Report - 6 m,2 m and 0 - QRPRADIOyu1lm.qrpradio.com/HF-VHF SDR receiver-part1-YU1LM.pdfHF, 6 m, 2 m and 0.7m SDR (Software Defined Radio) Receivers AR1 and AR2 Series -Make it Simple as Possible

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