Amateur Extra License Class Chapter 2 Operating Practices.
01/10/2013 Ebro Observatory, October 1st, 2013 New Technology involved in SWING: Software Radio and HF Links A.L. Saverino A.Capria, F.Berizzi, M. Martorella,
Amateur Extra Licensing Class Presented by W5YI Arlington, Texas Skywaves & Contesting.
Ebro Observatory, October 1st, 2013
Amateur Extra License Class
Amateur Extra Licensing Class Lake Area Radio Klub Spring 2012 Skywaves & Contesting.
