Posts

Dipole, EFHW, Vertical, Windom Antenna Comparison. Post 1701.

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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=OCz16I0xlCo. Thanks to Jonathan Charles and his fellow radio amateurs for conducting this "Field Test" of four popular HF antennas, including the classic dipole, End Fed Halfwave (EFHW), the Vertical, and the popular Windom antenna.  This video gives you an excellent idea of what these antennas can do under portable or emergency operations.  Of course, each antenna has its strengths and weaknesses. The thing to remember is to make the best antenna you can with the materials available. For the latest Amateur/Ham Radio news and information, please visit these web sties: 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://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. htt

Free Azimuthal Maps. Post 1700.

Free Azimuthal Maps. Post 1700. https://ns6t.net/azimuth/azimuth.html Author:  NS6T. Accessed on 04 December 2018, 2321 UTC, Post 1700. Please click link to down load the complete article. Comment:  NS6T is offering a free azimuthal map for the asking.  The links will take you to a simple form which will help generate an azimuthal map from your location.  The map is easy to make and will help you aim your beams and other directional antennas.  This is a great aid for contesters and DX-Expedition followers. 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://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).

How To Build A Delta Loop Antenna. Post 1699.

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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=1uUVMaRFMv4. One of my favorite HF antennas is the classic delta loop.  You can feed the antenna with 50 ohm coaxial cable for single band use or connect the antenna to an antenna transmatch (i.e. "tuner") with balanced feeders for multiband HF operation. In this video, Hiram Vazquez does an excellent job of explaining the theory, design, construction, and use of the delta loop antenna.  The delta loop has some gain, receives well, takes up little space, and is fairly cheap to make.  You can mount the delta loop horizontally, vertically, or in a sloper configuration. 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://oahuarrlnews.wordpress.com. https://ha

HyEndFed 3 Band + Spiderbeam 12m pole. Post 1698.

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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=P6rsOOvUEuo In this video from Tracy ("Outdoors On The Air"), we see any easy enhancement of the popular HyEndFed 3 Band HF antenna by using a 12 meter/39.36-foot Spiderbeam Pole.  This combination makes it easy to erect a vertical antenna for portable, field, or emergency situations. 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://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).

Wire Antennas for Ham Radio. Post 1697.

Wire Antennas for Ham Radio. Post 1697. Source: https://www.qsl.net/va3iul/Antenna/Wire%20Antennas%20for%20Ham%20Radio/Wire_antennas_for_ham_radio.htm Author:  Iulian Rosu (YO3 DAC/VA3IUL). Please click link to read the complete article. Comment:  If you're "stumped" for new antennas for your ham radio station, check out the 368 varieties suggested by Iulian Rosu.  Building and using these wire antennas will keep you busy for more than a year. Iulian provides a detailed graphic of each antenna, complete with measurements and other helpful data.  I've tried several of Iulian's designs with great success, even in this time of disappointing propagation. Why not try a few of these antennas--you may be pleasantly surprised by the results. 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 a