This is an interesting read, using the 48 Khz Audio channel they are able to run QAM modulation and get 400 Kbps data rate, then they can stream video over that.
This would be idea for Amateur TV, over the HAM Radio Bands. Where you tune your radio to a channel and receive TV, from headphone jack.
J-QAM, A QAM soundcard modem.
Description:
Able to use the soundcard to send and receive data up to about 400kbs by implementing the QAM modulation scheme.
Data can be two way or one way. Any sort of data can be sent , Files, Video, Audio, WebPages etc.
Make a transmitter and you have your very own broadcast station.
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