Hi,
I am setting my op_class and channel params in wpa_supplicant_s1g. I was wondering if there is a table of country, channel, and op_class to real frequency + width somewhere?
Or is the mapping simple enough to just think about, and I am just not understanding it?
Thanks!
I would not call the channel mappings simple, especially if you’re dealing with multiple regions.
If you’re using one of our OpenWRT ports we’ve got a channel table in the web UI under Help > Regulatory Information, which you can put your target region into. This would probably be the most straightforward place to quickly look up what’s supported.
If you need a bit more info on where it’s derived from, it is in the S1G operating classes table found in IEEE802.11-2024, Table E-5 pg. 5663. However, compared to the spec, some channels are disabled/unsupported for various reasons such as when spectral envelope requirements imposed by the local regulatory bodies are too stringent for those channels to be usable.
If you don’t have an OpenWrt device handy, see also: morse-feed/essentials/morse-regdb/artefacts/repo_channels.csv at main · MorseMicro/morse-feed · GitHub
(note that if you are using our OpenWrt version, you shouldn’t have to worry about manual wpa_supplicant configuration, as netifd will do this for you)
Oh this is great thanks! The standard table was a little confusing.
Yup I am going fully custom using Buildroot.