26 Sept 2010
500kHz ERP with the vertical loop antenna
Results on 500kHz WSPR with the vertical 80sq m area loop (made from 1mm diameter wire) are very good with signal reports from G3XIZ this evening of +4dB S/N. M0BMU has given me - 4dB S/N. This leads me to believe the ERP of the system is now somewhat higher than with the short Marconi vertical. Based on earlier calculations I think my ERP, in the best direction, must be about 2mW now, some 6dB more than it was.
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