> Hm, 3 kbit/sec. Soundcard/tape has high SNR and is quite linear; one
> could use some V.34-like QAM/TCM scheme but at a higher symbol rate.
> If V.34 can get 30 kbit/sec from a phone line, surely a tape deck with
> 15 kHz bandwidth would roughly quadruple this, giving around 80 MByte
> per 90-min tape. Would want to interleave to control dropouts.
YOU do the reference carrier tracking with anything but a tape costing
more than your computer 8-)
Tom
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