone.com/cgi-bin/jump.cgi?ID=33063. http://www.hamradio.me/asymmetrical-hatted-dipole-antenna-prototype.html. Author:  John Huggins (KX4O). Accessed on 24 April 2018, 2004 UTC, Post #1472. Please click link  or enter title URL into your browser search box to read the full article. Comment: I'm always looking for new antenna ideas, especially when the ARRL Field Day rolls around (23-24 June 2018).  I discovered this fascinating article by John Huggins (KX4O) during a cursory glance through the https://www.dxzone.com website. According to John, this post is a "discussion of (the) asymmetrical hatted-dipole antenna, a portable antenna that can be used for field day, sota, campings, or even for fixed installations..." John adds that the AHDA is a "free standing 20-10 meter antenna that is really easy to build...and easy to carry." John takes you step-by-step through the de...