LoRa buys kilometers of range on license-free bands at tiny power, and the
price is time: a transmission occupies the channel for a duration the radio
settings fix, and the regional rules cap how much of the time a node may
transmit. This is the arithmetic that keeps a node inside that budget, with no
radio and no floating point in the answer.
It also works out how far a link reaches: the EIRP an antenna and cable leave,
the free-space loss of a path, the first Fresnel zone, the sensitivity of a
receiver, and the power 47 CFR 15.247 allows through an antenna, in decibels
resolved to a hundredth.
Ergonomic facade over the generated LoRa binding.
LoRa buys kilometers of range on license-free bands at tiny power, and the price is time: a transmission occupies the channel for a duration the radio settings fix, and the regional rules cap how much of the time a node may transmit. This is the arithmetic that keeps a node inside that budget, with no radio and no floating point in the answer.
It also works out how far a link reaches: the EIRP an antenna and cable leave, the free-space loss of a path, the first Fresnel zone, the sensitivity of a receiver, and the power 47 CFR 15.247 allows through an antenna, in decibels resolved to a hundredth.