In the quarterly report for the ARRL’s 500 kHz Experimental Station for the period ending May 2010 (see link to PDF below), Experiment Coordinator Fritz Raab, W1FR, reported that since the experiment began in late 2006, 20 of the 32 participating stations are currently active. The FCC’s Office of Engineering and Technology granted the WD2XSH experimental license to the ARRL in September of that...
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