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EI2GYB > PACKET 25.03.19 08:19l 37 Lines 1709 Bytes #999 (0) @ WW
BID : 8464_EI2GYB
Read: GUEST
Subj: NPR New Packet Radio 500Kbps
Path: IW8PGT<IZ3LSV<IW0QNL<JH4XSY<N3HYM<N9PMO<GB7YEW<ZL2BAU<EI2GYB
Sent: 190325/0716Z 8464@EI2GYB.DGL.IRL.EURO BPQ6.0.16
Hi ALL ,
I was having a look around the net last night and come accross this new Packet Radio
It looks very interesting
IP over 430MHz Ham Radio, up to 500kbps, 20W RF.
Extension for HSMM-Hamnet. 100% open-source.
https://hackaday.io/project/164092-npr-new-packet-radio
Also contains a nice video !
DESCRIPTION
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 modem is easy to build and reproduce.
You can add a DMR radio amplifier in order to achieve 20W radio power or more.
The main usage is an extension of HSMM - Hamnet networks.
All the project is open-source : hardware, software, protocol specification.
If you have questions, you can use the public chat room, or contact me via e-mail : f4hdk[at]free[dot]fr
Best regards
Steve - EI2GYB
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Packet: EI2GYB@EI2GYB.DGL.IRL.EURO
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