The LoRa Developer Forum is now in read-only mode and new content will not be added. If you require technical support related to LoRa, please contact our experts here. For sales enquiries, please contact us here.

FORUM

Spreading Factor Ranges

Maybe someone can clarify about the Spreading Factor and their official range defined by Semtech.

So far i only found data on the Spreading factors SF7-SF10

SF7 2Km
SF8 4Km
SF9 6Km
SF10 8Km

But what about the other Spreading Factors eg. SF6, SF11 and SF12.

I dont see how there can possibly be an ‘official’ range for a spreading factor, it makes no sense.

The achievable range is dependant on a combination of factors;

The environment and location.
The antennas used and height.
Frequency.
Power level.
Bandwidth
Coding rate.
Spreading factor.

I have had SF8 working at 269km, so a little bit more than the ‘official’ 4km.

1 Like