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blog:2019-04-11:npr_new_packet_radio [2019/04/11 06:29] – ve7hzfblog:2019-04-11:npr_new_packet_radio [2021/06/05 12:44] (current) – va7fi
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 +====== NPR (New Packet Radio) ======
  
 +{{  https://cdn.hackaday.io/images/7039721551121000684.jpg?200}}
 +
 +<QUOTE>NPR (New Packet Radio) is a custom radio protocol, designed to transport bidirectional IP trafic over 430MHz radio links (ham radio). This protocol is optimized for "point to multipoint" topology, with the help of managed-TDMA.  Bitrate is up to 500kbps (net, effective bitrate).
 +
 +The radio modem is cheap (~$80) and home-made, with a 433MHz ISM module inside. The modem is connected locally with Ethernet, therefore no specific software is needed on PC.</QUOTE>
 +
 +[[https://hackaday.io/project/164092-npr-new-packet-radio|Link]]
 +
 +<fc #ff0000>Update</fc>: here's another [[https://spectrum.ieee.org/geek-life/hands-on/build-a-longdistance-data-network-using-ham-radio|article]] that explains a bit of the history of the project.