Posts

Extreme Broadband Dipole Antenna for 2 meters. Post #1662.

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If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=PSED0Pxe7c0. This well-made and easy-to-understand video from "Giovanniram22" shows us how to build a broadband coaxial folded dipole antenna using RG-213 coaxial cable.  According to the author, the antenna is suitable for both transmitting and receiving on a frequency range of 140 MHz to 150 MHz.  This antenna could also be used on the 3rd harmonic to work stations in the 440 MHz-450 MHz amateur radio band (70 cm).  Most of the materials for this antenna can be found in your "junk box" or at your neighborhood building supply or home improvement outlet. 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://oahuarrlnews.wordpress.com. https://hamradi

Ham College 46. Post #1661.

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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=MGFHh6Hul7c. "Ham College" is one of my favorite video podcasts.  The presentations are laid back, easy to understand, and contain lots of humor.  In this edition from AmateurLogic.TV, the team continues its exploration of the General Class Amateur Radio License with an emphasis on Solar Propagation Effects and the characteristics of Delta Loop and Log Periodic Antennas.  The antenna segment of this program is well-organized and clearly explained. 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://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. http://www.southgatearc.org. Thanks for

3 band delta loop. Post #1660.

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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=wvdQ-aXBtLI. If you need a simple, quiet antenna that covers the 15/12/10 meter amateur radio bands, please consider this horizontal loop from Sandy (G4XRV).  The antenna is fed with balanced line and, apparently, doesn't need an antenna transmatch (tuner).  This design can be scaled for any range of amateur radio bands, if you build the antenna for the lowest selected frequency and use an antenna transmatch to reach higher bands.  I have a 40 meter delta loop which covers all ham bands between 40 and 10 meters.  I use an antenna "tuner" and 450 ohm ladder line to keep the rig happy.  If you can only use one antenna for HF, consider building a delta loop.  You won't be disappointed. For the latest Amateur Radio/Ham news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/

Barbed Wire Antenna. Post #1659.

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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=j_itg93_Fes. Just about anything can be used as an HF antenna, provided you can match the impedances between rig and wire and have a suitable ground radial system.  In this video, WA5PMO uses a random length of barbed wire fence for his antenna.  Apparently, the emergency lashup works, saying "I worked Canada on 20 meters from Wixon Valley, Texas (using) a Yaesu-879D."  Be sure to tap your creativity if you need an HF antenna in a hurry. 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://oahuarrlnews.wordpress.com. http://hamradiohawaii.wordpress.com. https://bigislandarrlnew.com. https://www.eham.net. http://www.southgatearc.org. Thanks for joining us

DIY Man Portable Magnetic Loop Antenna Beginner's Build. Post #1658.

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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=Dw1rz0CVn90. Here's another exceptional video tutorial from Julian (OH8STN).  This video demonstrates two different antennas, both built on the popular Chameleon magnetic Loop Starter Kit.  Either one of these compact antennas will prove useful for those living in deed-restricted homes (HOAs and CC&Rs) or for those needing a small, effective HF antenna for field or portable use. 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://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).