LoRa is based on opened radio-frequency communications, different frequencies are used depend on locations:
- 430 Mhz – valid for Asia
- 780 Mhz – valid for China
- 433 Mhz – valid for Europe
- 866 Mhz – valid for Europe
- 915 Mhz – valid for USA
LoRa supports different Data Rates and offer a large radio link budget over 160dB. The power consumption is about 40mA during transmission and 10mA during reception. It allows a wide coverage : about 2.5Km from antenna inside a city and up to 15km in a countryside.
LoRa is based on a Spead Spectrum technology this technology helps to reach long distance over noise boosting up to 10x the distances obtains with classical transmission systems. It also have a good shifting frequency immunity. LoRa sound to have good results on movement. It uses wide-band linear frequency modulated pulses. Frequency increase or decrease to encode the information.
|LoRaWAN Classes, © 2015 LoRa™ Alliance.|
[Text from https://www.lora-alliance.org/What-Is-LoRa/Technology]
More details about the protocol can be found in the document.