[quote=@Hammerman]
[@Red Alice]
Man, my faction's guild would like to advertise as well but the faction needs to have some sort of broadcast radio for that to be possible.
[/quote]

Just hire Ritchter's Rangers specifically to use their radio to advertise your adventurers guild as a competitor to the Rangers.

It's the best possible plan.

[s]But you don't have a way to even contract the Rangers because you lack a radio so .[/s]