In the 500 kHz Experiment quarterly report for the period ending February 2010, Experiment Coordinator Fritz Raab, W1FR, reported that since the experiment began in late 2006, 19 of the 31 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 year. Raab said that during the quarter, nine new stations were active on the air: "Conditions during the winter were generally good. As a result, there has been a great deal of activity during the past three months."
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