Sep 16, 2026
LoRaUnlicensedGuidesHardware
What LoRa Actually Is: Physical Layer Mechanics, FCC Part 15, and the 1-Watt Trap
A builder's guide to Chirp Spread Spectrum physics, symbol time math, why 125 kHz LoRa cannot use the §15.247 1-Watt digital modulation shortcut, and how Part 15 differs from Part 97.
8 min read
