Michael Martens (KB9VBR) takes us through the theory, design, construction, and testing of NVIS (near vertical skywave) antennas.
These "cloudwarmer" HF antennas are perfect for state and regional communications, with signals reaching between 100 and 300 miles (162 to 486 km).
As Michael explains, NVIS antennas are easy to make and can fill in communications gaps not covered by VHF/UHF repeaters:
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Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).