Please feel free to comment these lists of evolution, and express your requests, or your priorities. Either here or in the public chat.
- Better FEC algorithm, because currently it is very poor. If you can give me some help, I don't understand a lot standard FEC algo (with all these Maths).
Regular temperature check and re-calibration of SI4463 if necessary-> done! (firmware 2019_06_16 and above)
- Increase to 15 clients instead of currently 7 maxi. → Probably not feasible with current hardware at Master side, not enough RAM (new hardware under study)
Possible evolutions, if people are interested (raw order, no priority order):
Static IP management of some modems→ Removed because you can use future
"L2 pure ethernet transport feature"which will be more flexible
- Management via pure serial port (instead of USB)
- L2 Ethernet transport configuration (instead of currently L3 IPv4); could enable more flexibles topologies, and IPv6 compatibility. But a little bit less efficient.
Extension of frequency range to 420-450MHz instead of currently 430-440MHz (IARU region 1 limits)-> done! (firmware 2019_06_16 and above) Other modulation parameters, with lower datarates, in order to decrease RF bandwidth-> Done (firmware 2019_06_16 and above)
- QoS necessary in order to transport VoIP data over an NPR network
Very hypothetical evolution:
- Totally new design, microcontroller with more RAM, PCB optimized for automatic PCB assembly line. Goal would be to mass produce fully assembled modems. Probability low, only if enough people are interested.
- Frequencies split between uplink and downlink (in case you use NPR Master in a tower where a UHF FM repeater is already present). Additionally, the Master could be used in "FDD" (Frequency Division Duplex) mode in order to use these 2 frequencies simultaneously, like 2G or 3G mobile phones. 2 modems required at Master side. Complex!