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NVIS (near vertical incident skywave) antennas are perfect for local, state, and regional communications during portable or emergency operations. NVIS antennas radiate signals at a high angle, making them ideal for coverage out to approximately 300 miles/486 kilometers. I've used low-slung dipoles (approximately 17-feet/5.182 meters above ground) for local Hawaii nets and rag chews around the state.
In this video from "Commsprepper", we learn how to set up a basic NVIS antenna based on a design from W9WIS (http://w9wis.us/NVIS.html). This antenna is simple, easy to erect, and inexpensive. Other NVIS antennas can be configured as tuned end-fed wires, low level loops, and even magnetic loops. Have some fun and build a NVIS antenna today.
For the latest Amateur Radio news and information, please check these websites:
http://www.arrl.org/arrl-audio-news (a weekly podcast updated every Friday afternoon).
https://paper.li/kh6jrm/1430280353 (Amateur Radio News & Information).
other sites of interest:
https://paper.li/f-1476233615 (Hawaii Science Digest).
https://hawaiiintelligencedigest.com (trends in geopolitical intelligence and cybersecurity).
https://paper.li/f-1482109921 (My Daily Intelligence Briefing).
Be sure to check the blog sidebars for more antenna and propagation articles.
Opinions expressed in this blog are mine unless otherwise stated.
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM)