I have developed the protocol /solution : NPR-VSAT.
It allows low datarate IPv4 access over the QO-100 WB transponder.
It could be used for low-datarate Hamnet access.
Documentation, source code, binary:
(sorry for the quick-and-dirty website, I will do better soon).
You should read the "user guide" first if you are interested.
The current version is usable for beta-tests.
In parallel, I am under discussion with AMSAT-DL.
At short term, we are allowed to make short duration tests (~30 min maxi).
It is currently too early to say if we could have one day a permanent 24h/day unattended NPR-VSAT Hub station. I dream of it, it would be the ultimate achievement.
It depends also on the interest and acceptance of the "community".
If you are interested by the project, if you want to test it at short term, you can contact me. E-mail : f4hdk at free dot fr
Do not hesitate to share with us the "usages" that you imagine if you had such an IP access.
Some characteristics of NPR-VSAT:
- Inherited from my previous project "NPR-70" New Packet Radio
- Runs on PC, either Windows or Linux
- runs with full duplex SDR, preferably Adalm-Pluto
- MF-TDMA (multi-frequencies Time-Division-Multiplexing-Access)
- Multi users, probably one or several dozens of simultaneous users
- low data-rate, 20kb/s to 100kb/s for users
- dynamic resource allocation
- up to 4 or 5 channels, each 50kS/s or 100kS/s or 200kS/s
- modulation BPSK or QPSK
- coordination via a central station, the VSAT-Hub
- full-mesh : client stations communicate directly with each others