[HN Gopher] Through-the-Earth Mine Communications
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       Through-the-Earth Mine Communications
        
       Author : slow_typist
       Score  : 25 points
       Date   : 2024-12-10 20:20 UTC (4 days ago)
        
 (HTM) web link (en.wikipedia.org)
 (TXT) w3m dump (en.wikipedia.org)
        
       | ElectRabbit wrote:
       | Recently some people experimented with LoRa in mines.
       | 
       | Seems like the extreme sensitivity (down to -146dBm) is able to
       | deal with the reflections there pretty well down there.
       | 
       | But: that's not Through-the-Earth. It's Within-The-Earth.
       | 
       | (I have no details regarding the used band, antenna nor exact
       | setup)
        
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       (page generated 2024-12-14 23:00 UTC)