2 - Sending Messages: Channel, Data Rate, and TX Power Guidelines for Broadcasting

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2 - Sending Messages

Messages sent from an end device to a network server via one or more nearby gateways are referred to as uplinks.

In this book, you learn the rules and best practices to follow when sending uplinks from your end device using the LoRaWAN® 1.0.4 specification.

Channel, Data Rate, and TX Power Guidelines for Broadcasting

This section explains how to work out which channel, data rate, and TX Power must be used for the transmission, which vary based on:

The region the device is operating in
Whether the end device is using the defaults or has received updates from the network server
Whether the end device is working through the ADR backoff process whereby it attempts to restore lost connectivity