Currently, we have [radio] and [radio-communications]. The radio tag has a much shorter tag info, and it seems to be basically the same as radio communications. There are 11 questions tagged radio and 62 tagged radio communications. We should either retag questions from radio to radio-communications, synonymize them, or clarify how they are different.
To me they are different and the
radio tag info should be modified/updated.
Looking at the questions using the tags it seems that also for the community the two tags are not synonyms: