Highspeed Soundcard IP Modem that turns two PCs' soundcards into a point-to-point network link. It modulates IP packets onto audio with OFDM (DMT), bonds the left and right stereo channels into two parallel lanes, protects everything with Reed-Solomon FEC and an ARQ with fast retransmit.
python numpy ham-radio tcp-ip software-defined-radio hamradio ofdm qam dmt packet-radio qam-modulation qam-demodulation ofdm-modem audio-modem soundcard-modem ip-over-audio
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Updated
Jun 12, 2026 - Python