====== 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.