Meshtastic LoRa Configuration Options and Regional Settings

This Meshtastic documentation page details the LoRa configuration options available for Meshtastic nodes, focusing on radio settings. It covers parameters such as Region, Use Preset, Modem Preset, Max Hops, Transmit Power, Bandwidth, Spread Factor, Coding Rate, and Frequency Offset. The page emphasizes the importance of setting the lora.region to comply with local legal limits, providing a table of region codes, frequency ranges, duty cycles, and power limits for various countries including the US, EU, China, Japan, Australia, New Zealand, Korea, Taiwan, Russia, India, Thailand, Ukraine, Malaysia, Singapore, Kazakhstan, Brazil, Philippines, and Nepal, as well as a 2.4 GHz band option. It notes that devices within a mesh must have identical Region and Modem Preset settings for full communication. Modem Presets offer predefined settings to optimize for speed or range, influencing network congestion and message receipt delay. The document also mentions specific duty cycle limitations for EU433 and EU868 regions.