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Here's another simple, easily made dipole antenna that covers the 40 and 20 meter Amateur Radio bands. Separate dipoles for each band are joined at a center connector and fed with the same 50-ohm coaxial feed line. According to KC2IRV, this antenna will also work on 80 meters with a sturdy antenna "tuner." Fifteen meter operation is also possible using the 3rd harmonic of 7 MHz. SWR will be slightly higher on 15 meters than 40 meters, but can be controlled with an antenna "tuner." KC2IRV uses 1-inch/2.54 cm PVC plumbing Tees for insulators. A cheap, multiband HF antenna that works.
For the latest Amateur Radio News and information, please visit these websites:
http://www.kh6jrm.info (breaking news for radio amateurs).
http://www.arrl.org/arrl-audio-news (podcast issued each Friday...suitable for repeater use).
Other sites of interest:
http://hawaiisciencedigest.com (science and technology news fro radio amateurs).
https://hawaiiintelliegencedigest.com (trends in geopolitical intelligence and cybersecurity).
https://paper.li/f-1482109921 (Hawaii Intelligence Daily--breaking news concerning terrorism, politics, geopolitics, strategic forecasting, and online security).
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Opinions expressed in this blog are mine unless otherwise stated.
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM)