Sigfox doesn't have channels per se. Each Sigfox message is concentrated on ~100Hz, with the base stations listening to a 200KHz part of the available spectrum.

Sigfox doesn't have channels per se. Each Sigfox message is concentrated on ~100Hz, with the base stations listening to a 200KHz part of the available spectrum. Regarding interferors, the Ultra Narrow Band technology offers a great resistence: energy concentrated on a tiny width, plus the "random frequency" effect of the sigfox protocol.