Transmitting data with Raspberry Pi and RTL-SDR

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New from Ben Benchoff on, about turning the Raspberry Pi into a radio transmitter, using RTL-SDR, the $30 USB TV tuner-cum- software defined radio.

This radio transmitter is combined with minimodem, a program that generates audio modem tones at the required baud rate. Data is encoded in this audio stream, sent over the air, and decoded again with an RTL-SDR dongle.



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