Posts

Enabling ham radio channels in wireless 802.11 devices (updated). Post#1273.

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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=XXptUTUCwAM A simple, basic tutorial from KB9MWR on how to enable ham radio channels in wireless 802.11 devices. The video contains an excellent description of the antennas best suited for this purpose.  This "how-to" video includes a couple of AirOs and DD-WRT screen shots.  High speed multimedia using part 15 wireless internet can be the foundation of a MESH system for your neighborhood. Detailed information on this system can be found at: http://www.qsl.net/kb9mwr/projects/wi. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.com. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a podcast which is updated each Friday afternoon). https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information). Othe

Ham Radio Mast for Antenna | Setup. Post #1272.

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If you can't view this video, please insert the title URL into your blog search box: https://www.youtube.com/watch/v=ob53Zsp-ja8. Telescoping fiberglass poles are useful for supporting a variety of antennas from inverted vees to horizontal dipoles.  In this video from "AnyThingWithWheels" we see just how easy it is to assemble, build, and use a MK-4-HD pole to support HF antennas.  In this video, "AnythingWithWheels" extends the pole to 25 feet/7.62 meters to support his antenna high above ground.  This telescoping pole is fairly lightweight at 17.3 pounds/7.86 kilograms, making it good for portable operations. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com.. https://bigislandarrlnews.com. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://paper.li/kh6jrm/1430289353 (Amateur Radio N

Building a trap dipole for 7 and 14 MHz. Post #1271.

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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=LbEAwAG1KMA. According to Peter Parker (VK3YE), "A trap dipole is a good choice if you only want operation on two or three bands and don't want to adjust an antenna coupler to change between them."  In this well-produced, easily understandable tutorial, Peter takes us step-by-step through the design, construction, and use of a trap dipole for the 40 meter (7 MHz) and 20 meter (14 MHz) amateur radio bands.  Of course, you could design this antenna for other bands, such as 80/40 meters and 15/10 meters.  Other than winding some coils, the antenna is simple, effective, and fairly inexpensive.  This antenna would make a good weekend project. For the latest Amateur Radio news and information, please visit these websites: http:/www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.com. http://www.arrl.org. http://

What is a loading coil? Post #1270.

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If you can't view this video, please insert this URL title into your browser search box: https://www.youtube.com/watch?v=LF8-UrXqUVA. A good, basic discussion of the theory and use of loading coils.  Loading coils are used to reduce the physical length of a resonant antenna and are found in a variety of home made and commercially-available antennas.  This video from Carl Lewis simple, hands on, and to the point.  Keep a copy of this video in you ham radio library for future reference. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.com. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast whic is updated each Friday afternoon). https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information). Other sites of interest: Hawaii Science Digest (https://paper.li/f-1476233615). Hawaii Intelligence Digest (https://hawaii

J Pole Antenna for 2 Meters. Post #1269.

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If you can't view this video, please insert this URL into your browser search box: https://www.youtube.com/watch?v=UABXDyu_hsE. Here's a nice weekend project that will improve the performance of your 2 Meter equipment.  In this video from "drez20001", we get a complete tutorial on how to design, build, and use a J Pole Antenna for the popular 2 Meter amateur radio band.  The antenna is sturdy, portable, and will give you modest gain on this popular band.  The only drawback to this antenna is the cost of copper pipe used for the antenna sections.  You could substitute aluminum for the copper and save some money.  Another alternative to using copper would be to build the antenna from PVC pipe and use #14 AWG house wire for the radiating elements. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.com. http://www.arrl.org. http://www.arrl.or