Posts

VK3YE Amateur radio: Ask me anything Q & A. Post 1971.

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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=6TpXibbie1U. Australian radio amateur Peter Parker (VK3YE) currently has 764 ham radio-related videos on his youtube channel.  One of his more popular programs is his "Ask me anything Q &A." The range of topics is quite broad, from antenna design and construction to portable operating and and simple transceiver repairs. At the end of each program (about an hour), he encourages viewers to submit their questions for possible inclusion in this recurring program.  Peter's programs are informal, down-to-earth, and easily understood.  Please check out this program from 23 July 2019 and then submit your question. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.blubrry.com/arrlaudionews/. https://oahuarrlnews.wordpress.com. https://hamradiohawa

How to build an Inverted L for low-bands. Ham Radio Antennas made easy. Post 1970.

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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=kCq_fOwCLT4. If your backyard or urban property lacks the space necessary for a full-sized horizontal dipole for the 80 meter amateur radio band, then a simple, easy to build Inverted L Antenna may be what you need. In this post, Callum (M0MCX) explains how he made his first inverted L antenna in the summer of 2017 for the IOTA 80 meter contest.  After he built the antenna and learned of its capabilities, Callum said "I loved it...small footprint, some DX capability, and some local activity, too." Why not make an inverted L antenna for your station? For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. http://www.southgatearc.org. Th

N4LQ 160-10 Multiband Doublet with Auto-Tuner. Post 1969.

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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=0jVVQ8ReQXA . If you can only erect one HF antenna to cover several amateur radio bands, you may find this multiband doublet from N4LQ (Steve Ellington) is what you need. According to Steve, this doublet is his "only antenna...(it) covers all HF bands..." Steve uses a MFJ-998 auto tuner connected to 60 ft/18.29 meters of ladder line to complete the antenna.  Steve says the 60 ft/18.29 meters of feed line "presents an easy match to tuner for 160 (meters)." For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. 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).

New Home Brew Ladder Line. Post 1968.

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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=c1Ays78mwZA. Multiband HF antennas can achieve higher efficiency and less power loss if you use a balanced feed line. Although 300 ohm television twin lead and 450 ohm ladder line are available from a number of vendors, why not make your own balanced feed line and get even lower losses? In this video, Steve Ellington shows how to make your own balanced feed line. Steve used 12 AWG "Flexweave 545" from The Wireman for his ladder line.  The 6 inch/15.24 cm spreaders are made from acrylic sold by UPC in Lima, Ohio U.S. Plastics. In addition to these materials, Steve used 14 inch/35.56 cm black wire ties to secure the spreaders.  Steve's center-fed antenna measures 130 ft/39.63 meters long and is approximately 50 ft/15.24 meters above ground.  His antenna "tuner" is a MFJ-998.  No baluns or chokes were needed by the antenna.  LMR-60

210 Ft Non Resonant Dipole - Fed With 90 Feet of Ladder Line. Post 1967.

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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=Fw_T5u_wd0E. Here's an interesting antenna from the Overlook Mountain Amateur Radio Club. This multiband HF antenna was inspired by a design from NE2Q.  The antenna is a 210 ft/64.02 meters Non Resonant Dipole fed by 90 ft/27.43 meters of 450 ohm ladder line.  The ladder line goes into a 4:1 current balun and then connects to an antenna transmatch (i.e. "tune") with a short length of 50 ohm coax. The antenna covers 160 meters through 10 meters and shows a marked improvement over the club's Fan Dipole.  If you have some space, you may want to build this simple, effective, and inexpensive multiband HF antenna. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislanda