Today it came to my attention that the Dutch Meshcore Community seems to shift their Meshcore/LoRa parameters, moving from SF8/CR8 to SF7/CR5:
https://meshwiki.nl/wiki/The_switch#The_Switch_(English)
While this breaking change might make sense for the flat Dutch landscape to increase network capacity and reduce airtime, I’m looking at the implications for more challenging environments.
The reduction in the Spreading Factor (SF) and the much lower Coding Rate (CR) significantly cut down the "safety margin" for signal reconstruction.
In a flat country, it's an efficiency win. In a region like the Black Forest area, however, you deal with:
- Massive signal attenuation from dense forest
- Multipath fading and diffraction over ridges
- Reduced link budget
Has anyone performed comparative testing of this specific configuration (SF7/CR5) in mountainous or heavily forested terrain?
I'm curious if the massive gain in airtime efficiency is worth the breaking change.
