Is there any guide for radio owners and how radio can be monetized with Bitrad?
I think this works rather the other way around where you pay to the audience for listening. But to be sure ask Uwe in the telegram bitrad.io channel.
What I know is that on the platform they basically integrate the streams from different radios, which are basically coming for free. Radio monetization, on the other hand, comes from the advertising (typically managed by the radio owners locally and not related to bitrad.io service).