The NCDXF, in cooperation with the IARU, constructed and operates a worldwide network of high-frequency radio beacons on 14.100, 18.110, 21.150, 24.930, and 28.200 megaHertz. These beacons help both amateur and commercial high-frequency radio users assess the current condition of the ionosphere. The entire system is designed, built and operated by volunteers at no cost except for the actual price of hardware components, shipping costs, and so on.
BEACON PROJECT ARTICLES
- The NCDXF/IARU International Beacon Network--Part 1, October, 1994.
- The NCDXF/IARU International Beacon Network--Part 2, November, 1994.
- The NCDXF/IARU International Beacon Network--Report and Update, September, 1997.