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Hi,
It's true that low frequency is less attenuated over long distance however more side effects should make difficult any communication systems (echoes, sound wave interference, air turbulence and wind). Moreover mems microphones are not sensitive below ~100 Hz
Best regards,
Nicolas
Hi,
We need to use qrtone outside, where low frequency messages would travel much farther away.
Would it be possible to configure qrtone to transmit over the lower range of the audible spectrum?
Thanks,
@Baudry and @monperrus
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