How to make RN2483 node use a fixed channel and spreading factor?

Hi,

For use with a single channel gateway, I want my node to use a fixed channel and spreading factor.

I think it is possible to do this if I look into the RN2483 Command Reference. Example in the doc:

• mac set ch drrange 13 0 2 would set it that channel 13 can have data range from 0 (SF12/125) to 2 (SF10/125)
• mac set ch status 4 off turns off channeld ID 4.

So if I disable all channels except one and set drrange min and max equal wouldn't I have set it to single channel and fixed Spreading Factor?

Question then remains: which channel and which datarange?