Lora spreading factor distance

1. What is the spreading factor range for LoRa communication?
2. What is spreading factor in spread spectrum?
3. Does LoRa use spread spectrum?
4. What is cr in LoRa?

What is the spreading factor range for LoRa communication?

The spreading factor (SF) impacts the communication performance of LoRa, which uses an SF between 7 and 12. A larger SF increases the time on air, which increases energy consumption, reduces the data rate, and improves communication range.

What is spreading factor in spread spectrum?

The ratio between the bandwidth of the user signal and the transmit bandwidth is called the "spreading factor".

Does LoRa use spread spectrum?

LoRa (from "long range") is a physical proprietary radio communication technique. It is based on spread spectrum modulation techniques derived from chirp spread spectrum (CSS) technology.

What is cr in LoRa?

The coding rate refers to the proportion of transmitted bits that actually carry information. Coding rate can be 6/8, 4/8, etc… So if CR is 4/8 we are transmitting twice as many bits as the ones containing information.