Helium Network Overview and Basics
LoRaWAN Networks Versus the Helium Network
Regional Channel (Frequency) Plans
In general, the Helium network has attempted to maintain compatibility with the LoRa Alliance regional parameters specification. In some cases, the Helium network has selected a specific subset of the channels defined by the LoRa Alliance. The Helium Network channel plans can be found at: https://docs.helium.com/lorawan-on-helium/frequency-plans/.
When purchasing a sensor, make sure to verify that it supports your region's core frequency range, for example U.S. 915Mhz for North America, or EU 868Mhz for Europe. LoRaWAN sensors and endpoints are capable of supporting all channel plans within their core frequency range. With both LoRaWAN and Helium networks, the network server sends the proper channel mask to the device once the join process is complete. Therefore, for most deployments, the Helium Router will automatically provide the proper channel mask to the sensor. The channel mask sets the specific local frequencies used by LoRaWAN end devices when they use a network.