Ofdm audio modem. A tiny OFDM modem in Python that works over audio. ...
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Ofdm audio modem. A tiny OFDM modem in Python that works over audio. correlation packets dsp microphone fast-fourier-transform transmit-data webaudio-api modem receive-data fsk psk ofdm data-transmission sound-waves discrete-fourier-transform Updated on May 16, 2018 JavaScript Jul 30, 2025 · A supposedly Russian HF data mode with MFSK, OFDM and frequency sweeps, resulting in an interesting spectrogram and sound. The developed modem is capable of communicating over Ethernet connection. Communication standards are established during the development since the audio modem is required to be inter-operable between different groups. Possibly this is due to testing a modem or a new path between stations - we may never know. Thus the digital data is morphed Sep 1, 2024 · Modulation scheme switching between ASK, PSK, OFDM, and BFSK has been successfully tested using a Reinforcement Learning (RL) algorithm to dynamically adapt modulation schemes based on varying data volume and data rates. The sender modulates the input data into an audio signal, which is played to the sound card. May 15, 2021 · An OFDM audio modem that uses speaker as transmitter and microphone as receiver is developed. With an ARD9000, it's easy to convert existing HF analog transceivers to work digital voice with NO transceiver modifications. Jun 20, 2025 · Sporadic CIS modes Who knows if these will ever return? Included in this list are ones that were rarely noted active, or have since vanished.
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