4 ms·
ADSL upstream starts at 25kHz, downstream at >120kHz. So probably not. Purpose-designed ultrasonic hardware might be able to.
by detaro 5y ago
ADSL upstream starts at 25kHz, downstream at >120kHz. So probably not. Purpose-designed ultrasonic hardware might be able to.
- londons_explore 5y agoOr an acoustic coupler which also acts a little like an electrical coupler at higher frequencies because it has no electrical shielding...
- codeflo 5y agoNot sure if this is within the spirit of the question, but: The individual ADSL bands are only 4 kHz wide, so you could modulate 4 or 5 of them down into the audible range (20Hz - 20kHz) and back up again after the transmission through the acoustic coupler. In theory, ADSL should then pick those bands to transmit the data.