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hamsphere4.com - Amateur Radio for your PC and Smartphone - HamSphere®
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hs40.hamsphere.com - Build your own virtual Ham Radio - HamSphere®
Keywords: receiver, amateur radio, ham radio, transmitter, transceiver, ham radio software, propagation, Mac, linux, windows
Keywords: receiver, amateur radio, ham radio, transmitter, transceiver, ham radio software, propagation, Mac, linux, windows