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blog:2019-04-11:npr_new_packet_radio [2021/01/29 20:47] va7fiblog:2019-04-11:npr_new_packet_radio [2021/06/05 12:44] (current) va7fi
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 {{  https://cdn.hackaday.io/images/7039721551121000684.jpg?200}} {{  https://cdn.hackaday.io/images/7039721551121000684.jpg?200}}
  
-> 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). +<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.+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]] [[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. <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.
blog/2019-04-11/npr_new_packet_radio.txt · Last modified: 2021/06/05 12:44 by va7fi