I saw the picture below on the excellent forum CB Usuarios y aficionados a la banda Ciudadana and thought it would be great to show it here. Check out the band plan, trucks channel 19, SOS on channel 9, Caravans and campers channel 2 and I think you can see and understand the rest as quite easy to understand these.

Great idea and congratulations to them. In Spain, some of the most passionate users and to see how well they have things structured, good forums, great insight into the hobby also. And when you look at this photo then check out also the CB Museum and the CB27 web space, both excellent indeed.